refactor : 代码重构

2026-05-22 00:11:41 +00:00 · 2026-03-26 21:02:11 +08:00
parent 8b35472991
commit d47b9e9d56
304 changed files with 4305 additions and 2618 deletions
--- a/Assets/YooAsset/Docs/1.命名准则.md
+++ b/Assets/YooAsset/Docs/1.命名准则.md
@@ -53,6 +53,8 @@
 | `LogOff` | `logOff` | ~~LogOut~~ |
 | `Email` | `email` | ~~EMail~~ |

+> ✔️ 在 Unity 项目中，`ID` 保持全大写以与 Unity API 风格一致（如 `GetInstanceID()`、`PropertyToID()`），项目内应保持风格统一。
+
 ### 1.5 区分大小写

 - 不要假定所有语言都区分大小写
--- a/Assets/YooAsset/Docs/日志规范.md
+++ b/Assets/YooAsset/Docs/日志规范.md
@@ -14,12 +14,12 @@

 ```csharp
 // ✔️
-$"File cache entry not found: '{bundleGUID}'."
+$"File cache entry not found: '{bundleGuid}'."
 $"Invalid clear method: '{options.ClearMethod}'."
 $"Could not find file '{filePath}'."

 // ❌
-$"File cache entry not found: {bundleGUID}."
+$"File cache entry not found: {bundleGuid}."
 ```

 ### 1.2 数值变量不加引号
@@ -95,6 +95,17 @@ throw new Exception("catalog file data is null or empty");
 "Bundle handle null."
 ```

+> **例外**：`not found` 等 .NET 生态中广泛使用的惯用短语，允许省略 `was`，以保持简洁和一致性。
+
+```csharp
+// ✔️ 惯用短语，省略 was
+"File cache entry not found: '{bundleGuid}'."
+"Asset not found: '{assetPath}'."
+
+// ❌ 冗余
+"File cache entry was not found: '{bundleGuid}'."
+```
+
 ### 2.3 不要以冠词或变量开头

 消息以关键实体词开头，不要以 `The` / `A` / `An` 或变量开头，便于日志搜索和排序。
@@ -103,11 +114,11 @@ throw new Exception("catalog file data is null or empty");

 ```csharp
 // ✔️
-$"Cache entry already exists: '{bundleGUID}'."
+$"Cache entry already exists: '{bundleGuid}'."
 $"Log file '{name}' is full."

 // ❌
-$"The cache entry already exists: '{bundleGUID}'."
+$"The cache entry already exists: '{bundleGuid}'."
 $"'{name}' log file is full."
 ```

@@ -174,7 +185,7 @@ $"Exception in {this.GetType().Name}.InternalStart: {ex}."

 ```csharp
 // ✔️ 统一格式
-$"File cache entry not found: '{bundleGUID}'."     // 所有缓存未命中统一使用此句式
+$"File cache entry not found: '{bundleGuid}'."     // 所有缓存未命中统一使用此句式
 $"Exception in {GetType().Name}.{MethodName}: {ex}." // 所有异常日志统一使用此句式

 // ❌ 同一语义不同表达
@@ -199,7 +210,7 @@ $"Exception in {GetType().Name}.{MethodName}: {ex}." // 所有异常日志统一

 | # | 规则 | 正确示例 | 错误示例 |
 |---|------|---------|---------|
-| 1 | 字符串变量值加单引号 | `'{bundleGUID}'` | `{bundleGUID}` |
+| 1 | 字符串变量值加单引号 | `'{bundleGuid}'` | `{bundleGuid}` |
 | 2 | 数值变量不加引号 | `{count}` | `'{count}'` |
 | 3 | 类型名作主语不加引号 | `TypeName is not ...` | `'TypeName' is not ...` |
 | 4 | 异常对象不加引号 | `{ex.Message}` | `'{ex.Message}'` |
--- a/Assets/YooAsset/Docs/注释规范.md
+++ b/Assets/YooAsset/Docs/注释规范.md
@@ -21,7 +21,6 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（
 | `<summary>` | 简要描述类型或成员的功能 | 所有公共类型和成员 |
 | `<param>` | 描述方法参数 | 方法、构造函数 |
 | `<returns>` | 描述方法返回值 | 有返回值的方法 |
-| `<exception>` | 说明可能抛出的异常 | 可能抛出异常的方法 |
 | `<remarks>` | 补充说明，提供额外细节 | 需要详细解释的成员 |
 | `<value>` | 描述属性所代表的值 | 属性 |

@@ -41,7 +40,6 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（
 | `<para>` | 在 `<remarks>` 等标签内分段 |
 | `<list>` | 创建列表或表格 |
 | `<code>` | 多行代码示例 |
-| `<c>` | 行内代码片段 |
 | `<example>` | 包含使用示例 |

 ### 2.4 泛型与继承标签
@@ -71,13 +69,15 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（
 |----------|---------|---------|
 | 类 / 结构 | `<summary>` | `<remarks>`、`<typeparam>` |
 | 接口 | `<summary>` | `<remarks>` |
-| 方法 | `<summary>`、`<param>`、`<returns>` | `<exception>`、`<remarks>`、`<example>` |
-| 构造函数 | `<summary>`、`<param>` | `<exception>` |
-| 属性 | `<summary>` | `<value>`、`<exception>` |
+| 方法 | `<summary>`、`<param>`、`<returns>` | `<remarks>`、`<example>` |
+| 构造函数 | `<summary>`、`<param>` | — |
+| 属性 | `<summary>` | `<value>` |
 | 事件 | `<summary>` | `<remarks>` |
 | 枚举类型 | `<summary>` | — |
 | 枚举值 | `<summary>` | — |
 | 委托 | `<summary>`、`<param>`、`<returns>` | — |
+| 接口实现成员 | `<inheritdoc/>` | — |
+| override 方法 | **不添加**注释 | — |

 ---

@@ -89,17 +89,46 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（

 ✔️ 以**第三人称动词**开头。

-✔️ 完整语句末尾**建议**使用句号，短语式描述可省略。
+✔️ 句号规则：注释内容含逗号、分号等分句标点时，末尾**加**句号；纯短语**不加**句号。
+
+```csharp
+// ✔️ 含逗号 → 加句号
+/// <param name="timeout">超时时间（秒），0 表示不限制。</param>
+/// <returns>下载结果，包含状态码和错误信息。</returns>
+
+// ✔️ 纯短语 → 不加句号
+/// <param name="url">资源包的完整下载地址</param>
+/// <returns>初始化操作句柄</returns>
+```

 ❌ **禁止**重复方法名或参数类型中已表达的信息。

+❌ **禁止**在注释中重复方法命名后缀已表达的语义。常见后缀包括：
+
+| 命名后缀 | 已表达的语义 | 注释中禁止使用 |
+|----------|------------|--------------|
+| `Async` | 异步执行 | "异步" |
+| `Internal` | 内部实现 | "内部" |
+
 ❌ **禁止**以"这个方法"、"该类"等冗余前缀开头。

-### 4.2 常见动词约定
+### 4.2 常见开头约定
+
+#### 属性 —— 描述值本身，不加动词前缀
+
+属性的 `{ get; }` / `{ get; set; }` 访问器已表达读写语义，summary 应直接描述**值的含义**，避免用"获取"、"获取或设置"等动词前缀重复已知信息。
+
+| 属性类型 | 推荐写法 | 反例 |
+|----------|---------|------|
+| 只读属性 | 名词短语，如 "错误信息" | ~~"获取错误信息"~~ |
+| 可读写属性 | 名词短语，如 "当前下载进度" | ~~"获取或设置当前下载进度"~~ |
+| 返回 bool 的属性 | "是否……"，如 "是否为只读缓存" | ~~"判断是否为只读缓存"~~ |
+
+#### 方法 —— 以动词开头

 | 成员类型 | 推荐开头动词 |
 |----------|-------------|
-| 返回 bool 的方法 / 属性 | "检查是否"、"判断是否" |
+| 返回 bool 的方法 | "检查是否"、"判断是否" |
 | 获取类方法 | "获取"、"查询" |
 | 设置类方法 | "设置"、"更新" |
 | 创建类方法 | "创建"、"构建"、"生成" |
@@ -112,8 +141,6 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（

 ✔️ 说明有效范围和边界值（如为 `null` 时的行为、取值范围）。

-✔️ 完整语句末尾**建议**使用句号，短语式描述可省略。
-
 ❌ **禁止**仅重复参数名或类型名，如"url 参数"。

 ### 4.4 `<returns>` 书写规范
@@ -122,13 +149,25 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（

 ✔️ 说明**特殊返回值**的含义（如返回 `null` 表示未找到）。

-### 4.5 `<exception>` 书写规范
+### 4.5 `<remarks>` 书写规范

-✔️ 指定异常的**具体类型**（`cref` 属性）。
+✔️ 多行内容**必须**用 `<para>` 包裹每段，否则 IDE 会将多行合并显示为一行。

-✔️ 说明异常的**触发条件**。
+```csharp
+// ✔️ 好：每段用 <para> 包裹
+/// <remarks>
+/// <para>下载并加载 Unity AssetBundle 资源包</para>
+/// <para>支持 Unity 内置缓存机制和 CRC 校验</para>
+/// </remarks>

-✔️ 使用 `<paramref>` 引用相关参数。
+// ❌ 差：多行纯文本，IDE 显示时会合并为一行
+/// <remarks>
+/// 下载并加载 Unity AssetBundle 资源包
+/// 支持 Unity 内置缓存机制和 CRC 校验
+/// </remarks>
+```
+
+✔️ 单行内容可直接书写，无需 `<para>`。

 ---

@@ -141,8 +180,8 @@ C# 使用 XML 文档注释为代码提供结构化文档。编译器从 `///`（
 /// 资源包下载请求，负责管理单个资源包的下载生命周期。
 /// </summary>
 /// <remarks>
-/// <para>支持断点续传和失败重试。</para>
-/// <para>通过 <see cref="DownloadRetryController"/> 控制重试策略。</para>
+/// <para>支持断点续传和失败重试</para>
+/// <para>通过 <see cref="DownloadRetryController"/> 控制重试策略</para>
 /// </remarks>
 public class BundleDownloadRequest
 {
@@ -153,16 +192,12 @@ public class BundleDownloadRequest

 ```csharp
 /// <summary>
-/// 从指定 URL 异步下载资源包并保存到本地磁盘。
+/// 从指定 URL 下载资源包并保存到本地磁盘
 /// </summary>
-/// <param name="url">资源包的完整下载地址。</param>
-/// <param name="savePath">本地保存的目标路径。</param>
+/// <param name="url">资源包的完整下载地址</param>
+/// <param name="savePath">本地保存的目标路径</param>
 /// <param name="timeout">超时时间（秒），0 表示不限制。</param>
 /// <returns>下载结果，包含状态码和错误信息。</returns>
-/// <exception cref="ArgumentNullException">
-/// 当 <paramref name="url"/> 或 <paramref name="savePath"/> 为 <c>null</c> 时抛出。
-/// </exception>
-/// <exception cref="TimeoutException">当下载超过指定时间时抛出。</exception>
 public async Task<DownloadResult> DownloadAsync(string url, string savePath, int timeout = 30)
 {
 }
@@ -172,7 +207,7 @@ public async Task<DownloadResult> DownloadAsync(string url, string savePath, int

 ```csharp
 /// <summary>
-/// 获取当前下载进度。
+/// 当前下载进度
 /// </summary>
 /// <value>取值范围 0.0 ~ 1.0，其中 1.0 表示下载完成。</value>
 public float Progress { get; private set; }
@@ -182,7 +217,7 @@ public float Progress { get; private set; }

 ```csharp
 /// <summary>
-/// 下载任务的运行状态。
+/// 下载任务的运行状态
 /// </summary>
 public enum DownloadStatus
 {
@@ -192,17 +227,17 @@ public enum DownloadStatus
    Pending,

    /// <summary>
-    /// 正在下载中。
+    /// 正在下载中
    /// </summary>
    Downloading,

    /// <summary>
-    /// 下载已完成。
+    /// 下载已完成
    /// </summary>
    Completed,

    /// <summary>
-    /// 下载失败。
+    /// 下载失败
    /// </summary>
    Failed
 }
@@ -224,17 +259,17 @@ public class ObjectPool<T> where T : IDisposable

 ```csharp
 /// <summary>
-/// 定义下载请求的标准行为。
+/// 定义下载请求的标准行为
 /// </summary>
 public interface IDownloadRequest
 {
    /// <summary>
-    /// 获取请求的远程 URL。
+    /// 请求的远程 URL
    /// </summary>
    string URL { get; }

    /// <summary>
-    /// 取消当前下载请求。
+    /// 取消当前下载请求
    /// </summary>
    void Abort();
 }
@@ -242,6 +277,10 @@ public interface IDownloadRequest

 ### 5.7 使用 `<inheritdoc/>`

+#### 接口实现 —— 使用 `<inheritdoc/>`
+
+实现接口成员时，使用 `<inheritdoc/>` 继承接口中定义的文档：
+
 ```csharp
 public class MyDownloadRequest : IDownloadRequest
 {
@@ -255,14 +294,35 @@ public class MyDownloadRequest : IDownloadRequest
 }
 ```

+#### 基类继承（override） —— 不添加任何注释
+
+重写基类方法时，**不需要**添加任何 XML 文档注释（包括 `<inheritdoc/>`）。方法签名中的 `override` 关键字已明确表达继承关系，IDE 会自动展示基类文档。
+
+```csharp
+// ✔️ 好：override 方法不添加注释
+protected override void InternalStart()
+{
+}
+
+protected override void InternalUpdate()
+{
+}
+
+// ❌ 差：多余的 inheritdoc
+/// <inheritdoc/>
+protected override void InternalStart()
+{
+}
+```
+
 ### 5.8 使用 `<example>` 和 `<code>`

 ```csharp
 /// <summary>
-/// 根据资源路径异步加载资源对象。
+/// 根据资源路径加载资源对象
 /// </summary>
-/// <param name="assetPath">资源路径。</param>
-/// <returns>资源操作句柄，加载失败时资源对象为 <c>null</c>。</returns>
+/// <param name="assetPath">资源路径</param>
+/// <returns>资源操作句柄，加载失败时资源对象为 null。</returns>
 /// <example>
 /// 加载一个预制体：
 /// <code>
@@ -291,10 +351,10 @@ public void Download(string url, string savePath) { }

 // ✔️ 好：说明行为和目的
 /// <summary>
-/// 从远程服务器下载资源包并保存到本地磁盘。
+/// 从远程服务器下载资源包并保存到本地磁盘
 /// </summary>
-/// <param name="url">资源包的完整下载地址。</param>
-/// <param name="savePath">本地保存的目标路径。</param>
+/// <param name="url">资源包的完整下载地址</param>
+/// <param name="savePath">本地保存的目标路径</param>
 public void Download(string url, string savePath) { }
 ```

@@ -302,20 +362,36 @@ public void Download(string url, string savePath) { }

 ```csharp
 // ❌ 差：仅重复参数名
-/// <param name="name">名称。</param>
+/// <param name="name">名称</param>

 // ✔️ 好：说明含义和约束
-/// <param name="name">资源包的唯一标识名称，不可为 <c>null</c> 或空字符串。</param>
+/// <param name="name">资源包的唯一标识名称</param>
 ```

-### 6.3 缺少边界说明
+### 6.3 重复命名后缀
+
+```csharp
+// ❌ 差：方法名 Async 后缀已表达异步语义
+/// <summary>
+/// 异步加载资源对象
+/// </summary>
+public AssetHandle LoadAssetAsync(string location) { }
+
+// ✔️ 好：描述功能意图，不重复后缀语义
+/// <summary>
+/// 加载资源对象
+/// </summary>
+public AssetHandle LoadAssetAsync(string location) { }
+```
+
+### 6.4 缺少边界说明

 ```csharp
 // ❌ 差：未说明返回 null 的情况
-/// <returns>资源对象。</returns>
+/// <returns>资源对象</returns>

 // ✔️ 好：说明特殊返回值
-/// <returns>加载到的资源对象，如果资源不存在则返回 <c>null</c>。</returns>
+/// <returns>加载到的资源对象</returns>
 ```

 ---
@@ -350,4 +426,78 @@ if (count > maxCount)
 // 环形缓冲区写满后从头覆盖，避免无限增长
 if (count > maxCount)
    count = 0;
-```
+```
+
+---
+
+## 八、术语翻译映射表
+
+> 为保持注释用语统一，以下列出项目中常用英文类型/概念与其中文翻译的对应关系。
+> 撰写或审核注释时，请以此表为准。
+
+### 8.1 核心领域类型
+
+| 英文类型 / 概念 | 中文翻译 | 备注 |
+|-----------------|---------|------|
+| `PackageBundle` | 资源包描述 | 清单中的静态元数据（`Package*` = 描述） |
+| `PackageAsset` | 资源描述 | 清单中的静态元数据（`Package*` = 描述） |
+| `AssetInfo` | 资源信息 | 运行时上下文（`*Info` = 信息） |
+| `BundleInfo` | 资源包信息 | 运行时上下文（`*Info` = 信息） |
+| `ResourcePackage` | 资源包裹 | 顶层包裹容器 |
+| `PackageManifest` | 包裹清单 / 资源清单 | — |
+| `AssetBundle` | AssetBundle | Unity 引擎类型，保留英文 |
+| `RawBundle` | 原生资源包 | 非 AssetBundle 的原始文件 |
+
+### 8.2 文件系统与缓存
+
+| 英文类型 / 概念 | 中文翻译 | 备注 |
+|-----------------|---------|------|
+| `IFileSystem` | 文件系统 | — |
+| `IBundleCache` | 缓存系统 | — |
+| `ICacheEntry` | 缓存条目 | — |
+| `BundleGuid` | 资源包 GUID / Bundle 唯一标识 | — |
+| `ICacheEvictionPolicy` | 淘汰策略 | — |
+| `EvictionResult` | 淘汰结果 | — |
+
+### 8.3 下载与网络
+
+| 英文类型 / 概念 | 中文翻译 | 备注 |
+|-----------------|---------|------|
+| `IDownloadRequest` | 下载请求 | — |
+| `IDownloadBackend` | 下载后台 | — |
+| `IRemoteService` | 远端资源服务 | — |
+| `IDownloadRetryPolicy` | 下载重试策略 | — |
+| `IDownloadUrlPolicy` | URL 选择策略 | — |
+
+### 8.4 加密与解密
+
+| 英文类型 / 概念 | 中文翻译 | 备注 |
+|-----------------|---------|------|
+| `IBundleEncryptor` | 资源包加密器 | — |
+| `IBundleDecryptor` | 资源包解密器 | 基接口，需实现派生接口 |
+| `IManifestEncryptor` | 资源清单加密器 | — |
+| `IManifestDecryptor` | 资源清单解密器 | — |
+| `BundleEncryptArgs` | 加密操作的输入参数 | — |
+| `BundleDecryptArgs` | 解密操作的输入参数 | — |
+
+### 8.5 资源加载与句柄
+
+| 英文类型 / 概念 | 中文翻译 | 备注 |
+|-----------------|---------|------|
+| `IBundleHandle` | 资源包句柄 | — |
+| `AssetHandle` | 资源句柄 | — |
+| `RawFileHandle` | 原生文件句柄 | — |
+| `SubAssetsHandle` | 子资源句柄 | — |
+
+### 8.6 通用术语
+
+| 英文术语 | 中文翻译 | 备注 |
+|---------|---------|------|
+| Package | 包裹 | 项目级容器 |
+| Bundle | 资源包 | 构建产物单元 |
+| Asset | 资源 | 单个资源文件 |
+| Manifest | 清单 | — |
+| Handle | 句柄 | — |
+| Operation | 操作 / 异步操作 | — |
+| Scheduler | 调度器 | — |
+| Provider | 提供者 | — |
--- a/Assets/YooAsset/Docs/逻辑检测.md
+++ b/Assets/YooAsset/Docs/逻辑检测.md
@@ -0,0 +1,200 @@
+# 逻辑检测
+
+> **总则**：检查运行时代码的关键逻辑路径，确保宏分支、异步操作生命周期、参数完整性和资源释放均无遗漏。
+
+## 1. 宏包裹代码逻辑
+
+检查所有 `#if` / `#elif` / `#else` / `#endif` 包裹的代码：
+
+- 每个分支的变量赋值路径是否完整（不存在未赋值分支）
+- `#else` 兜底分支是否覆盖所有未列出的平台
+- 各分支之间的语义是否一致（同一变量在不同分支中的类型和用途是否相同）
+- 分支中引用的 API 是否与对应宏版本匹配（如 `UNITY_2020_3_OR_NEWER` 对应的 API）
+
+## 2. 子异步操作检查
+
+**定义**：通过 `AddChildOperation()` 添加的操作为子异步操作。
+
+### 2.1 同步等待传播
+
+如果类实现了 `InternalWaitForCompletion()` 方法，所有子异步操作必须在该方法中主动调用 `WaitForCompletion()`。
+
+```
+❌ 父操作实现了 InternalWaitForCompletion，但未对子操作调用 WaitForCompletion
+✅ 父操作在 InternalWaitForCompletion 中对每个子操作调用 WaitForCompletion()
+```
+
+### 2.2 更新驱动
+
+所有子异步操作必须在父操作的 `InternalUpdate()` 中主动调用 `UpdateOperation()`，确保子操作能被正常驱动。
+
+```
+❌ 子操作被 AddChildOperation 添加后，未在 InternalUpdate 中调用 UpdateOperation
+✅ 每个子操作在 InternalUpdate 中被调用 UpdateOperation()
+```
+
+## 3. 异步操作参数完整性
+
+检查所有 Operation 的 Options 在 `new` 的位置是否完整填充了所有成员字段。
+
+- 找到 Options 结构体的所有字段定义
+- 找到所有 `new XxxOptions(...)` 的调用点
+- 逐一比对构造参数是否覆盖了所有必填字段
+- 可选参数（有默认值）可以跳过
+
+```
+❌ new DownloadFileRequestOptions(url, savePath, timeout)  // 遗漏了 watchdogTimeout
+✅ new DownloadFileRequestOptions(url, savePath, timeout, watchdogTimeout)
+```
+
+## 4. 整数溢出与取模安全
+
+检查所有对 `int` 计数器执行 `%`（取模）运算的位置，确保不会因溢出产生负索引。
+
+- 只增不减的 `int` 计数器（如失败计数、轮转索引），溢出 `int.MaxValue` 后变为负数
+- 负数 `%` 正数在 C# 中结果为负数，用作数组/列表索引会触发 `ArgumentOutOfRangeException`
+- 使用 `& 0x7FFFFFFF` 清除符号位，保证结果始终为非负整数（.NET 中处理哈希取模的惯用手法）
+
+```
+❌ int index = _counter % list.Count;           // _counter 溢出后 index 为负
+✅ int index = (_counter & 0x7FFFFFFF) % list.Count;  // 始终非负
+```
+
+## 5. 下载请求资源释放
+
+### 5.1 IDownloadRequest 释放
+
+检查所有持有 `IDownloadRequest`（及其子接口）实例的 Operation，是否在 `InternalDispose()` 中调用了 `Dispose()` 释放资源。
+
+```
+❌ Operation 持有 IDownloadFileRequest 但未在 InternalDispose 中释放
+✅ protected override void InternalDispose() { _request?.Dispose(); }
+```
+
+### 5.2 下载数据完整性验证
+
+检查文件数据下载完成后，是否有容错或数据完整性验证：
+
+- 是否校验文件大小（下载字节数与预期是否一致）
+- 是否校验文件哈希（CRC / MD5 / SHA 等）
+- 如果无校验，是否有其他容错机制（如重试、回退）
+- 无任何验证且无容错机制的，标记为需要关注
+
+## 6. 计时方式一致性
+
+检查所有需要"测量经过时间"的逻辑，确保计时方式不会因帧率波动或 App 后台恢复而失真。
+
+- 使用 `Time.unscaledDeltaTime` 累加计时的方式，在 App 从后台恢复时会产生巨大 spike（一帧跨越几十秒），导致等待逻辑在单帧内被直接跳过
+- 同一系统内应保持计时方式统一，避免一处用绝对时间戳、另一处用帧增量
+- 推荐使用 `TimeUtility.RealtimeSinceStartup` 记录起止时间戳做差值判断
+
+```
+❌ _elapsed += Time.unscaledDeltaTime;  return _elapsed >= delay;   // 后台恢复时 spike 跳过等待
+✅ return TimeUtility.RealtimeSinceStartup - _startTime >= delay;   // 绝对时间戳，不受 spike 影响
+```
+
+## 7. 子类回调不得覆写基类已确定的状态
+
+检查所有基类定义的"成功/失败回调"（如 `OnRequestSucceeded`、`OnRequestFailed`），子类在重写时不应直接修改基类已确定的 `Status`。
+
+- 基类在调用回调前已设置 `Status = Succeeded`，若子类在回调中将其改为 `Failed`，后续基类逻辑可能与实际状态不一致
+- 回调应仅负责提取结果或设置错误信息，状态转换应由基类统一控制
+- 推荐将回调签名改为返回 `bool`（或通过 out 参数传递错误），基类根据返回值决定最终状态
+
+```
+❌ protected override void OnRequestSucceeded()
+   {
+       if (result == null) Status = Failed;   // 子类直接覆写基类已确定的 Succeeded 状态
+   }
+✅ protected override bool OnRequestSucceeded()
+   {
+       if (result == null) { Error = "..."; return false; }   // 返回 false，由基类设置 Failed
+       return true;
+   }
+```
+
+## 8. 结构体不可变性检测
+
+> 依据：[类型设计准则](2.类型设计准则.md) — "❌ **禁止**定义可变值类型" / "✔️ 声明不可变值类型时使用 `readonly struct` 修饰符"
+
+检查所有 `struct` 定义，**必须**声明为 `readonly struct`。存在可变 struct 即为违规。
+
+检测要点：
+
+- `struct` 声明缺少 `readonly` 修饰符
+- 属性使用 `{ get; set; }` 而非 `{ get; }`
+- 公共字段未声明为 `readonly`
+- 缺少构造函数（依赖默认值逐字段赋值的模式）
+
+```
+❌ struct MutableConfig
+   {
+       public int Timeout { get; set; }   // 可变属性
+       public string Name { get; set; }
+   }
+
+✅ readonly struct ImmutableConfig
+   {
+       public int Timeout { get; }        // 只读属性
+       public string Name { get; }
+       public ImmutableConfig(int timeout, string name)
+       {
+           Timeout = timeout;
+           Name = name;
+       }
+   }
+```
+
+**禁止可变 struct 的原因**：
+
+- 值类型按值复制，可变成员修改作用于副本而非原值，极易产生静默 bug
+- `readonly` 字段持有可变 struct 时，编译器每次访问都会产生防御性复制，造成不必要的性能开销
+- `readonly struct` 从根源上杜绝以上两类问题
+
+## 9. 文件系统禁止重写 GetHashCode
+
+检查所有 `IFileSystem` 实现类，确认未重写 `GetHashCode()` 或 `Equals()`。
+
+`BundleInfo.GetCombineKey()` 依赖 `RuntimeHelpers.GetHashCode(_fileSystem)` 获取基于引用标识的哈希值，用于下载器合并时的去重判断。如果文件系统实现类重写了 `GetHashCode()`，虽然 `RuntimeHelpers.GetHashCode` 本身不受影响，但会暗示该类型有自定义相等性语义，可能导致其他使用 `GetHashCode()` 的位置产生非预期的碰撞。
+
+检测要点：
+
+- `IFileSystem` 实现类中存在 `override int GetHashCode()` 声明
+- `IFileSystem` 实现类中存在 `override bool Equals(object)` 声明
+
+```
+❌ class SandboxFileSystem : IFileSystem
+   {
+       public override int GetHashCode() => PackageName.GetHashCode();  // 破坏引用标识语义
+   }
+
+✅ class SandboxFileSystem : IFileSystem
+   {
+       // 不重写 GetHashCode，保持 object 默认的引用标识行为
+   }
+```
+
+## 10. 不可变结构体命名参数检测
+
+检测所有 `readonly struct` 构造函数调用中**位置参数 > 3 个**的位置，确认是否使用命名参数提高可读性。
+
+`readonly struct` 只能通过构造函数一次性传入所有字段，参数数量通常较多，且参数顺序是唯一区分手段。同类型参数相邻时，顺序错误不会产生编译错误，容易引入静默 bug。
+
+重点检查以下场景：
+
+- 构造函数参数 > 3 个
+- 多个同类型参数相邻（如连续多个 `bool`、`int`、接口类型）
+- 参数名与属性名高度对应，使用命名参数可消除歧义
+
+```
+❌ new Configuration(60, true, level, decryptor, backend, retryPolicy, urlPolicy);
+
+✅ new Configuration(
+       watchdogTimeout: 60,
+       disableUnityWebCache: true,
+       downloadVerifyLevel: level,
+       assetBundleDecryptor: decryptor,
+       downloadBackend: backend,
+       downloadRetryPolicy: retryPolicy,
+       downloadUrlPolicy: urlPolicy);
+```
--- a/Assets/YooAsset/Docs/逻辑检测.md.meta
+++ b/Assets/YooAsset/Docs/逻辑检测.md.meta
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 200087470392cf24ebdd0efac8e44210
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildParameters.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildParameters.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.IO;
 using System.Collections;
 using System.Collections.Generic;
@@ -146,7 +146,7 @@ namespace YooAsset.Editor
                string message = BuildLogger.GetErrorMessage(ErrorCode.BuildPipelineIsNullOrEmpty, "Build pipeline is null or empty !");
                throw new Exception(message);
            }
-            if (BuildBundleType == (int)EBundleType.Unknown)
+            if (BuildBundleType == (int)EBundleType.None)
            {
                string message = BuildLogger.GetErrorMessage(ErrorCode.BuildBundleTypeIsUnknown, $"Build bundle type is unknown {BuildBundleType} !");
                throw new Exception(message);
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCopyBuildinFiles.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCopyBuildinFiles.cs
@@ -54,8 +54,8 @@ namespace YooAsset.Editor
            {
                foreach (var packageBundle in manifest.BundleList)
                {
-                    string sourcePath = $"{packageOutputDirectory}/{packageBundle.FileName}";
-                    string destPath = $"{buildinRootDirectory}/{packageBundle.FileName}";
+                    string sourcePath = $"{packageOutputDirectory}/{packageBundle.GetFileName()}";
+                    string destPath = $"{buildinRootDirectory}/{packageBundle.GetFileName()}";
                    EditorTools.CopyFile(sourcePath, destPath, true);
                }
            }
@@ -68,8 +68,8 @@ namespace YooAsset.Editor
                {
                    if (packageBundle.HasAnyTag(tags) == false)
                        continue;
-                    string sourcePath = $"{packageOutputDirectory}/{packageBundle.FileName}";
-                    string destPath = $"{buildinRootDirectory}/{packageBundle.FileName}";
+                    string sourcePath = $"{packageOutputDirectory}/{packageBundle.GetFileName()}";
+                    string destPath = $"{buildinRootDirectory}/{packageBundle.GetFileName()}";
                    EditorTools.CopyFile(sourcePath, destPath, true);
                }
            }
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateManifest.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateManifest.cs
@@ -35,7 +35,7 @@ namespace YooAsset.Editor
            manifest.EnableAddressable = buildMapContext.Command.EnableAddressable;
            manifest.SupportExtensionless = buildMapContext.Command.SupportExtensionless;
            manifest.LocationToLower = buildMapContext.Command.LocationToLower;
-            manifest.IncludeAssetGUID = buildMapContext.Command.IncludeAssetGUID;
+            manifest.IncludeAssetGuid = buildMapContext.Command.IncludeAssetGUID;
            manifest.ReplaceAssetPathWithAddress = replaceAssetPathWithAddress;
            manifest.OutputNameStyle = (int)buildParameters.FileNameStyle;
            manifest.BuildBundleType = buildParameters.BuildBundleType;
@@ -152,7 +152,7 @@ namespace YooAsset.Editor
                    PackageAsset packageAsset = new PackageAsset();
                    packageAsset.Address = buildMapContext.Command.EnableAddressable ? assetInfo.Address : string.Empty;
                    packageAsset.AssetPath = assetInfo.AssetInfo.AssetPath;
-                    packageAsset.AssetGUID = buildMapContext.Command.IncludeAssetGUID ? assetInfo.AssetInfo.AssetGUID : string.Empty;
+                    packageAsset.AssetGuid = buildMapContext.Command.IncludeAssetGUID ? assetInfo.AssetInfo.AssetGUID : string.Empty;
                    packageAsset.AssetTags = assetInfo.AssetTags.ToArray();
                    packageAsset.EditorUserData = assetInfo;
                    result.Add(packageAsset);
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateReport.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateReport.cs
@@ -102,7 +102,7 @@ namespace YooAsset.Editor
            {
                ReportBundleInfo reportBundleInfo = new ReportBundleInfo();
                reportBundleInfo.BundleName = packageBundle.BundleName;
-                reportBundleInfo.FileName = packageBundle.FileName;
+                reportBundleInfo.FileName = packageBundle.GetFileName();
                reportBundleInfo.FileHash = packageBundle.FileHash;
                reportBundleInfo.FileCRC = packageBundle.FileCrc;
                reportBundleInfo.FileSize = packageBundle.FileSize;
--- a/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskEncryption.cs
+++ b/Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskEncryption.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Linq;
 using System.IO;
 using System.Collections;
@@ -24,15 +24,14 @@ namespace YooAsset.Editor
            string pipelineOutputDirectory = buildParametersContext.GetPipelineOutputDirectory();
            foreach (var bundleInfo in buildMapContext.Collection)
            {
-                BundleEncryptArgs args = new BundleEncryptArgs();
-                args.BundleName = bundleInfo.BundleName;
-                args.FilePath = $"{pipelineOutputDirectory}/{bundleInfo.BundleName}";
+                string filePath = $"{pipelineOutputDirectory}/{bundleInfo.BundleName}";
+                var args = new BundleEncryptArgs(bundleInfo.BundleName, filePath);
                var encryptResult = encryptionServices.Encrypt(args);
-                if (encryptResult.Encrypted)
+                if (encryptResult.IsEncrypted)
                {
-                    string filePath = $"{pipelineOutputDirectory}/{bundleInfo.BundleName}.encrypt";
+                    string encryptedFilePath = $"{pipelineOutputDirectory}/{bundleInfo.BundleName}.encrypt";
                    FileUtility.WriteAllBytes(filePath, encryptResult.EncryptedFileData);
-                    bundleInfo.EncryptedFilePath = filePath;
+                    bundleInfo.EncryptedFilePath = encryptedFilePath;
                    bundleInfo.Encrypted = true;
                    BuildLogger.Log($"Bundle file encryption complete: {filePath}");
                }
--- a/Assets/YooAsset/Editor/AssetBundleDebugger/AssetBundleDebuggerWindow.cs
+++ b/Assets/YooAsset/Editor/AssetBundleDebugger/AssetBundleDebuggerWindow.cs
@@ -1,4 +1,4 @@
-#if UNITY_2019_4_OR_NEWER
+#if UNITY_2019_4_OR_NEWER
 using System;
 using System.Collections.Generic;
 using UnityEditor;
@@ -255,7 +255,7 @@ namespace YooAsset.Editor
        {
            // 发送采集数据的命令
            DiagnosticCommand command = new DiagnosticCommand();
-            command.CommandType = (int)EDiagnosticCommandType.AutoSampling;
+            command.CommandType = EDiagnosticCommandType.AutoSampling;
            command.Parameter = evt.newValue ? "open" : "close";
            byte[] data = DiagnosticCommand.Serialize(command);
            EditorConnection.instance.Send(DiagnosticSystemConsts.EditorToPlayerMessageId, data);
@@ -266,7 +266,7 @@ namespace YooAsset.Editor
        {
            // 发送采集数据的命令
            DiagnosticCommand command = new DiagnosticCommand();
-            command.CommandType = (int)EDiagnosticCommandType.SampleOnce;
+            command.CommandType = EDiagnosticCommandType.SampleOnce;
            command.Parameter = string.Empty;
            byte[] data = DiagnosticCommand.Serialize(command);
            EditorConnection.instance.Send(DiagnosticSystemConsts.EditorToPlayerMessageId, data);
--- a/Assets/YooAsset/Editor/AssetBundleDebugger/VisualViewers/DebuggerAssetListViewer.cs
+++ b/Assets/YooAsset/Editor/AssetBundleDebugger/VisualViewers/DebuggerAssetListViewer.cs
@@ -379,7 +379,9 @@ namespace YooAsset.Editor
            var sourceDatas = new List<ITableData>(providerInfo.Dependencies.Count);
            foreach (var bundleName in providerInfo.Dependencies)
            {
-                var dependBundleInfo = packageData.GetBundleInfo(bundleName);
+                if (packageData.TryGetBundleInfo(bundleName, out var dependBundleInfo) == false)
+                    continue;
+
                var rowData = new DependTableData();
                rowData.BundleInfo = dependBundleInfo;
                rowData.AddStringValueCell("DependBundles", dependBundleInfo.BundleName);
--- a/Assets/YooAsset/Editor/AssetBundleDebugger/VisualViewers/DebuggerBundleListViewer.cs
+++ b/Assets/YooAsset/Editor/AssetBundleDebugger/VisualViewers/DebuggerBundleListViewer.cs
@@ -468,7 +468,9 @@ namespace YooAsset.Editor
                var sourceDatas = new List<ITableData>(1000);
                foreach (string referenceBundleName in selectBundleInfo.Referencers)
                {
-                    var bundleInfo = packageData.GetBundleInfo(referenceBundleName);
+                    if (packageData.TryGetBundleInfo(referenceBundleName, out var bundleInfo) == false)
+                        continue;
+
                    var rowData = new ReferenceTableData();
                    rowData.BundleInfo = bundleInfo;
                    rowData.AddStringValueCell("BundleName", bundleInfo.BundleName);
--- a/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationBase.cs
+++ b/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationBase.cs
@@ -33,10 +33,10 @@ namespace YooAsset
        internal bool IsWaitForCompletion { get; private set; }

        /// <summary>
-        /// 判断当前帧时间切片是否已用完
+        /// 当前帧时间切片是否已用完
        /// </summary>
        /// <remarks>
-        /// 同步等待时始终返回 false，以确保操作能持续执行直到完成
+        /// 同步等待时始终返回 false，以确保操作能持续执行直到完成。
        /// </remarks>
        protected bool IsBusy
        {
@@ -73,7 +73,7 @@ namespace YooAsset
        public float Progress { get; protected set; }

        /// <summary>
-        /// 判断异步操作是否已结束
+        /// 异步操作是否已结束
        /// </summary>
        public bool IsDone
        {
@@ -103,7 +103,7 @@ namespace YooAsset
        /// 异步操作的完成事件
        /// </summary>
        /// <remarks>
-        /// 若注册时操作已完成，回调将立即执行
+        /// 若注册时操作已完成，回调将立即执行。
        /// </remarks>
        public event Action<AsyncOperationBase> Completed
        {
@@ -119,7 +119,7 @@ namespace YooAsset
                    }
                    catch (Exception ex)
                    {
-                        YooLogger.Error($"Exception in completion callback: {ex}.");
+                        YooLogger.LogError($"Exception in completion callback: {ex}.");
                    }
                }
                else
@@ -178,7 +178,7 @@ namespace YooAsset
                {
                    _error = $"Operation '{GetType().Name}' did not complete during synchronous wait.";
                    _status = EOperationStatus.Failed;
-                    YooLogger.Error(_error);
+                    YooLogger.LogError(_error);
                }

                // 注意：强制收尾，确保Task能完成
@@ -209,7 +209,7 @@ namespace YooAsset
                    // 内部逻辑抛出异常一律视为该异步任务失败。
                    _error = ex.ToString();
                    _status = EOperationStatus.Failed;
-                    YooLogger.Error($"Exception in {GetType().Name}.InternalStart: {ex}.");
+                    YooLogger.LogError($"Exception in {GetType().Name}.InternalStart: {ex}.");
                }

                // 注意：同步完成的操作立即收尾
@@ -243,7 +243,7 @@ namespace YooAsset
                    // 内部逻辑抛出异常一律视为该异步任务失败。
                    _error = ex.ToString();
                    _status = EOperationStatus.Failed;
-                    YooLogger.Error($"Exception in {GetType().Name}.InternalUpdate: {ex}.");
+                    YooLogger.LogError($"Exception in {GetType().Name}.InternalUpdate: {ex}.");
                }
            }

@@ -271,7 +271,7 @@ namespace YooAsset
                InternalAbort();
                _error = "Operation was aborted.";
                _status = EOperationStatus.Failed;
-                YooLogger.Warning($"Async operation '{GetType().Name}' has been aborted.");
+                YooLogger.LogWarning($"Async operation '{GetType().Name}' has been aborted.");
            }

            // 注意：强制收尾，确保Task能完成
@@ -316,7 +316,7 @@ namespace YooAsset
        /// 内部同步等待方法（子类可选实现）
        /// </summary>
        /// <remarks>
-        /// 默认抛出异常，子类应重写以支持同步等待
+        /// 默认抛出异常，子类应重写以支持同步等待。
        /// </remarks>
        protected virtual void InternalWaitForCompletion()
        {
@@ -327,7 +327,6 @@ namespace YooAsset
        /// <summary>
        /// 将操作标记为成功完成
        /// </summary>
-        /// <exception cref="InvalidOperationException">操作已处于终结状态时抛出</exception>
        protected void SetResult()
        {
            if (IsDone)
@@ -340,7 +339,6 @@ namespace YooAsset
        /// 将操作标记为失败
        /// </summary>
        /// <param name="error">错误描述</param>
-        /// <exception cref="InvalidOperationException">操作已处于终结状态时抛出</exception>
        protected void SetError(string error)
        {
            if (IsDone)
@@ -350,6 +348,22 @@ namespace YooAsset
            _status = EOperationStatus.Failed;
        }

+        /// <summary>
+        /// 计算多阶段操作的整体进度
+        /// </summary>
+        /// <param name="stageIndex">当前阶段索引（从0开始）</param>
+        /// <param name="stageCount">阶段总数</param>
+        /// <param name="remaining">当前阶段剩余工作量</param>
+        /// <param name="total">当前阶段总工作量</param>
+        /// <returns>返回归一化的整体进度值（0-1）</returns>
+        protected float CalculateMultiStageProgress(int stageIndex, int stageCount, int remaining, int total)
+        {
+            if (total <= 0)
+                return (stageIndex + 1f) / stageCount;
+            float stageProgress = 1f - remaining / (float)total;
+            return (stageIndex + stageProgress) / stageCount;
+        }
+
        /// <summary>
        /// 添加子任务
        /// </summary>
@@ -391,7 +405,7 @@ namespace YooAsset
                throw new YooInternalException("Child operation is null.");

            if (_children.Contains(child) == false)
-                throw new YooInternalException($"Child operation '{child.GetType().Name}' was not found.");
+                throw new YooInternalException($"Child operation '{child.GetType().Name}' not found.");
 #endif

            _children.Remove(child);
@@ -411,7 +425,7 @@ namespace YooAsset
        /// <summary>
        /// 批量执行一定次数的更新逻辑
        /// </summary>
-        /// <param name="count">最大执行次数，默认1000次</param>
+        /// <param name="count">最大执行次数，默认1000次。</param>
        /// <remarks>
        /// 用于需要快速完成但又不想完全阻塞主线程的场景
        /// </remarks>
@@ -438,7 +452,7 @@ namespace YooAsset
        /// </summary>
        /// <param name="sleepMilliseconds">每次循环后的休眠时长（毫秒）</param>
        /// <remarks>
-        /// 该方法会阻塞调用线程，每次更新之间会短暂休眠以避免占满 CPU
+        /// 该方法会阻塞调用线程，每次更新之间会短暂休眠以避免占满 CPU。
        /// </remarks>
        protected void ExecuteUntilComplete(int sleepMilliseconds = 1)
        {
@@ -475,7 +489,7 @@ namespace YooAsset
                }
                catch (Exception ex)
                {
-                    YooLogger.Error($"Exception in {GetType().Name}.InternalDispose: {ex}.");
+                    YooLogger.LogError($"Exception in {GetType().Name}.InternalDispose: {ex}.");
                }

                InvokeCompletedCallbacks();
@@ -495,7 +509,7 @@ namespace YooAsset
                }
                catch (Exception ex)
                {
-                    YooLogger.Error($"Exception in completion callback: {ex}.");
+                    YooLogger.LogError($"Exception in completion callback: {ex}.");
                }
                _completedCallback = null;
            }
@@ -510,7 +524,7 @@ namespace YooAsset
                    }
                    catch (Exception ex)
                    {
-                        YooLogger.Error($"Exception in completion callback: {ex}.");
+                        YooLogger.LogError($"Exception in completion callback: {ex}.");
                    }
                }
                _completedCallbackList = null;
--- a/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationScheduler.cs
+++ b/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationScheduler.cs
@@ -47,7 +47,7 @@ namespace YooAsset
        /// <summary>
        /// 创建异步操作调度器实例
        /// </summary>
-        /// <param name="packageName">所属包裹的名称。</param>
+        /// <param name="packageName">所属包裹的名称</param>
        /// <param name="creationOrder">创建顺序，用于同优先级时的稳定排序。</param>
        public AsyncOperationScheduler(string packageName, int creationOrder)
        {
@@ -60,7 +60,7 @@ namespace YooAsset
        /// </summary>
        /// <param name="operation">要启动的异步操作</param>
        /// <remarks>
-        /// 操作立即启动，下一次 Update 时合并到执行队列
+        /// 操作立即启动，下一次 Update 时合并到执行队列。
        /// </remarks>
        public void StartOperation(AsyncOperationBase operation)
        {
@@ -146,7 +146,7 @@ namespace YooAsset
        /// <summary>
        /// 获取调试信息
        /// </summary>
-        /// <returns>包含所有运行中和待处理操作的诊断信息列表。</returns>
+        /// <returns>包含所有运行中和待处理操作的诊断信息列表</returns>
        public List<DiagnosticOperationInfo> GetDiagnosticInfos()
        {
            int totalCount = _runningOperations.Count + _pendingOperations.Count;
--- a/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationSystem.cs
+++ b/Assets/YooAsset/Runtime/AsyncOperation/AsyncOperationSystem.cs
@@ -6,7 +6,7 @@ using System.Diagnostics;
 namespace YooAsset
 {
    /// <summary>
-    /// 异步操作系统，负责管理所有包裹的调度器
+    /// 异步操作系统，负责管理所有包裹的调度器。
    /// </summary>
    internal static class AsyncOperationSystem
    {
@@ -40,7 +40,7 @@ namespace YooAsset
        /// </summary>
        /// <value>最小值为 <see cref="MinTimeSlice"/> 毫秒，低于此值将被自动钳制。</value>
        /// <remarks>
-        /// 设置过小会导致每帧可执行的操作极少，影响整体加载速度
+        /// 设置过小会导致每帧可执行的操作极少，影响整体加载速度。
        /// </remarks>
        public static long MaxTimeSlice
        {
@@ -53,7 +53,7 @@ namespace YooAsset
                if (value < MinTimeSlice)
                {
                    _maxTimeSlice = MinTimeSlice;
-                    YooLogger.Warning($"MaxTimeSlice must be at least {MinTimeSlice} ms, clamped to {MinTimeSlice}.");
+                    YooLogger.LogWarning($"MaxTimeSlice must be at least {MinTimeSlice} ms, clamped to {MinTimeSlice}.");
                }
                else
                {
@@ -63,7 +63,7 @@ namespace YooAsset
        }

        /// <summary>
-        /// 判断当前帧的时间切片预算是否已用完
+        /// 当前帧的时间切片预算是否已用完
        /// </summary>
        public static bool IsBusy
        {
@@ -88,7 +88,7 @@ namespace YooAsset
        {
            if (_isInitialized)
            {
-                YooLogger.Warning("Operation system is already initialized.");
+                YooLogger.LogWarning("Operation system is already initialized.");
                return;
            }

@@ -232,7 +232,7 @@ namespace YooAsset
        /// 设置指定包裹调度器的优先级
        /// </summary>
        /// <param name="packageName">包裹名称</param>
-        /// <param name="priority">优先级，值越大越优</param>
+        /// <param name="priority">优先级，值越大越优。</param>
        public static void SetSchedulerPriority(string packageName, uint priority)
        {
            DebugCheckInitialized(packageName);
@@ -245,7 +245,7 @@ namespace YooAsset
        /// 获取指定包裹调度器的优先级
        /// </summary>
        /// <param name="packageName">包裹名称</param>
-        /// <returns>调度器的当前优先级。</returns>
+        /// <returns>调度器的当前优先级</returns>
        public static uint GetSchedulerPriority(string packageName)
        {
            DebugCheckInitialized(packageName);
@@ -272,8 +272,8 @@ namespace YooAsset
        /// <summary>
        /// 获取指定包裹中所有操作的诊断信息
        /// </summary>
-        /// <param name="packageName">包裹名称。</param>
-        /// <returns>该包裹下所有操作的诊断信息列表。</returns>
+        /// <param name="packageName">包裹名称</param>
+        /// <returns>该包裹下所有操作的诊断信息列表</returns>
        internal static List<DiagnosticOperationInfo> GetDiagnosticInfos(string packageName)
        {
            DebugCheckInitialized(packageName);
--- a/Assets/YooAsset/Runtime/AsyncOperation/OperationAwaiter.cs
+++ b/Assets/YooAsset/Runtime/AsyncOperation/OperationAwaiter.cs
@@ -27,7 +27,7 @@ namespace YooAsset
        /// 获取操作结果
        /// </summary>
        /// <remarks>
-        /// 业务失败不视为异常，此处不抛出异常
+        /// 业务失败不视为异常，此处不抛出异常。
        /// </remarks>
        public void GetResult()
        {
@@ -45,4 +45,4 @@ namespace YooAsset
            _operation.Completed += (op) => continuation();
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Interfaces/EvictionResult.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Interfaces/EvictionResult.cs
@@ -7,56 +7,51 @@ namespace YooAsset
    /// </summary>
    internal readonly struct EvictionResult
    {
+        private readonly bool _initialized;
+
        /// <summary>
        /// 错误信息
        /// </summary>
-        public readonly string Error;
+        public string Error { get; }

        /// <summary>
        /// 需要清理的资源标识符集合
        /// </summary>
-        public readonly List<string> BundleGUIDs;
+        public IReadOnlyList<string> BundleGuids { get; }

        /// <summary>
-        /// 是否成功
+        /// 是否执行成功
        /// </summary>
        public bool Succeeded
        {
-            get { return Error == null; }
+            get { return _initialized && Error == null; }
        }

-        /// <summary>
-        /// 创建失败结果
-        /// </summary>
-        public EvictionResult(string error)
+        private EvictionResult(string error, IReadOnlyList<string> bundleGuids)
        {
+            _initialized = true;
            Error = error;
-            BundleGUIDs = null;
+            BundleGuids = bundleGuids;
        }

        /// <summary>
-        /// 创建成功结果
+        /// 创建表示执行成功的淘汰结果
        /// </summary>
-        public EvictionResult(List<string> bundleGUIDs)
+        /// <param name="bundleGuids">需要清理的资源包标识符列表</param>
+        /// <returns>携带待清理列表的成功结果</returns>
+        public static EvictionResult CreateSuccess(IReadOnlyList<string> bundleGuids)
        {
-            Error = null;
-            BundleGUIDs = bundleGUIDs;
+            return new EvictionResult(null, bundleGuids);
        }

        /// <summary>
-        /// 创建成功结果
+        /// 创建表示执行失败的淘汰结果
        /// </summary>
-        public static EvictionResult Success(List<string> bundleGUIDs)
+        /// <param name="error">描述失败原因的错误信息</param>
+        /// <returns>携带错误信息的失败结果</returns>
+        public static EvictionResult CreateFailure(string error)
        {
-            return new EvictionResult(bundleGUIDs);
-        }
-
-        /// <summary>
-        /// 创建失败结果
-        /// </summary>
-        public static EvictionResult Failure(string error)
-        {
-            return new EvictionResult(error);
+            return new EvictionResult(error, null);
        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Interfaces/IBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Interfaces/IBundleCache.cs
@@ -18,7 +18,7 @@ namespace YooAsset
        string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        bool IsReadOnly { get; }

@@ -34,33 +34,44 @@ namespace YooAsset


        /// <summary>
-        /// 初始化文件缓存系统
+        /// 初始化缓存系统
        /// </summary>
+        /// <returns>初始化异步操作对象</returns>
        BCInitializeOperation InitializeAsync();

        /// <summary>
-        /// 写入缓存文件
+        /// 将资源包数据写入缓存
        /// </summary>
+        /// <param name="options">写入操作的配置参数</param>
+        /// <returns>写入缓存异步操作对象</returns>
        BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options);

        /// <summary>
-        /// 清理缓存文件
+        /// 清理符合淘汰策略的缓存文件
        /// </summary>
+        /// <param name="options">清理操作的配置参数</param>
+        /// <returns>清理缓存异步操作对象</returns>
        BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options);

        /// <summary>
-        /// 验证缓存文件
+        /// 验证缓存文件的完整性
        /// </summary>
+        /// <param name="options">验证操作的配置参数</param>
+        /// <returns>验证缓存异步操作对象</returns>
        BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options);

        /// <summary>
-        /// 加载资源包
+        /// 加载指定资源包
        /// </summary>
+        /// <param name="options">加载操作的配置参数</param>
+        /// <returns>加载资源包异步操作对象</returns>
        BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options);

        /// <summary>
-        /// 是否已缓存指定 Bundle
+        /// 检查指定资源包是否已存在于缓存中
        /// </summary>
-        bool IsCached(string bundleGUID);
+        /// <param name="bundleGuid">资源包的唯一标识符</param>
+        /// <returns>如果缓存中存在该资源包则返回 true，否则返回 false。</returns>
+        bool IsCached(string bundleGuid);
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Interfaces/ICacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Interfaces/ICacheEntry.cs
@@ -7,8 +7,8 @@ namespace YooAsset
    internal interface ICacheEntry
    {
        /// <summary>
-        /// Bundle唯一标识
+        /// Bundle 唯一标识
        /// </summary>
-        string BundleGUID { get; }
+        string BundleGuid { get; }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Interfaces/ICacheEvictionPolicy.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Interfaces/ICacheEvictionPolicy.cs
@@ -8,8 +8,11 @@ namespace YooAsset
    internal interface ICacheEvictionPolicy
    {
        /// <summary>
-        /// 根据策略从缓存条目中选出需要清理的 BundleGUID 列表
+        /// 选出需要清理的 BundleGuid 列表
        /// </summary>
+        /// <param name="cacheEntries">当前全部缓存条目的只读集合</param>
+        /// <param name="options">缓存清理的配置参数</param>
+        /// <returns>包含待清理 BundleGuid 列表的执行结果，失败时携带错误信息。</returns>
        EvictionResult SelectEvictionTargets(IReadOnlyCollection<ICacheEntry> cacheEntries, BCClearCacheOptions options);
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCClearCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCClearCacheOperation.cs
@@ -11,14 +11,22 @@ namespace YooAsset
    /// <summary>
    /// 清理缓存完成操作
    /// </summary>
-    internal class BCClearCacheCompleteOperation : BCClearCacheOperation
+    internal sealed class BCClearCacheCompleteOperation : BCClearCacheOperation
    {
        private readonly string _error;

+        /// <summary>
+        /// 创建清理缓存完成操作实例
+        /// </summary>
        public BCClearCacheCompleteOperation()
        {
            _error = null;
        }
+
+        /// <summary>
+        /// 创建清理缓存完成操作实例
+        /// </summary>
+        /// <param name="error">错误信息</param>
        public BCClearCacheCompleteOperation(string error)
        {
            _error = error;
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCClearCacheOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCClearCacheOptions.cs
@@ -4,21 +4,28 @@ namespace YooAsset
    /// <summary>
    /// 清理缓存操作选项
    /// </summary>
-    internal struct BCClearCacheOptions
+    internal readonly struct BCClearCacheOptions
    {
        /// <summary>
        /// 清理方式
        /// </summary>
-        public string ClearMethod { get; set; }
+        public string ClearMethod { get; }

        /// <summary>
        /// 附加参数
        /// </summary>
-        public object ClearParameter { get; set; }
+        public object ClearParameter { get; }

        /// <summary>
        /// 资源清单
        /// </summary>
-        public PackageManifest Manifest { get; set; }
+        public PackageManifest Manifest { get; }
+
+        public BCClearCacheOptions(string clearMethod, object clearParameter, PackageManifest manifest)
+        {
+            ClearMethod = clearMethod;
+            ClearParameter = clearParameter;
+            Manifest = manifest;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCLoadBundleOperation.cs
@@ -6,6 +6,9 @@ namespace YooAsset
    /// </summary>
    internal abstract class BCLoadBundleOperation : AsyncOperationBase
    {
+        /// <summary>
+        /// 资源包加载的内部结果
+        /// </summary>
        protected readonly struct LoadResult
        {
            /// <summary>
@@ -14,22 +17,32 @@ namespace YooAsset
            public readonly string Error;

            /// <summary>
-            /// 是否成功
+            /// 加载是否成功
            /// </summary>
            public bool Succeeded
            {
                get { return Error == null; }
            }

-            public LoadResult(string error)
+            private LoadResult(string error)
            {
                Error = error;
            }

+            /// <summary>
+            /// 创建表示加载成功的默认结果
+            /// </summary>
+            /// <returns>不携带错误信息的成功结果</returns>
            public static LoadResult Default()
            {
                return new LoadResult(null);
            }
+
+            /// <summary>
+            /// 创建表示加载失败的结果
+            /// </summary>
+            /// <param name="error">错误信息</param>
+            /// <returns>携带错误信息的失败结果</returns>
            public static LoadResult Failure(string error)
            {
                return new LoadResult(error);
@@ -49,6 +62,10 @@ namespace YooAsset
    {
        private readonly string _error;

+        /// <summary>
+        /// 创建加载资源包错误操作实例
+        /// </summary>
+        /// <param name="error">错误信息</param>
        internal BCLoadBundleErrorOperation(string error)
        {
            _error = error;
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCLoadBundleOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCLoadBundleOptions.cs
@@ -7,10 +7,14 @@ namespace YooAsset
    internal readonly struct BCLoadBundleOptions
    {
        /// <summary>
-        /// 资源包
+        /// 要加载的资源包
        /// </summary>
-        public readonly PackageBundle Bundle;
+        public PackageBundle Bundle { get; }

+        /// <summary>
+        /// 创建加载资源包操作选项实例
+        /// </summary>
+        /// <param name="bundle">要加载的资源包描述</param>
        public BCLoadBundleOptions(PackageBundle bundle)
        {
            Bundle = bundle;
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCVerifyCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCVerifyCacheOperation.cs
@@ -11,14 +11,23 @@ namespace YooAsset
    /// <summary>
    /// 验证缓存完成操作
    /// </summary>
-    internal class BCVerifyCacheCompleteOperation : BCVerifyCacheOperation
+    internal sealed class BCVerifyCacheCompleteOperation : BCVerifyCacheOperation
    {
        private readonly string _error;
        
+
+        /// <summary>
+        /// 创建验证缓存完成操作实例
+        /// </summary>
        public BCVerifyCacheCompleteOperation()
        {
            _error = null;
        }
+
+        /// <summary>
+        /// 创建验证缓存完成操作实例
+        /// </summary>
+        /// <param name="error">错误信息</param>
        public BCVerifyCacheCompleteOperation(string error)
        {
            _error = error;
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCVerifyCacheOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCVerifyCacheOptions.cs
@@ -4,16 +4,22 @@ namespace YooAsset
    /// <summary>
    /// 验证缓存操作选项
    /// </summary>
-    internal struct BCVerifyCacheOptions
+    internal readonly struct BCVerifyCacheOptions
    {
        /// <summary>
        /// 要验证的资源包
        /// </summary>
-        public PackageBundle Bundle { get; set; }
+        public PackageBundle Bundle { get; }

        /// <summary>
        /// 失败后直接移除缓存条目
        /// </summary>
-        public bool DeleteCacheEntryOnFailure { get; set; }
+        public bool DeleteCacheEntryOnFailure { get; }
+
+        public BCVerifyCacheOptions(PackageBundle bundle, bool deleteCacheEntryOnFailure)
+        {
+            Bundle = bundle;
+            DeleteCacheEntryOnFailure = deleteCacheEntryOnFailure;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCWriteCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCWriteCacheOperation.cs
@@ -11,14 +11,22 @@ namespace YooAsset
    /// <summary>
    /// 写入缓存完成操作
    /// </summary>
-    internal class BCWriteCacheCompleteOperation : BCWriteCacheOperation
+    internal sealed class BCWriteCacheCompleteOperation : BCWriteCacheOperation
    {
        private readonly string _error;

+        /// <summary>
+        /// 创建写入缓存完成操作实例
+        /// </summary>
        public BCWriteCacheCompleteOperation()
        {
            _error = null;
        }
+
+        /// <summary>
+        /// 创建写入缓存完成操作实例
+        /// </summary>
+        /// <param name="error">错误信息</param>
        public BCWriteCacheCompleteOperation(string error)
        {
            _error = error;
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/BCWriteCacheOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/BCWriteCacheOptions.cs
@@ -4,21 +4,28 @@ namespace YooAsset
    /// <summary>
    /// 写入缓存操作选项
    /// </summary>
-    internal struct BCWriteCacheOptions
+    internal readonly struct BCWriteCacheOptions
    {
        /// <summary>
        /// 要缓存的资源包
        /// </summary>
-        public PackageBundle Bundle { get; set; }
+        public PackageBundle Bundle { get; }

        /// <summary>
        /// 要缓存的文件路径
        /// </summary>
-        public string FilePath { get; set; }
+        public string FilePath { get; }

        /// <summary>
        /// 要缓存的文件数据（可选）
        /// </summary>
-        public byte[] FileData { get; set; }
+        public byte[] FileData { get; }
+
+        public BCWriteCacheOptions(PackageBundle bundle, string filePath, byte[] fileData = null)
+        {
+            Bundle = bundle;
+            FilePath = filePath;
+            FileData = fileData;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadBuiltinCatalogOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadBuiltinCatalogOperation.cs
@@ -28,6 +28,10 @@ namespace YooAsset
        /// </summary>
        public BuiltinCatalog Catalog;

+        /// <summary>
+        /// 创建加载内置资源目录操作实例
+        /// </summary>
+        /// <param name="options">加载内置资源目录的配置选项</param>
        internal LoadBuiltinCatalogOperation(LoadBuiltinCatalogOptions options)
        {
            _options = options;
@@ -69,7 +73,10 @@ namespace YooAsset
                if (_downloadBytesRequest == null)
                {
                    string url = DownloadUrlHelper.ToLocalFileUrl(_options.FilePath);
-                    var args = new DownloadDataRequestArgs(url, 60, 0);
+                    var args = new DownloadDataRequestArgs(
+                        url: url,
+                        timeout: 60,
+                        watchdogTimeout: 0);
                    _downloadBytesRequest = _options.DownloadBackend.CreateBytesRequest(args);
                    _downloadBytesRequest.SendRequest();
                }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadBuiltinCatalogOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadBuiltinCatalogOptions.cs
@@ -4,21 +4,28 @@ namespace YooAsset
    /// <summary>
    /// 加载内置资源目录操作选项
    /// </summary>
-    internal struct LoadBuiltinCatalogOptions
+    internal readonly struct LoadBuiltinCatalogOptions
    {
        /// <summary>
        /// 包裹名称
        /// </summary>
-        public string PackageName { get; set; }
+        public string PackageName { get; }

        /// <summary>
        /// 文件路径
        /// </summary>
-        public string FilePath {  get; set; }
+        public string FilePath { get; }

        /// <summary>
        /// 下载后台
        /// </summary>
-        public IDownloadBackend DownloadBackend { get; set; }
+        public IDownloadBackend DownloadBackend { get; }
+
+        public LoadBuiltinCatalogOptions(string packageName, string filePath, IDownloadBackend downloadBackend)
+        {
+            PackageName = packageName;
+            FilePath = filePath;
+            DownloadBackend = downloadBackend;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalAssetBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalAssetBundleOperation.cs
@@ -6,7 +6,7 @@ namespace YooAsset
    /// <summary>
    /// 从本地文件加载 AssetBundle 操作
    /// </summary>
-    internal class LoadLocalAssetBundleOperation : BCLoadBundleOperation
+    internal sealed class LoadLocalAssetBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -27,6 +27,10 @@ namespace YooAsset
        /// </summary>
        public bool UnityEngineLoadFailed { get; private set; } = false;

+        /// <summary>
+        /// 创建本地 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="options">从本地加载 AssetBundle 的配置选项</param>
        public LoadLocalAssetBundleOperation(LoadLocalAssetBundleOptions options)
        {
            _options = options;
@@ -95,7 +99,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 强制挂起主线程（注意：该操作会很耗时）
-                        YooLogger.Warning("Suspending the main thread to load Unity bundle.");
+                        YooLogger.LogWarning("Suspending the main thread to load Unity bundle.");
                        _assetBundle = _createRequest.assetBundle;
                    }
                    else
@@ -135,10 +139,11 @@ namespace YooAsset
        }
        private LoadResult LoadFromFileWithOffset(IBundleOffsetDecryptor decryptor)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _options.Bundle;
-            args.FilePath = _options.FilePath;
-            ulong offset = (ulong)decryptor.GetFileOffset(args);
+            var args = new BundleDecryptArgs(_options.Bundle, null, _options.FilePath);
+            long rawOffset = decryptor.GetFileOffset(args);
+            if (rawOffset < 0)
+                return LoadResult.Failure($"{_options.CacheName} decryptor returned negative offset: {rawOffset}.");
+            ulong offset = (ulong)rawOffset;

            if (IsWaitForCompletion)
                _assetBundle = AssetBundle.LoadFromFile(_options.FilePath, 0, offset);
@@ -149,9 +154,7 @@ namespace YooAsset
        }
        private LoadResult LoadFromMemory(IBundleMemoryDecryptor decryptor)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _options.Bundle;
-            args.FilePath = _options.FilePath;
+            var args = new BundleDecryptArgs(_options.Bundle, null, _options.FilePath);
            var binaryData = decryptor.GetDecryptedData(args);
            if (binaryData == null)
                return LoadResult.Failure($"{_options.CacheName} decryptor returned null data.");
@@ -165,9 +168,7 @@ namespace YooAsset
        }
        private LoadResult LoadFromStream(IBundleStreamDecryptor decryptor)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _options.Bundle;
-            args.FilePath = _options.FilePath;
+            var args = new BundleDecryptArgs(_options.Bundle, null, _options.FilePath);
            uint bufferSize = (uint)decryptor.GetBufferSize(args);
            _loadStream = decryptor.CreateDecryptionStream(args);
            if (_loadStream == null)
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalAssetBundleOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalAssetBundleOptions.cs
@@ -4,27 +4,35 @@ namespace YooAsset
    /// <summary>
    /// 加载 AssetBundle 的上下文信息
    /// </summary>
-    internal struct LoadLocalAssetBundleOptions
+    internal readonly struct LoadLocalAssetBundleOptions
    {
        /// <summary>
        /// 文件缓存名称
        /// </summary>
-        public string CacheName { get; set; }
+        public string CacheName { get; }

        /// <summary>
-        /// 资源包信息
+        /// 资源包描述
        /// </summary>
-        public PackageBundle Bundle { get; set; }
+        public PackageBundle Bundle { get; }

        /// <summary>
        /// 文件加载路径
        /// </summary>
-        public string FilePath { get; set; }
+        public string FilePath { get; }

        /// <summary>
        /// AssetBundle 解密器
        /// </summary>
-        public IBundleDecryptor AssetBundleDecryptor { get; set; }
+        public IBundleDecryptor AssetBundleDecryptor { get; }
+
+        public LoadLocalAssetBundleOptions(string cacheName, PackageBundle bundle, string filePath, IBundleDecryptor assetBundleDecryptor)
+        {
+            CacheName = cacheName;
+            Bundle = bundle;
+            FilePath = filePath;
+            AssetBundleDecryptor = assetBundleDecryptor;
+        }
    }
 }

--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalRawBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalRawBundleOperation.cs
@@ -6,7 +6,7 @@ namespace YooAsset
    /// <summary>
    /// 从本地加载 RawBundle 操作
    /// </summary>
-    internal class LoadLocalRawBundleOperation : BCLoadBundleOperation
+    internal sealed class LoadLocalRawBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -16,10 +16,14 @@ namespace YooAsset
            Done,
        }

-        protected readonly LoadLocalRawBundleOptions _options;
+        private readonly LoadLocalRawBundleOptions _options;
        private RawBundle _rawBundle;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建本地 RawBundle 加载操作实例
+        /// </summary>
+        /// <param name="options">从本地加载 RawBundle 的配置选项</param>
        public LoadLocalRawBundleOperation(LoadLocalRawBundleOptions options)
        {
            _options = options;
@@ -44,7 +48,13 @@ namespace YooAsset
                        return;
                    }

-                    LoadFromFile();
+                    LoadResult result = LoadFromFile();
+                    if (result.Succeeded == false)
+                    {
+                        _steps = ESteps.Done;
+                        SetError(result.Error);
+                        return;
+                    }
                }
                else
                {
@@ -99,16 +109,22 @@ namespace YooAsset
            ExecuteBatch();
        }

-        private void LoadFromFile()
+        private LoadResult LoadFromFile()
        {
-            byte[] data = File.ReadAllBytes(_options.FilePath);
-            _rawBundle = new RawBundle(data);
+            try
+            {
+                byte[] data = File.ReadAllBytes(_options.FilePath);
+                _rawBundle = new RawBundle(data);
+                return LoadResult.Default();
+            }
+            catch (Exception ex)
+            {
+                return LoadResult.Failure($"Failed to read raw bundle file: {ex.Message}.");
+            }
        }
        private LoadResult LoadFromMemory(IBundleMemoryDecryptor decryptor)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _options.Bundle;
-            args.FilePath = _options.FilePath;
+            var args = new BundleDecryptArgs(_options.Bundle, null, _options.FilePath);
            var binaryData = decryptor.GetDecryptedData(args);
            if (binaryData == null)
                return LoadResult.Failure($"{_options.CacheName} decryptor returned null data.");
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalRawBundleOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadLocalRawBundleOptions.cs
@@ -4,26 +4,34 @@ namespace YooAsset
    /// <summary>
    /// 加载 RawBundle 的上下文信息
    /// </summary>
-    internal struct LoadLocalRawBundleOptions
+    internal readonly struct LoadLocalRawBundleOptions
    {
        /// <summary>
        /// 文件缓存名称
        /// </summary>
-        public string CacheName { get; set; }
+        public string CacheName { get; }

        /// <summary>
-        /// 资源包信息
+        /// 资源包描述
        /// </summary>
-        public PackageBundle Bundle { get; set; }
+        public PackageBundle Bundle { get; }

        /// <summary>
        /// 文件加载路径
        /// </summary>
-        public string FilePath { get; set; }
+        public string FilePath { get; }

        /// <summary>
        /// RawBundle 解密器
        /// </summary>
-        public IBundleDecryptor RawBundleDecryptor { get; set; }
+        public IBundleDecryptor RawBundleDecryptor { get; }
+
+        public LoadLocalRawBundleOptions(string cacheName, PackageBundle bundle, string filePath, IBundleDecryptor rawBundleDecryptor)
+        {
+            CacheName = cacheName;
+            Bundle = bundle;
+            FilePath = filePath;
+            RawBundleDecryptor = rawBundleDecryptor;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadWebAssetBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadWebAssetBundleOperation.cs
@@ -12,7 +12,7 @@ namespace YooAsset
    /// <summary>
    /// 从网络加载未加密 AssetBundle 操作
    /// </summary>
-    internal class LoadWebNormalAssetBundleOperation : LoadWebAssetBundleOperation
+    internal sealed class LoadWebNormalAssetBundleOperation : LoadWebAssetBundleOperation
    {
        private enum ESteps
        {
@@ -28,6 +28,10 @@ namespace YooAsset
        private IDownloadAssetBundleRequest _downloadAssetBundleRequest;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建网络未加密 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="options">从网络加载 AssetBundle 的配置选项</param>
        public LoadWebNormalAssetBundleOperation(LoadWebAssetBundleOptions options)
        {
            _options = options;
@@ -47,7 +51,13 @@ namespace YooAsset
            if (_steps == ESteps.BundleRequest)
            {
                string url = GetRequestUrl();
-                var args = new DownloadAssetBundleRequestArgs(url, 0, _options.WatchdogTimeout, _options.DisableUnityWebCache, _options.Bundle.FileHash, _options.Bundle.UnityCrc);
+                var args = new DownloadAssetBundleRequestArgs(
+                    url: url,
+                    timeout: 0,
+                    watchdogTimeout: _options.WatchdogTimeout,
+                    disableUnityWebCache: _options.DisableUnityWebCache,
+                    fileHash: _options.Bundle.FileHash,
+                    unityCrc: _options.Bundle.UnityCrc);
                _downloadAssetBundleRequest = _options.DownloadBackend.CreateAssetBundleRequest(args);
                _downloadAssetBundleRequest.SendRequest();
                _steps = ESteps.CheckRequest;
@@ -66,7 +76,7 @@ namespace YooAsset
                    if (assetBundle == null)
                    {
                        _steps = ESteps.Done;
-                        SetError($"Fatal error: downloaded asset bundle is null.");
+                        SetError("Downloaded asset bundle is null.");
                    }
                    else
                    {
@@ -128,7 +138,7 @@ namespace YooAsset
    /// <summary>
    /// 从网络加载加密的 AssetBundle 操作
    /// </summary>
-    internal class LoadWebEncryptedAssetBundleOperation : LoadWebAssetBundleOperation
+    internal sealed class LoadWebEncryptedAssetBundleOperation : LoadWebAssetBundleOperation
    {
        private enum ESteps
        {
@@ -149,6 +159,10 @@ namespace YooAsset
        private AssetBundleCreateRequest _createRequest;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建网络加密 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="options">从网络加载 AssetBundle 的配置选项</param>
        public LoadWebEncryptedAssetBundleOperation(LoadWebAssetBundleOptions options)
        {
            _options = options;
@@ -179,7 +193,10 @@ namespace YooAsset
                {
                    _decryptor = decryptor as IBundleMemoryDecryptor;
                    string url = GetRequestUrl();
-                    var args = new DownloadDataRequestArgs(url, 0, _options.WatchdogTimeout);
+                    var args = new DownloadDataRequestArgs(
+                        url: url,
+                        timeout: 0,
+                        watchdogTimeout: _options.WatchdogTimeout);
                    _downloadBytesRequest = _options.DownloadBackend.CreateBytesRequest(args);
                    _downloadBytesRequest.SendRequest();
                    _steps = ESteps.CheckRequest;
@@ -231,7 +248,7 @@ namespace YooAsset
                else if (_options.DownloadVerifyLevel == EFileVerifyLevel.High)
                    verifyResult = FileVerifyHelper.VerifyFile(_downloadBytesRequest.Result, _options.Bundle.FileSize, _options.Bundle.FileCrc);
                else
-                    throw new System.NotImplementedException(_options.DownloadVerifyLevel.ToString());
+                    throw new YooInternalException($"Unexpected verify level: {_options.DownloadVerifyLevel}.");

                if (verifyResult == EFileVerifyResult.Succeed)
                {
@@ -240,7 +257,7 @@ namespace YooAsset
                else
                {
                    string error = $"[WebBundleVerify] Verify failed. Url: '{_downloadBytesRequest.Url}' Level: {_options.DownloadVerifyLevel} Result: {verifyResult}.";
-                    YooLogger.Warning(error);
+                    YooLogger.LogWarning(error);

                    if (IsWaitForCompletion == false && _downloadRetryController.HasRetriesRemaining())
                    {
@@ -314,9 +331,7 @@ namespace YooAsset

        private LoadResult LoadFromMemory(IBundleMemoryDecryptor decryptor, byte[] fileData)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _options.Bundle;
-            args.FileData = fileData;
+            var args = new BundleDecryptArgs(_options.Bundle, fileData, null);
            var binaryData = decryptor.GetDecryptedData(args);
            if (binaryData == null)
                return LoadResult.Failure($"{_options.CacheName} decryptor returned null data.");
--- a/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadWebAssetBundleOptions.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Operations/Common/LoadWebAssetBundleOptions.cs
@@ -5,56 +5,70 @@ namespace YooAsset
    /// <summary>
    /// 加载 AssetBundle 的上下文信息
    /// </summary>
-    internal struct LoadWebAssetBundleOptions
+    internal readonly struct LoadWebAssetBundleOptions
    {
        /// <summary>
        /// 文件缓存名称
        /// </summary>
-        public string CacheName { get; set; }
+        public string CacheName { get; }

        /// <summary>
-        /// 资源包信息
+        /// 资源包描述
        /// </summary>
-        public PackageBundle Bundle { get; set; }
+        public PackageBundle Bundle { get; }

        /// <summary>
        /// 候选下载地址列表
        /// </summary>
-        public IReadOnlyList<string> CandidateUrls { get; set; }
+        public IReadOnlyList<string> CandidateUrls { get; }

        /// <summary>
        /// AssetBundle 解密器
        /// </summary>
-        public IBundleDecryptor AssetBundleDecryptor { get; set; }
+        public IBundleDecryptor AssetBundleDecryptor { get; }

        /// <summary>
        /// 下载后台接口
        /// </summary>
-        public IDownloadBackend DownloadBackend { get; set; }
+        public IDownloadBackend DownloadBackend { get; }

        /// <summary>
        /// 下载数据校验级别
        /// </summary>
-        public EFileVerifyLevel DownloadVerifyLevel { get; set; }
+        public EFileVerifyLevel DownloadVerifyLevel { get; }

        /// <summary>
        /// 看门狗超时时间
        /// </summary>
-        public int WatchdogTimeout { get; set; }
+        public int WatchdogTimeout { get; }

        /// <summary>
        /// 禁用Unity的网络缓存
        /// </summary>
-        public bool DisableUnityWebCache { get; set; }
+        public bool DisableUnityWebCache { get; }

        /// <summary>
        /// 下载重试判定策略
        /// </summary>
-        public IDownloadRetryPolicy DownloadRetryPolicy { get; set; }
+        public IDownloadRetryPolicy DownloadRetryPolicy { get; }

        /// <summary>
        /// URL 选择策略
        /// </summary>
-        public IDownloadUrlPolicy DownloadUrlPolicy { get; set; }
+        public IDownloadUrlPolicy DownloadUrlPolicy { get; }
+
+        public LoadWebAssetBundleOptions(string cacheName, PackageBundle bundle, IReadOnlyList<string> candidateUrls, IBundleDecryptor assetBundleDecryptor, IDownloadBackend downloadBackend, EFileVerifyLevel downloadVerifyLevel, int watchdogTimeout, bool disableUnityWebCache, IDownloadRetryPolicy downloadRetryPolicy, IDownloadUrlPolicy downloadUrlPolicy)
+        {
+            CacheName = cacheName;
+            Bundle = bundle;
+            CandidateUrls = candidateUrls;
+            AssetBundleDecryptor = assetBundleDecryptor;
+            DownloadBackend = downloadBackend;
+            DownloadVerifyLevel = downloadVerifyLevel;
+            WatchdogTimeout = watchdogTimeout;
+            DisableUnityWebCache = disableUnityWebCache;
+            DownloadRetryPolicy = downloadRetryPolicy;
+            DownloadUrlPolicy = downloadUrlPolicy;
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionAllPolicy.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionAllPolicy.cs
@@ -10,12 +10,12 @@ namespace YooAsset
        /// <inheritdoc />
        public EvictionResult SelectEvictionTargets(IReadOnlyCollection<ICacheEntry> cacheEntries, BCClearCacheOptions options)
        {
-            var bundleGUIDs = new List<string>(cacheEntries.Count);
+            var bundleGuids = new List<string>(cacheEntries.Count);
            foreach (var entry in cacheEntries)
            {
-                bundleGUIDs.Add(entry.BundleGUID);
+                bundleGuids.Add(entry.BundleGuid);
            }
-            return EvictionResult.Success(bundleGUIDs);
+            return EvictionResult.CreateSuccess(bundleGuids);
        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionByLocationsPolicy.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionByLocationsPolicy.cs
@@ -14,9 +14,9 @@ namespace YooAsset
        public EvictionResult SelectEvictionTargets(IReadOnlyCollection<ICacheEntry> cacheEntries, BCClearCacheOptions options)
        {
            if (options.Manifest == null)
-                return EvictionResult.Failure("Active package manifest not found.");
+                return EvictionResult.CreateFailure("Active package manifest not found.");
            if (options.ClearParameter == null)
-                return EvictionResult.Failure("Clear param is null.");
+                return EvictionResult.CreateFailure("Clear param is null.");

            string[] locations;
            if (options.ClearParameter is string str)
@@ -26,19 +26,19 @@ namespace YooAsset
            else if (options.ClearParameter is string[] array)
                locations = array;
            else
-                return EvictionResult.Failure($"Invalid clear param: {options.ClearParameter.GetType().FullName}");
+                return EvictionResult.CreateFailure($"Invalid clear param: {options.ClearParameter.GetType().FullName}");

-            var bundleGUIDs = new List<string>(locations.Length);
+            var bundleGuids = new List<string>(locations.Length);
            foreach (var location in locations)
            {
                string assetPath = options.Manifest.TryMappingToAssetPath(location);
                if (options.Manifest.TryGetPackageAsset(assetPath, out PackageAsset packageAsset))
                {
                    PackageBundle bundle = options.Manifest.GetMainPackageBundle(packageAsset.BundleID);
-                    bundleGUIDs.Add(bundle.BundleGuid);
+                    bundleGuids.Add(bundle.BundleGuid);
                }
            }
-            return EvictionResult.Success(bundleGUIDs);
+            return EvictionResult.CreateSuccess(bundleGuids);
        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionByTagsPolicy.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionByTagsPolicy.cs
@@ -14,9 +14,9 @@ namespace YooAsset
        public EvictionResult SelectEvictionTargets(IReadOnlyCollection<ICacheEntry> cacheEntries, BCClearCacheOptions options)
        {
            if (options.Manifest == null)
-                return EvictionResult.Failure("Active package manifest not found.");
+                return EvictionResult.CreateFailure("Active package manifest not found.");
            if (options.ClearParameter == null)
-                return EvictionResult.Failure("Clear param is null.");
+                return EvictionResult.CreateFailure("Clear param is null.");

            string[] tags;
            if (options.ClearParameter is string str)
@@ -26,18 +26,18 @@ namespace YooAsset
            else if (options.ClearParameter is string[] array)
                tags = array;
            else
-                return EvictionResult.Failure($"Invalid clear param: {options.ClearParameter.GetType().FullName}");
+                return EvictionResult.CreateFailure($"Invalid clear param: {options.ClearParameter.GetType().FullName}");

-            var bundleGUIDs = new List<string>(cacheEntries.Count);
+            var bundleGuids = new List<string>(cacheEntries.Count);
            foreach (var entry in cacheEntries)
            {
-                if (options.Manifest.TryGetPackageBundleByBundleGUID(entry.BundleGUID, out PackageBundle bundle))
+                if (options.Manifest.TryGetPackageBundleByBundleGuid(entry.BundleGuid, out PackageBundle bundle))
                {
                    if (bundle.HasAnyTag(tags))
-                        bundleGUIDs.Add(bundle.BundleGuid);
+                        bundleGuids.Add(bundle.BundleGuid);
                }
            }
-            return EvictionResult.Success(bundleGUIDs);
+            return EvictionResult.CreateSuccess(bundleGuids);
        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionUnusedPolicy.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Policies/EvictionUnusedPolicy.cs
@@ -11,17 +11,17 @@ namespace YooAsset
        public EvictionResult SelectEvictionTargets(IReadOnlyCollection<ICacheEntry> cacheEntries, BCClearCacheOptions options)
        {
            if (options.Manifest == null)
-                return EvictionResult.Failure("Active package manifest not found.");
+                return EvictionResult.CreateFailure("Active package manifest not found.");

-            var bundleGUIDs = new List<string>(cacheEntries.Count);
+            var bundleGuids = new List<string>(cacheEntries.Count);
            foreach (var entry in cacheEntries)
            {
-                if (options.Manifest.ContainsBundle(entry.BundleGUID) == false)
+                if (options.Manifest.ContainsBundle(entry.BundleGuid) == false)
                {
-                    bundleGUIDs.Add(entry.BundleGUID);
+                    bundleGuids.Add(entry.BundleGuid);
                }
            }
-            return EvictionResult.Success(bundleGUIDs);
+            return EvictionResult.CreateSuccess(bundleGuids);
        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinBundleCache.cs
@@ -4,29 +4,36 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 内置文件缓存系统，用于管理 StreamingAssets 中的资源包
+    /// 内置文件缓存系统，用于管理 StreamingAssets 中的资源包。
    /// </summary>
    internal class BuiltinBundleCache : IBundleCache
    {
        /// <summary>
        /// 内置文件缓存配置
        /// </summary>
-        internal struct Configuration
+        internal readonly struct Configuration
        {
            /// <summary>
            /// AssetBundle 解密器
            /// </summary>
-            public IBundleDecryptor AssetBundleDecryptor { get; set; }
+            public IBundleDecryptor AssetBundleDecryptor { get; }

            /// <summary>
            /// RawBundle 解密器
            /// </summary>
-            public IBundleDecryptor RawBundleDecryptor { get; set; }
+            public IBundleDecryptor RawBundleDecryptor { get; }

            /// <summary>
            /// 下载后台
            /// </summary>
-            public IDownloadBackend DownloadBackend { get; set; }
+            public IDownloadBackend DownloadBackend { get; }
+
+            public Configuration(IBundleDecryptor assetBundleDecryptor, IBundleDecryptor rawBundleDecryptor, IDownloadBackend downloadBackend)
+            {
+                AssetBundleDecryptor = assetBundleDecryptor;
+                RawBundleDecryptor = rawBundleDecryptor;
+                DownloadBackend = downloadBackend;
+            }
        }

        private readonly Dictionary<string, BuiltinBundleCacheEntry> _cacheEntries = new Dictionary<string, BuiltinBundleCacheEntry>(10000);
@@ -48,7 +55,7 @@ namespace YooAsset
        public string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        public bool IsReadOnly { get; }

@@ -88,62 +95,64 @@ namespace YooAsset
        {
        }
        /// <inheritdoc />
-        public virtual BCInitializeOperation InitializeAsync()
+        public BCInitializeOperation InitializeAsync()
        {
            var operation = new BBCInitializeOperation(this);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
+        public BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
        {
            var operation = new BCWriteCacheCompleteOperation($"{nameof(BuiltinBundleCache)} is readonly.");
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
+        public BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
        {
            var operation = new BCClearCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
+        public BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
        {
            var operation = new BCVerifyCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
+        public BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
        {
-            if (options.Bundle.BundleType == (int)EBundleType.AssetBundle)
+            if (options.Bundle.GetBundleType() == (int)EBundleType.AssetBundle)
            {
                var operation = new BBCLoadAssetBundleOperation(this, options.Bundle);
                return operation;
            }
-            else if (options.Bundle.BundleType == (int)EBundleType.RawBundle)
+            else if (options.Bundle.GetBundleType() == (int)EBundleType.RawBundle)
            {
                var operation = new BBCLoadRawBundleOperation(this, options.Bundle);
                return operation;
            }
            else
            {
-                string error = $"{nameof(BuiltinBundleCache)} does not support bundle type: {options.Bundle.BundleType}.";
+                string error = $"{nameof(BuiltinBundleCache)} does not support bundle type: {options.Bundle.GetBundleType()}.";
                var operation = new BCLoadBundleErrorOperation(error);
                return operation;
            }
        }
        /// <inheritdoc />
-        public virtual bool IsCached(string bundleGUID)
+        public bool IsCached(string bundleGuid)
        {
-            return _cacheEntries.ContainsKey(bundleGUID);
+            return _cacheEntries.ContainsKey(bundleGuid);
        }

        #region 内部方法
        /// <summary>
        /// 获取指定缓存条目
        /// </summary>
-        internal BuiltinBundleCacheEntry GetEntry(string bundleGUID)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <returns>对应的内置缓存条目</returns>
+        internal BuiltinBundleCacheEntry GetEntry(string bundleGuid)
        {
-            if (_cacheEntries.TryGetValue(bundleGUID, out BuiltinBundleCacheEntry entry))
+            if (_cacheEntries.TryGetValue(bundleGuid, out BuiltinBundleCacheEntry entry))
                return entry;
            else
                return null;
@@ -152,21 +161,24 @@ namespace YooAsset
        /// <summary>
        /// 添加指定缓存条目
        /// </summary>
-        internal void AddEntry(string bundleGUID, BuiltinBundleCacheEntry cacheEntry)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <param name="cacheEntry">内置缓存条目</param>
+        internal void AddEntry(string bundleGuid, BuiltinBundleCacheEntry cacheEntry)
        {
-            if (_cacheEntries.ContainsKey(bundleGUID))
-                throw new YooInternalException($"Cache entry already exists: '{bundleGUID}'.");
+            if (_cacheEntries.ContainsKey(bundleGuid))
+                throw new YooInternalException($"Cache entry already exists: '{bundleGuid}'.");

-            _cacheEntries.Add(bundleGUID, cacheEntry);
+            _cacheEntries.Add(bundleGuid, cacheEntry);
        }

        /// <summary>
        /// 获取Catalog文件加载路径
        /// </summary>
+        /// <returns>完整加载路径</returns>
        internal string GetCatalogBinaryFileLoadPath()
        {
            return PathUtility.Combine(RootPath, BuiltinCatalogConsts.BinaryFileName);
        }
        #endregion
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinBundleCacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinBundleCacheEntry.cs
@@ -9,7 +9,7 @@ namespace YooAsset
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 资源包文件路径
@@ -17,13 +17,13 @@ namespace YooAsset
        public string FilePath { get; private set; }

        /// <summary>
-        /// 创建内置文件缓存条目
+        /// 创建内置文件缓存条目实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="filePath">资源包文件路径</param>
-        public BuiltinBundleCacheEntry(string bundleGUID, string filePath)
+        public BuiltinBundleCacheEntry(string bundleGuid, string filePath)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            FilePath = filePath;
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalog.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalog.cs
@@ -1,5 +1,4 @@
 using System;
-using System.IO;
 using System.Collections.Generic;

 namespace YooAsset
@@ -19,7 +18,7 @@ namespace YooAsset
            /// <summary>
            /// 资源包唯一标识
            /// </summary>
-            public string BundleGUID;
+            public string BundleGuid;

            /// <summary>
            /// 资源包文件名
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalogConsts.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalogConsts.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 内置资源目录常量定义
    /// </summary>
-    internal class BuiltinCatalogConsts
+    internal static class BuiltinCatalogConsts
    {
        /// <summary>
        /// 文件极限大小（100MB）
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalogHelper.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/BuiltinCatalogHelper.cs
@@ -13,8 +13,12 @@ namespace YooAsset
 #if UNITY_EDITOR
        /// <summary>
        /// 生成包裹的内置资源目录文件
-        /// 说明：根据指定目录下的文件生成清单文件。
+        /// 说明：根据指定目录下的文件生成清单文件
        /// </summary>
+        /// <param name="decryptor">资源清单解密器</param>
+        /// <param name="packageName">包裹名称</param>
+        /// <param name="packageDirectory">包裹在目录路径</param>
+        /// <returns>是否创建文件成功</returns>
        public static bool CreateFile(IManifestDecryptor decryptor, string packageName, string packageDirectory)
        {
            // 获取资源清单版本
@@ -51,7 +55,7 @@ namespace YooAsset
            {
                foreach (var packageBundle in packageManifest.BundleList)
                {
-                    fileMapping.Add(packageBundle.FileName, packageBundle.BundleGuid);
+                    fileMapping.Add(packageBundle.GetFileName(), packageBundle.BundleGuid);
                }
            }

@@ -92,10 +96,10 @@ namespace YooAsset
                    continue;

                string fileName = fileInfo.Name;
-                if (fileMapping.TryGetValue(fileName, out string bundleGUID))
+                if (fileMapping.TryGetValue(fileName, out string bundleGuid))
                {
                    var fileEntry = new BuiltinCatalog.CatalogEntry();
-                    fileEntry.BundleGUID = bundleGUID;
+                    fileEntry.BundleGuid = bundleGuid;
                    fileEntry.FileName = fileName;
                    buildinCatalog.Entries.Add(fileEntry);
                }
@@ -125,6 +129,10 @@ namespace YooAsset
        /// <summary>
        /// 生成空的包裹内置资源目录文件
        /// </summary>
+        /// <param name="packageName">包裹名称</param>
+        /// <param name="packageVersion">包裹版本</param>
+        /// <param name="outputPath">输出目录路径</param>
+        /// <returns>是否创建文件成功</returns>
        public static bool CreateEmptyFile(string packageName, string packageVersion, string outputPath)
        {
            // 创建内置清单实例
@@ -153,6 +161,8 @@ namespace YooAsset
        /// <summary>
        /// 序列化为 JSON 文件
        /// </summary>
+        /// <param name="savePath">文件的保存路径</param>
+        /// <param name="catalog">要序列化的内置目录</param>
        public static void SerializeToJson(string savePath, BuiltinCatalog catalog)
        {
            string json = JsonUtility.ToJson(catalog, true);
@@ -162,6 +172,8 @@ namespace YooAsset
        /// <summary>
        /// 序列化为二进制文件
        /// </summary>
+        /// <param name="savePath">文件的保存路径</param>
+        /// <param name="catalog">要序列化的内置目录</param>
        public static void SerializeToBinary(string savePath, BuiltinCatalog catalog)
        {
            using (FileStream fs = new FileStream(savePath, FileMode.Create))
@@ -184,7 +196,7 @@ namespace YooAsset
                for (int i = 0; i < catalog.Entries.Count; i++)
                {
                    var fileWrapper = catalog.Entries[i];
-                    buffer.WriteString(fileWrapper.BundleGUID);
+                    buffer.WriteString(fileWrapper.BundleGuid);
                    buffer.WriteString(fileWrapper.FileName);
                }

@@ -198,6 +210,8 @@ namespace YooAsset
        /// <summary>
        /// 从 JSON 反序列化
        /// </summary>
+        /// <param name="jsonContent">文本内容</param>
+        /// <returns>反序列化得到的内置目录对象</returns>
        public static BuiltinCatalog DeserializeFromJson(string jsonContent)
        {
            return JsonUtility.FromJson<BuiltinCatalog>(jsonContent);
@@ -206,6 +220,8 @@ namespace YooAsset
        /// <summary>
        /// 从二进制数据反序列化
        /// </summary>
+        /// <param name="binaryData">二进制数据</param>
+        /// <returns>反序列化得到的内置目录对象</returns>
        public static BuiltinCatalog DeserializeFromBinary(byte[] binaryData)
        {
            if (binaryData == null || binaryData.Length == 0)
@@ -217,12 +233,12 @@ namespace YooAsset
            // 读取文件标记
            uint fileMagic = buffer.ReadUInt32();
            if (fileMagic != BuiltinCatalogConsts.FileMagic)
-                throw new Exception("Invalid catalog file.");
+                throw new Exception("Catalog file is invalid.");

            // 读取文件版本
            int fileVersion = buffer.ReadInt32();
            if (fileVersion != BuiltinCatalogConsts.FileVersion)
-                throw new Exception($"The catalog file version is not compatible: {fileVersion} != {BuiltinCatalogConsts.FileVersion}.");
+                throw new Exception($"Catalog file version is not compatible: {fileVersion} != {BuiltinCatalogConsts.FileVersion}.");

            BuiltinCatalog catalog = new BuiltinCatalog();
            {
@@ -237,7 +253,7 @@ namespace YooAsset
                for (int i = 0; i < fileCount; i++)
                {
                    var fileEntry = new BuiltinCatalog.CatalogEntry();
-                    fileEntry.BundleGUID = buffer.ReadString();
+                    fileEntry.BundleGuid = buffer.ReadString();
                    fileEntry.FileName = buffer.ReadString();
                    catalog.Entries.Add(fileEntry);
                }
@@ -246,4 +262,4 @@ namespace YooAsset
            return catalog;
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/Operations/BBCInitializeOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/Operations/BBCInitializeOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 内置文件缓存初始化操作
    /// </summary>
-    internal class BBCInitializeOperation : BCInitializeOperation
+    internal sealed class BBCInitializeOperation : BCInitializeOperation
    {
        private enum ESteps
        {
@@ -18,6 +18,10 @@ namespace YooAsset
        private LoadBuiltinCatalogOperation _loadBuiltinCatalogOp;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建内置缓存初始化操作实例
+        /// </summary>
+        /// <param name="fileCache">内置文件缓存系统</param>
        public BBCInitializeOperation(BuiltinBundleCache fileCache)
        {
            _fileCache = fileCache;
@@ -35,10 +39,10 @@ namespace YooAsset
            {
                if (_loadBuiltinCatalogOp == null)
                {
-                    var options = new LoadBuiltinCatalogOptions();
-                    options.PackageName = _fileCache.PackageName;
-                    options.FilePath = _fileCache.GetCatalogBinaryFileLoadPath();
-                    options.DownloadBackend = _fileCache.Config.DownloadBackend;
+                    var options = new LoadBuiltinCatalogOptions(
+                        packageName: _fileCache.PackageName,
+                        filePath: _fileCache.GetCatalogBinaryFileLoadPath(),
+                        downloadBackend: _fileCache.Config.DownloadBackend);
                    _loadBuiltinCatalogOp = new LoadBuiltinCatalogOperation(options);
                    _loadBuiltinCatalogOp.StartOperation();
                    AddChildOperation(_loadBuiltinCatalogOp);
@@ -65,8 +69,8 @@ namespace YooAsset
                foreach (var fileEntry in catalog.Entries)
                {
                    string filePath = PathUtility.Combine(_fileCache.RootPath, fileEntry.FileName);
-                    var cacheEntry = new BuiltinBundleCacheEntry(fileEntry.BundleGUID, filePath);
-                    _fileCache.AddEntry(fileEntry.BundleGUID, cacheEntry);
+                    var cacheEntry = new BuiltinBundleCacheEntry(fileEntry.BundleGuid, filePath);
+                    _fileCache.AddEntry(fileEntry.BundleGuid, cacheEntry);
                }

                _steps = ESteps.Done;
--- a/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/Operations/BBCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/BuiltinBundleCache/Operations/BBCLoadBundleOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 内置文件缓存加载 AssetBundle 操作
    /// </summary>
-    internal class BBCLoadAssetBundleOperation : BCLoadBundleOperation
+    internal sealed class BBCLoadAssetBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -20,6 +20,11 @@ namespace YooAsset
        private BuiltinBundleCacheEntry _cacheEntry;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建内置 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="fileCache">内置文件缓存系统</param>
+        /// <param name="bundle">资源包描述</param>
        public BBCLoadAssetBundleOperation(BuiltinBundleCache fileCache, PackageBundle bundle)
        {
            _fileCache = fileCache;
@@ -52,11 +57,11 @@ namespace YooAsset
            {
                if (_loadLocalAssetBundleOp == null)
                {
-                    var options = new LoadLocalAssetBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _bundle;
-                    options.FilePath = _cacheEntry.FilePath;
-                    options.AssetBundleDecryptor = _fileCache.Config.AssetBundleDecryptor;
+                    var options = new LoadLocalAssetBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _bundle,
+                        filePath: _cacheEntry.FilePath,
+                        assetBundleDecryptor: _fileCache.Config.AssetBundleDecryptor);
                    _loadLocalAssetBundleOp = new LoadLocalAssetBundleOperation(options);
                    _loadLocalAssetBundleOp.StartOperation();
                    AddChildOperation(_loadLocalAssetBundleOp);
@@ -94,7 +99,7 @@ namespace YooAsset
    /// <summary>
    /// 内置文件缓存加载 RawBundle 操作
    /// </summary>
-    internal class BBCLoadRawBundleOperation : BCLoadBundleOperation
+    internal sealed class BBCLoadRawBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -142,11 +147,11 @@ namespace YooAsset
            {
                if(_loadLocalRawBundleOp == null)
                {
-                    var options = new LoadLocalRawBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _bundle;
-                    options.FilePath = _cacheEntry.FilePath;
-                    options.RawBundleDecryptor = _fileCache.Config.RawBundleDecryptor;
+                    var options = new LoadLocalRawBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _bundle,
+                        filePath: _cacheEntry.FilePath,
+                        rawBundleDecryptor: _fileCache.Config.RawBundleDecryptor);
                    _loadLocalRawBundleOp = new LoadLocalRawBundleOperation(options);
                    _loadLocalRawBundleOp.StartOperation();
                    AddChildOperation(_loadLocalRawBundleOp);
--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/EditorBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/EditorBundleCache.cs
@@ -4,34 +4,42 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 编辑器文件缓存系统，用于编辑器模式下的资源模拟加载
+    /// 编辑器文件缓存系统，用于编辑器模式下的资源模拟加载。
    /// </summary>
    internal class EditorBundleCache : IBundleCache
    {
        /// <summary>
        /// 编辑器文件缓存配置
        /// </summary>
-        internal struct Configuration
+        internal readonly struct Configuration
        {
            /// <summary>
-            /// 虚拟下载模式，模拟资源下载流程
+            /// 虚拟下载模式，模拟资源下载流程。
            /// </summary>
-            public bool VirtualDownloadMode { get; set; }
+            public bool VirtualDownloadMode { get; }

            /// <summary>
            /// 虚拟WebGL模式
            /// </summary>
-            public bool VirtualWebGLMode { get; set; }
+            public bool VirtualWebGLMode { get; }

            /// <summary>
            /// 异步模拟最小帧数
            /// </summary>
-            public int AsyncSimulateMinFrame { get; set; }
+            public int AsyncSimulateMinFrame { get; }

            /// <summary>
            /// 异步模拟最大帧数
            /// </summary>
-            public int AsyncSimulateMaxFrame { get; set; }
+            public int AsyncSimulateMaxFrame { get; }
+
+            public Configuration(bool virtualDownloadMode, bool virtualWebGLMode, int asyncSimulateMinFrame, int asyncSimulateMaxFrame)
+            {
+                VirtualDownloadMode = virtualDownloadMode;
+                VirtualWebGLMode = virtualWebGLMode;
+                AsyncSimulateMinFrame = asyncSimulateMinFrame;
+                AsyncSimulateMaxFrame = asyncSimulateMaxFrame;
+            }
        }

        private readonly Dictionary<string, EditorBundleCacheEntry> _cacheEntries = new Dictionary<string, EditorBundleCacheEntry>(10000);
@@ -53,7 +61,7 @@ namespace YooAsset
        public string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        public bool IsReadOnly { get; }

@@ -71,7 +79,7 @@ namespace YooAsset
        /// <summary>
        /// 已占用空间
        /// </summary>
-        /// <remarks>按缓存索引累计</remarks>
+        /// <remarks>编辑器缓存为虚拟缓存，不占用磁盘空间。</remarks>
        public long SpaceOccupied { get; private set; }
        #endregion

@@ -93,19 +101,19 @@ namespace YooAsset
        {
        }
        /// <inheritdoc />
-        public virtual BCInitializeOperation InitializeAsync()
+        public BCInitializeOperation InitializeAsync()
        {
            var operation = new EBCInitializeOperation(this);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
+        public BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
        {
            var operation = new EBCWriteCacheOperation(this, options);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
+        public BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
        {
            ICacheEvictionPolicy policy = CreateEvictionPolicy(options);
            if (policy == null)
@@ -117,7 +125,9 @@ namespace YooAsset
        /// <summary>
        /// 根据 ClearMethod 创建对应的淘汰策略实例
        /// </summary>
-        protected virtual ICacheEvictionPolicy CreateEvictionPolicy(BCClearCacheOptions options)
+        /// <param name="options">清理缓存选项</param>
+        /// <returns>淘汰策略实例</returns>
+        protected ICacheEvictionPolicy CreateEvictionPolicy(BCClearCacheOptions options)
        {
            if (options.ClearMethod == ClearCacheMethods.ClearAllBundleFiles)
                return new EvictionAllPolicy();
@@ -134,31 +144,31 @@ namespace YooAsset
            return null;
        }
        /// <inheritdoc />
-        public virtual BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
+        public BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
        {
            var operation = new BCVerifyCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
+        public BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
        {
-            if (options.Bundle.BundleType == (int)EBundleType.VirtualBundle)
+            if (options.Bundle.GetBundleType() == (int)EBundleType.VirtualBundle)
            {
                var operation = new EBCLoadBundleOperation(this, options.Bundle);
                return operation;
            }
            else
            {
-                string error = $"{nameof(EditorBundleCache)} does not support bundle type: {options.Bundle.BundleType}.";
+                string error = $"{nameof(EditorBundleCache)} does not support bundle type: {options.Bundle.GetBundleType()}.";
                var operation = new BCLoadBundleErrorOperation(error);
                return operation;
            }
        }
        /// <inheritdoc />
-        public virtual bool IsCached(string bundleGUID)
+        public bool IsCached(string bundleGuid)
        {
            if (Config.VirtualDownloadMode)
-                return _cacheEntries.ContainsKey(bundleGUID);
+                return _cacheEntries.ContainsKey(bundleGuid);
            else
                return true;
        }
@@ -167,6 +177,7 @@ namespace YooAsset
        /// <summary>
        /// 获取所有缓存条目
        /// </summary>
+        /// <returns>当前字典中全部缓存条目的只读集合</returns>
        internal IReadOnlyCollection<EditorBundleCacheEntry> GetAllEntries()
        {
            return _cacheEntries.Values;
@@ -175,24 +186,27 @@ namespace YooAsset
        /// <summary>
        /// 添加指定缓存条目
        /// </summary>
-        internal void AddEntry(string bundleGUID, EditorBundleCacheEntry cacheEntry)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <param name="cacheEntry">编辑器缓存条目</param>
+        internal void AddEntry(string bundleGuid, EditorBundleCacheEntry cacheEntry)
        {
-            if (_cacheEntries.ContainsKey(bundleGUID))
-                throw new YooInternalException($"Cache entry already exists: '{bundleGUID}'.");
+            if (_cacheEntries.ContainsKey(bundleGuid))
+                throw new YooInternalException($"Cache entry already exists: '{bundleGuid}'.");

-            _cacheEntries.Add(bundleGUID, cacheEntry);
+            _cacheEntries.Add(bundleGuid, cacheEntry);
        }

        /// <summary>
        /// 删除指定缓存条目
        /// </summary>
-        internal void RemoveEntry(string bundleGUID)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        internal void RemoveEntry(string bundleGuid)
        {
-            if (_cacheEntries.TryGetValue(bundleGUID, out EditorBundleCacheEntry entry))
+            if (_cacheEntries.TryGetValue(bundleGuid, out EditorBundleCacheEntry entry))
            {
-                _cacheEntries.Remove(bundleGUID);
+                _cacheEntries.Remove(bundleGuid);
            }
        }
        #endregion
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/EditorBundleCacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/EditorBundleCacheEntry.cs
@@ -9,7 +9,7 @@ namespace YooAsset
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 资源包文件路径
@@ -17,13 +17,13 @@ namespace YooAsset
        public string FilePath { get; private set; }

        /// <summary>
-        /// 创建编辑器文件缓存条目
+        /// 创建编辑器文件缓存条目实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="filePath">资源包文件路径</param>
-        public EditorBundleCacheEntry(string bundleGUID, string filePath)
+        public EditorBundleCacheEntry(string bundleGuid, string filePath)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            FilePath = filePath;
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCClearCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCClearCacheOperation.cs
@@ -18,9 +18,15 @@ namespace YooAsset
        private readonly EditorBundleCache _fileCache;
        private readonly BCClearCacheOptions _options;
        private readonly ICacheEvictionPolicy _policy;
-        private List<string> _bundleGUIDs;
+        private IReadOnlyList<string> _bundleGuids;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建编辑器清理缓存操作实例
+        /// </summary>
+        /// <param name="fileCache">编辑器文件缓存系统</param>
+        /// <param name="options">清理缓存选项</param>
+        /// <param name="policy">缓存逐出策略</param>
        internal EBCClearCacheOperation(EditorBundleCache fileCache, BCClearCacheOptions options, ICacheEvictionPolicy policy)
        {
            _fileCache = fileCache;
@@ -48,15 +54,15 @@ namespace YooAsset
                    return;
                }

-                _bundleGUIDs = clearResult.BundleGUIDs;
+                _bundleGuids = clearResult.BundleGuids;
                _steps = ESteps.ClearCacheFiles;
            }

            if (_steps == ESteps.ClearCacheFiles)
            {
-                foreach (var bundleGUID in _bundleGUIDs)
+                foreach (var bundleGuid in _bundleGuids)
                {
-                    _fileCache.RemoveEntry(bundleGUID);
+                    _fileCache.RemoveEntry(bundleGuid);
                }

                _steps = ESteps.Done;
--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCInitializeOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCInitializeOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 编辑器文件缓存初始化操作
    /// </summary>
-    internal class EBCInitializeOperation : BCInitializeOperation
+    internal sealed class EBCInitializeOperation : BCInitializeOperation
    {
        private readonly EditorBundleCache _fileCache;

--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCLoadBundleOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 编辑器文件缓存加载资源包操作
    /// </summary>
-    internal class EBCLoadBundleOperation : BCLoadBundleOperation
+    internal sealed class EBCLoadBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
--- a/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCWriteCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/EditorBundleCache/Operations/EBCWriteCacheOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 编辑器文件缓存写入操作
    /// </summary>
-    internal class EBCWriteCacheOperation : BCWriteCacheOperation
+    internal sealed class EBCWriteCacheOperation : BCWriteCacheOperation
    {
        private enum ESteps
        {
@@ -18,9 +18,14 @@ namespace YooAsset
        private readonly BCWriteCacheOptions _options;
        private ESteps _steps = ESteps.None;

-        public EBCWriteCacheOperation(EditorBundleCache cache, BCWriteCacheOptions options)
+        /// <summary>
+        /// 创建编辑器写入缓存操作实例
+        /// </summary>
+        /// <param name="fileCache">编辑器文件缓存系统</param>
+        /// <param name="options">写入缓存选项</param>
+        public EBCWriteCacheOperation(EditorBundleCache fileCache, BCWriteCacheOptions options)
        {
-            _fileCache = cache;
+            _fileCache = fileCache;
            _options = options;
        }
        protected override void InternalStart()
@@ -37,7 +42,7 @@ namespace YooAsset
                if (_fileCache.IsCached(_options.Bundle.BundleGuid))
                {
                    _steps = ESteps.Done;
-                    SetError("The bundle is already cached.");
+                    SetError("Bundle is already cached.");
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/FileVerifyHelper.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/FileVerifyHelper.cs
@@ -13,9 +13,9 @@ namespace YooAsset
        /// </summary>
        /// <param name="filePath">文件路径</param>
        /// <param name="fileSize">期望的文件大小</param>
-        /// <param name="fileCRC">期望的文件CRC值</param>
+        /// <param name="fileCrc">期望的文件CRC值</param>
        /// <returns>校验结果</returns>
-        public static EFileVerifyResult VerifyFile(string filePath, long fileSize, uint fileCRC)
+        public static EFileVerifyResult VerifyFile(string filePath, long fileSize, uint fileCrc)
        {
            try
            {
@@ -23,6 +23,7 @@ namespace YooAsset
                    return EFileVerifyResult.DataFileNotExisted;

                // 可选条件：验证文件大小
+                // fileSize == 0 表示调用方不要求大小校验（哨兵值）
                if (fileSize > 0)
                {
                    long size = FileUtility.GetFileSize(filePath);
@@ -33,10 +34,11 @@ namespace YooAsset
                }

                // 可选条件：验证文件CRC
-                if (fileCRC > 0)
+                // fileCRC == 0 表示调用方不要求 CRC 校验（哨兵值）
+                if (fileCrc > 0)
                {
                    uint crc = HashUtility.ComputeFileCrc32AsUInt(filePath);
-                    if (crc == fileCRC)
+                    if (crc == fileCrc)
                        return EFileVerifyResult.Succeed;
                    else
                        return EFileVerifyResult.DataFileCrcError;
@@ -48,7 +50,7 @@ namespace YooAsset
            }
            catch (Exception ex)
            {
-                YooLogger.Error($"File verification exception: {ex.Message}.");
+                YooLogger.LogError($"File verification exception: {ex.Message}.");
                return EFileVerifyResult.Exception;
            }
        }
@@ -58,9 +60,9 @@ namespace YooAsset
        /// </summary>
        /// <param name="fileData">文件数据</param>
        /// <param name="fileSize">期望的文件大小</param>
-        /// <param name="fileCRC">期望的文件CRC值</param>
+        /// <param name="fileCrc">期望的文件CRC值</param>
        /// <returns>校验结果</returns>
-        public static EFileVerifyResult VerifyFile(byte[] fileData, long fileSize, uint fileCRC)
+        public static EFileVerifyResult VerifyFile(byte[] fileData, long fileSize, uint fileCrc)
        {
            try
            {
@@ -68,6 +70,7 @@ namespace YooAsset
                    return EFileVerifyResult.DataFileInvalid;

                // 可选条件：验证文件大小
+                // fileSize == 0 表示调用方不要求大小校验（哨兵值）
                if (fileSize > 0)
                {
                    long size = fileData.Length;
@@ -78,10 +81,11 @@ namespace YooAsset
                }

                // 可选条件：验证文件CRC
-                if (fileCRC > 0)
+                // fileCRC == 0 表示调用方不要求 CRC 校验（哨兵值）
+                if (fileCrc > 0)
                {
                    uint crc = HashUtility.ComputeCrc32AsUInt(fileData);
-                    if (crc == fileCRC)
+                    if (crc == fileCrc)
                        return EFileVerifyResult.Succeed;
                    else
                        return EFileVerifyResult.DataFileCrcError;
@@ -93,7 +97,7 @@ namespace YooAsset
            }
            catch (Exception ex)
            {
-                YooLogger.Error($"File verification exception: {ex.Message}.");
+                YooLogger.LogError($"File verification exception: {ex.Message}.");
                return EFileVerifyResult.Exception;
            }
        }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/ClearCacheFilesOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/ClearCacheFilesOperation.cs
@@ -5,7 +5,7 @@ namespace YooAsset
    /// <summary>
    /// 清理缓存文件操作
    /// </summary>
-    internal class ClearCacheFilesOperation : AsyncOperationBase
+    internal sealed class ClearCacheFilesOperation : AsyncOperationBase
    {
        private enum ESteps
        {
@@ -16,14 +16,19 @@ namespace YooAsset
        }

        private readonly SandboxBundleCache _fileCache;
-        private readonly List<string> _bundleGUIDs;
+        private readonly List<string> _bundleGuids;
        private int _fileTotalCount;
        private ESteps _steps = ESteps.None;

-        public ClearCacheFilesOperation(SandboxBundleCache fileCache, List<string> bundleGUIDs)
+        /// <summary>
+        /// 创建清理缓存文件操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="bundleGuids">要清理的资源包 GUID 列表</param>
+        public ClearCacheFilesOperation(SandboxBundleCache fileCache, List<string> bundleGuids)
        {
            _fileCache = fileCache;
-            _bundleGUIDs = bundleGUIDs;
+            _bundleGuids = bundleGuids;
        }
        protected override void InternalStart()
        {
@@ -36,24 +41,24 @@ namespace YooAsset

            if (_steps == ESteps.CheckParam)
            {
-                if (_bundleGUIDs == null || _bundleGUIDs.Count == 0)
+                if (_bundleGuids == null || _bundleGuids.Count == 0)
                {
                    _steps = ESteps.Done;
                    SetResult();
                    return;
                }

-                _fileTotalCount = _bundleGUIDs.Count;
+                _fileTotalCount = _bundleGuids.Count;
                _steps = ESteps.ClearCache;
            }

            if (_steps == ESteps.ClearCache)
            {
-                for (int i = _bundleGUIDs.Count - 1; i >= 0; i--)
+                for (int i = _bundleGuids.Count - 1; i >= 0; i--)
                {
-                    string bundleGUID = _bundleGUIDs[i];
-                    _fileCache.RemoveEntry(bundleGUID);
-                    _bundleGUIDs.RemoveAt(i);
+                    string bundleGuid = _bundleGuids[i];
+                    _fileCache.RemoveEntry(bundleGuid);
+                    _bundleGuids.RemoveAt(i);
                    if (IsBusy)
                        break;
                }
@@ -61,9 +66,9 @@ namespace YooAsset
                if (_fileTotalCount == 0)
                    Progress = 1.0f;
                else
-                    Progress = 1.0f - ((float)_bundleGUIDs.Count / _fileTotalCount);
+                    Progress = 1.0f - ((float)_bundleGuids.Count / _fileTotalCount);

-                if (_bundleGUIDs.Count == 0)
+                if (_bundleGuids.Count == 0)
                {
                    _steps = ESteps.Done;
                    SetResult();
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/SearchCacheFilesOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/SearchCacheFilesOperation.cs
@@ -6,7 +6,7 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 搜索缓存文件操作，扫描缓存目录中的文件
+    /// 搜索缓存文件操作，扫描缓存目录中的文件。
    /// </summary>
    internal sealed class SearchCacheFilesOperation : AsyncOperationBase
    {
@@ -28,7 +28,10 @@ namespace YooAsset
        /// </summary>
        public readonly List<SearchFileInfo> Result = new List<SearchFileInfo>(5000);

-
+        /// <summary>
+        /// 创建搜索缓存文件操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
        internal SearchCacheFilesOperation(SandboxBundleCache fileCache)
        {
            _fileCache = fileCache;
@@ -69,7 +72,15 @@ namespace YooAsset
                _steps = ESteps.Done;
                SetResult();
                double costTime = TimeUtility.RealtimeSinceStartup - _verifyStartTime;
-                YooLogger.Log($"Search cache files elapsed time {costTime:f1} seconds");
+                YooLogger.Log($"Cache file search completed in {costTime:f1} seconds.");
+            }
+        }
+        protected override void InternalDispose()
+        {
+            if (_filesEnumerator != null)
+            {
+                _filesEnumerator.Dispose();
+                _filesEnumerator = null;
            }
        }

@@ -86,15 +97,15 @@ namespace YooAsset
                var childDirectories = Directory.EnumerateDirectories(rootFolder);
                foreach (var childDirectory in childDirectories)
                {
-                    string bundleGUID = Path.GetFileName(childDirectory);
-                    if (_fileCache.IsCached(bundleGUID))
+                    string bundleGuid = Path.GetFileName(childDirectory);
+                    if (_fileCache.IsCached(bundleGuid))
                        continue;

                    // 创建验证元素类
                    string fileRootPath = childDirectory;
                    string dataFilePath = PathUtility.Combine(fileRootPath, SandboxBundleCacheConsts.BundleDataFileName);
                    string infoFilePath = PathUtility.Combine(fileRootPath, SandboxBundleCacheConsts.BundleInfoFileName);
-                    var element = new SearchFileInfo(bundleGUID, fileRootPath, dataFilePath, infoFilePath);
+                    var element = new SearchFileInfo(bundleGuid, fileRootPath, dataFilePath, infoFilePath);
                    Result.Add(element);
                }

@@ -105,4 +116,4 @@ namespace YooAsset
            return isFindItem;
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/VerifyCacheFilesOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/VerifyCacheFilesOperation.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections;
 using System.Collections.Generic;
 using System.IO;
 using System.Threading;
@@ -7,7 +6,7 @@ using System.Threading;
 namespace YooAsset
 {
    /// <summary>
-    /// 缓存文件验证（线程版），验证缓存目录中的文件
+    /// 缓存文件验证（线程版），验证缓存目录中的文件。
    /// </summary>
    internal sealed class VerifyCacheFilesOperation : AsyncOperationBase
    {
@@ -31,7 +30,13 @@ namespace YooAsset
        private int _failedCount;
        private ESteps _steps = ESteps.None;

-
+        /// <summary>
+        /// 创建缓存文件验证操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="verifyLevel">文件校验等级</param>
+        /// <param name="fileVerifyMaxConcurrency">文件校验最大并发数</param>
+        /// <param name="elements">待验证的搜索文件信息列表</param>
        internal VerifyCacheFilesOperation(SandboxBundleCache fileCache, EFileVerifyLevel verifyLevel, int fileVerifyMaxConcurrency, List<SearchFileInfo> elements)
        {
            _fileCache = fileCache;
@@ -56,7 +61,7 @@ namespace YooAsset
                if (_maxConcurrentVerifyCount < 1)
                    _maxConcurrentVerifyCount = 1;

-                YooLogger.Log($"Verify max concurrency: {_maxConcurrentVerifyCount}");
+                YooLogger.Log($"Maximum verify concurrency is {_maxConcurrentVerifyCount}.");
                _activeVerifyList = new List<SearchFileInfo>(_maxConcurrentVerifyCount);
                _verifyStartTime = TimeUtility.RealtimeSinceStartup;
                _verifyTotalCount = _pendingVerifyList.Count;
@@ -76,13 +81,13 @@ namespace YooAsset
                        if (resultCode == (int)EFileVerifyResult.Succeed)
                        {
                            _successCount++;
-                            var cacheEntry = new SandboxBundleCacheEntry(verifyElement.BundleGUID, verifyElement.InfoFilePath, verifyElement.DataFilePath);
-                            _fileCache.AddEntry(verifyElement.BundleGUID, cacheEntry);
+                            var cacheEntry = new SandboxBundleCacheEntry(verifyElement.BundleGuid, verifyElement.InfoFilePath, verifyElement.DataFilePath);
+                            _fileCache.AddEntry(verifyElement.BundleGuid, cacheEntry);
                        }
                        else
                        {
                            _failedCount++;
-                            YooLogger.Warning($"File verification failed (code: {verifyElement.VerifyResultCode}). Deleting files: '{verifyElement.FolderPath}'.");
+                            YooLogger.LogWarning($"File verification failed (code: {resultCode}). Deleting files: '{verifyElement.FolderPath}'.");
                            verifyElement.DeleteCacheFolder();
                        }
                    }
@@ -94,7 +99,7 @@ namespace YooAsset
                    _steps = ESteps.Done;
                    SetResult();
                    double costTime = TimeUtility.RealtimeSinceStartup - _verifyStartTime;
-                    YooLogger.Log($"Verify cache files elapsed time {costTime:f1} seconds");
+                    YooLogger.Log($"Cache file verification completed in {costTime:f1} seconds.");
                }

                for (int i = _pendingVerifyList.Count - 1; i >= 0; i--)
@@ -163,13 +168,13 @@ namespace YooAsset
                else if (verifyLevel == EFileVerifyLevel.High)
                    return FileVerifyHelper.VerifyFile(element.DataFilePath, dataFileSize, dataFileCRC);
                else
-                    throw new System.NotImplementedException(verifyLevel.ToString());
+                    throw new YooInternalException($"Unexpected verify level: {verifyLevel}.");
            }
            catch (Exception ex)
            {
-                YooLogger.Error($"File verification exception: {ex.Message}.");
+                YooLogger.LogError($"File verification exception: {ex.Message}.");
                return EFileVerifyResult.Exception;
            }
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/VerifyTempFileOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/Internal/VerifyTempFileOperation.cs
@@ -24,7 +24,10 @@ namespace YooAsset
        /// </summary>
        public EFileVerifyResult VerifyResult { private set; get; }

-
+        /// <summary>
+        /// 创建下载文件验证（线程版）实例
+        /// </summary>
+        /// <param name="element">临时文件信息</param>
        internal VerifyTempFileOperation(TempFileInfo element)
        {
            _element = element;
@@ -75,7 +78,7 @@ namespace YooAsset
        private void VerifyFileInThread(object obj)
        {
            TempFileInfo element = (TempFileInfo)obj;
-            int resultCode = (int)FileVerifyHelper.VerifyFile(element.FilePath, element.FileSize, element.FileCRC);
+            int resultCode = (int)FileVerifyHelper.VerifyFile(element.FilePath, element.FileSize, element.FileCrc);
            element.VerifyResultCode = resultCode; //注意: 一次命令赋值
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCClearCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCClearCacheOperation.cs
@@ -1,3 +1,4 @@
+using System.Collections.Generic;

 namespace YooAsset
 {
@@ -20,6 +21,12 @@ namespace YooAsset
        private ClearCacheFilesOperation _clearCacheFilesOp;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建沙盒清理缓存操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="options">清理缓存选项</param>
+        /// <param name="policy">缓存淘汰策略</param>
        internal SBCClearCacheOperation(SandboxBundleCache fileCache, BCClearCacheOptions options, ICacheEvictionPolicy policy)
        {
            _fileCache = fileCache;
@@ -48,7 +55,7 @@ namespace YooAsset
                    return;
                }

-                _clearCacheFilesOp = new ClearCacheFilesOperation(_fileCache, clearResult.BundleGUIDs);
+                _clearCacheFilesOp = new ClearCacheFilesOperation(_fileCache, new List<string>(clearResult.BundleGuids));
                _clearCacheFilesOp.StartOperation();
                AddChildOperation(_clearCacheFilesOp);
                _steps = ESteps.ClearCacheFiles;
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCInitializeOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCInitializeOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 沙盒文件缓存初始化操作
    /// </summary>
-    internal class SBCInitializeOperation : BCInitializeOperation
+    internal sealed class SBCInitializeOperation : BCInitializeOperation
    {
        private enum ESteps
        {
@@ -19,6 +19,10 @@ namespace YooAsset
        private VerifyCacheFilesOperation _verifyCacheFilesOp;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建沙盒缓存初始化操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
        public SBCInitializeOperation(SandboxBundleCache fileCache)
        {
            _fileCache = fileCache;
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCLoadBundleOperation.cs
@@ -7,7 +7,7 @@ namespace YooAsset
    /// <summary>
    /// 沙盒文件缓存加载 AssetBundle 操作
    /// </summary>
-    internal class SBCLoadAssetBundleOperation : BCLoadBundleOperation
+    internal sealed class SBCLoadAssetBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -26,10 +26,15 @@ namespace YooAsset
        private SandboxBundleCacheEntry _cacheEntry;
        private ESteps _steps = ESteps.None;

-        public SBCLoadAssetBundleOperation(SandboxBundleCache fileCache, PackageBundle bundle)
+        /// <summary>
+        /// 创建沙盒 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="packageBundle">资源包描述</param>
+        public SBCLoadAssetBundleOperation(SandboxBundleCache fileCache, PackageBundle packageBundle)
        {
            _fileCache = fileCache;
-            _bundle = bundle;
+            _bundle = packageBundle;
        }
        protected override void InternalStart()
        {
@@ -58,11 +63,11 @@ namespace YooAsset
            {
                if (_loadLocalAssetBundleOp == null)
                {
-                    var options = new LoadLocalAssetBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _bundle;
-                    options.FilePath = _cacheEntry.DataFilePath;
-                    options.AssetBundleDecryptor = _fileCache.Config.AssetBundleDecryptor;
+                    var options = new LoadLocalAssetBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _bundle,
+                        filePath: _cacheEntry.DataFilePath,
+                        assetBundleDecryptor: _fileCache.Config.AssetBundleDecryptor);
                    _loadLocalAssetBundleOp = new LoadLocalAssetBundleOperation(options);
                    _loadLocalAssetBundleOp.StartOperation();
                    AddChildOperation(_loadLocalAssetBundleOp);
@@ -105,9 +110,7 @@ namespace YooAsset
                // 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
                if (_verifyCacheOp == null)
                {
-                    var options = new BCVerifyCacheOptions();
-                    options.Bundle = _bundle;
-                    options.DeleteCacheEntryOnFailure = true;
+                    var options = new BCVerifyCacheOptions(_bundle, true);
                    _verifyCacheOp = _fileCache.VerifyCacheAsync(options);
                    _verifyCacheOp.StartOperation();
                    AddChildOperation(_verifyCacheOp);
@@ -178,23 +181,39 @@ namespace YooAsset

        private AssetBundle FallbackLoadAssetBundle()
        {
-            byte[] fileData = FileUtility.ReadAllBytes(_cacheEntry.DataFilePath);
-            return AssetBundle.LoadFromMemory(fileData);
+            try
+            {
+                byte[] fileData = FileUtility.ReadAllBytes(_cacheEntry.DataFilePath);
+                return AssetBundle.LoadFromMemory(fileData);
+            }
+            catch (Exception ex)
+            {
+                YooLogger.LogWarning($"Fallback load failed: {ex.Message}.");
+                return null;
+            }
        }
        private AssetBundle FallbackLoadEncryptedAssetBundle(IBundleMemoryDecryptor decryptor)
        {
-            var args = new BundleDecryptArgs();
-            args.Bundle = _bundle;
-            args.FilePath = _cacheEntry.DataFilePath;
-            var fileData = decryptor.GetDecryptedData(args);
-            return AssetBundle.LoadFromMemory(fileData);
+            try
+            {
+                var args = new BundleDecryptArgs(_bundle, null, _cacheEntry.DataFilePath);
+                var fileData = decryptor.GetDecryptedData(args);
+                if (fileData == null)
+                    return null;
+                return AssetBundle.LoadFromMemory(fileData);
+            }
+            catch (Exception ex)
+            {
+                YooLogger.LogWarning($"Fallback encrypted load failed: {ex.Message}.");
+                return null;
+            }
        }
    }

    /// <summary>
    /// 沙盒文件缓存加载 RawBundle 操作
    /// </summary>
-    internal class SBCLoadRawBundleOperation : BCLoadBundleOperation
+    internal sealed class SBCLoadRawBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -211,6 +230,11 @@ namespace YooAsset

        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建沙盒 RawBundle 加载操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="bundle">资源包描述</param>
        public SBCLoadRawBundleOperation(SandboxBundleCache fileCache, PackageBundle bundle)
        {
            _fileCache = fileCache;
@@ -243,11 +267,11 @@ namespace YooAsset
            {
                if (_loadLocalRawBundleOp == null)
                {
-                    var options = new LoadLocalRawBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _bundle;
-                    options.FilePath = _cacheEntry.DataFilePath;
-                    options.RawBundleDecryptor = _fileCache.Config.RawBundleDecryptor;
+                    var options = new LoadLocalRawBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _bundle,
+                        filePath: _cacheEntry.DataFilePath,
+                        rawBundleDecryptor: _fileCache.Config.RawBundleDecryptor);
                    _loadLocalRawBundleOp = new LoadLocalRawBundleOperation(options);
                    _loadLocalRawBundleOp.StartOperation();
                    AddChildOperation(_loadLocalRawBundleOp);
@@ -283,7 +307,7 @@ namespace YooAsset
    }

 #if TUANJIE_1_7_OR_NEWER
-    internal class SBCLoadInstantBundleOperation : BCLoadBundleOperation
+    internal sealed class SBCLoadInstantBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -295,11 +319,11 @@ namespace YooAsset

        protected override void InternalStart()
        {
-            throw new NotImplementedException();
+            throw new NotImplementedException($"{nameof(SBCLoadInstantBundleOperation)} is not implemented.");
        }
        protected override void InternalUpdate()
        {
-            throw new NotImplementedException();
+            throw new NotImplementedException($"{nameof(SBCLoadInstantBundleOperation)} is not implemented.");
        }
    }
 #endif
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCVerifyCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCVerifyCacheOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 沙盒文件缓存验证操作
    /// </summary>
-    internal class SBCVerifyCacheOperation : BCVerifyCacheOperation
+    internal sealed class SBCVerifyCacheOperation : BCVerifyCacheOperation
    {
        private enum ESteps
        {
@@ -19,9 +19,14 @@ namespace YooAsset
        private VerifyTempFileOperation _verifyTempFileOp;
        private ESteps _steps = ESteps.None;

-        public SBCVerifyCacheOperation(SandboxBundleCache cache, BCVerifyCacheOptions options)
+        /// <summary>
+        /// 创建沙盒验证缓存操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="options">验证缓存选项</param>
+        public SBCVerifyCacheOperation(SandboxBundleCache fileCache, BCVerifyCacheOptions options)
        {
-            _fileCache = cache;
+            _fileCache = fileCache;
            _options = options;
        }
        protected override void InternalStart()
@@ -38,7 +43,7 @@ namespace YooAsset
                if (_fileCache.IsCached(_options.Bundle.BundleGuid) == false)
                {
                    _steps = ESteps.Done;
-                    SetError("Cached bundle not found.");
+                    SetError($"File cache entry not found: '{_options.Bundle.BundleGuid}'.");
                }
                else
                {
@@ -51,6 +56,13 @@ namespace YooAsset
                if (_verifyTempFileOp == null)
                {
                    var entry = _fileCache.GetEntry(_options.Bundle.BundleGuid);
+                    if (entry == null)
+                    {
+                        _steps = ESteps.Done;
+                        SetError($"File cache entry not found: '{_options.Bundle.BundleGuid}'.");
+                        return;
+                    }
+
                    var element = new TempFileInfo(entry.DataFilePath, _options.Bundle.FileCrc, _options.Bundle.FileSize);
                    _verifyTempFileOp = new VerifyTempFileOperation(element);
                    _verifyTempFileOp.StartOperation();
@@ -76,7 +88,7 @@ namespace YooAsset

                    if (_options.DeleteCacheEntryOnFailure)
                    {
-                        YooLogger.Error($"Found corrupted bundle file. Removing cache entry: '{_options.Bundle.BundleGuid}'.");
+                        YooLogger.LogError($"Found corrupted bundle file. Removing cache entry: '{_options.Bundle.BundleGuid}'.");
                        _fileCache.RemoveEntry(_options.Bundle.BundleGuid);
                    }
                }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCWriteCacheOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/Operations/SBCWriteCacheOperation.cs
@@ -6,7 +6,7 @@ namespace YooAsset
    /// <summary>
    /// 沙盒文件缓存写入操作
    /// </summary>
-    internal class SBCWriteCacheOperation : BCWriteCacheOperation
+    internal sealed class SBCWriteCacheOperation : BCWriteCacheOperation
    {
        private enum ESteps
        {
@@ -22,6 +22,11 @@ namespace YooAsset
        private VerifyTempFileOperation _verifyTempFileOp;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建沙盒写入缓存操作实例
+        /// </summary>
+        /// <param name="fileCache">沙盒文件缓存系统</param>
+        /// <param name="options">写入缓存选项</param>
        public SBCWriteCacheOperation(SandboxBundleCache fileCache, BCWriteCacheOptions options)
        {
            _fileCache = fileCache;
@@ -41,7 +46,7 @@ namespace YooAsset
                if (_fileCache.IsCached(_options.Bundle.BundleGuid))
                {
                    _steps = ESteps.Done;
-                    SetError("The bundle is already cached.");
+                    SetError("Bundle is already cached.");
                }
                else
                {
@@ -120,8 +125,8 @@ namespace YooAsset
                catch (Exception ex)
                {
                    _steps = ESteps.Done;
-                    SetError($"Failed to write cache file. Error: {ex.Message}.");
-                    YooLogger.Error(Error);
+                    SetError($"Failed to write cache file: {ex.Message}.");
+                    YooLogger.LogError(Error);

                    // 回滚：清理临时文件，正式文件不受影响
                    DeleteFileSafely(dataTempPath);
@@ -150,7 +155,7 @@ namespace YooAsset
            }
            catch (Exception ex)
            {
-                YooLogger.Warning($"Failed to delete file '{filePath}'. Error: {ex.Message}.");
+                YooLogger.LogWarning($"Failed to delete file '{filePath}': {ex.Message}.");
            }
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCache.cs
@@ -4,39 +4,49 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 沙盒文件缓存系统，用于管理下载到本地的资源包缓存
+    /// 沙盒文件缓存系统，用于管理下载到本地的资源包缓存。
    /// </summary>
    internal class SandboxBundleCache : IBundleCache
    {
        /// <summary>
        /// 沙盒文件缓存配置
        /// </summary>
-        internal struct Configuration
+        internal readonly struct Configuration
        {
            /// <summary>
            /// 文件校验最大并发数
            /// </summary>
-            public int FileVerifyMaxConcurrency { get; set; }
+            public int FileVerifyMaxConcurrency { get; }

            /// <summary>
            /// 文件校验级别
            /// </summary>
-            public EFileVerifyLevel FileVerifyLevel { get; set; }
+            public EFileVerifyLevel FileVerifyLevel { get; }

            /// <summary>
            /// AssetBundle 解密器
            /// </summary>
-            public IBundleDecryptor AssetBundleDecryptor { get; set; }
+            public IBundleDecryptor AssetBundleDecryptor { get; }

            /// <summary>
            /// RawBundle 解密器
            /// </summary>
-            public IBundleDecryptor RawBundleDecryptor { get; set; }
+            public IBundleDecryptor RawBundleDecryptor { get; }

            /// <summary>
            /// AssetBundle 备用解密器
            /// </summary>
-            public IBundleMemoryDecryptor AssetBundleFallbackDecryptor { get; set; }
+            public IBundleMemoryDecryptor AssetBundleFallbackDecryptor { get; }
+
+            public Configuration(int fileVerifyMaxConcurrency, EFileVerifyLevel fileVerifyLevel, 
+                IBundleDecryptor assetBundleDecryptor, IBundleDecryptor rawBundleDecryptor, IBundleMemoryDecryptor assetBundleFallbackDecryptor)
+            {
+                FileVerifyMaxConcurrency = fileVerifyMaxConcurrency;
+                FileVerifyLevel = fileVerifyLevel;
+                AssetBundleDecryptor = assetBundleDecryptor;
+                RawBundleDecryptor = rawBundleDecryptor;
+                AssetBundleFallbackDecryptor = assetBundleFallbackDecryptor;
+            }
        }

        private const int HashFolderNameLength = 2;
@@ -61,7 +71,7 @@ namespace YooAsset
        public string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        public bool IsReadOnly { get; }

@@ -101,19 +111,19 @@ namespace YooAsset
        {
        }
        /// <inheritdoc />
-        public virtual BCInitializeOperation InitializeAsync()
+        public BCInitializeOperation InitializeAsync()
        {
            var operation = new SBCInitializeOperation(this);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
+        public BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
        {
            var operation = new SBCWriteCacheOperation(this, options);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
+        public BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
        {
            ICacheEvictionPolicy policy = CreateEvictionPolicy(options);
            if (policy == null)
@@ -125,7 +135,9 @@ namespace YooAsset
        /// <summary>
        /// 根据 ClearMethod 创建对应的淘汰策略实例
        /// </summary>
-        protected virtual ICacheEvictionPolicy CreateEvictionPolicy(BCClearCacheOptions options)
+        /// <param name="options">清理缓存选项</param>
+        /// <returns>与清理方式匹配的淘汰策略实例</returns>
+        protected ICacheEvictionPolicy CreateEvictionPolicy(BCClearCacheOptions options)
        {
            if (options.ClearMethod == ClearCacheMethods.ClearAllBundleFiles)
                return new EvictionAllPolicy();
@@ -142,41 +154,43 @@ namespace YooAsset
            return null;
        }
        /// <inheritdoc />
-        public virtual BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
+        public BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
        {
            var operation = new SBCVerifyCacheOperation(this, options);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
+        public BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
        {
-            if (options.Bundle.BundleType == (int)EBundleType.AssetBundle)
+            if (options.Bundle.GetBundleType() == (int)EBundleType.AssetBundle)
            {
                var operation = new SBCLoadAssetBundleOperation(this, options.Bundle);
                return operation;
            }
-            else if (options.Bundle.BundleType == (int)EBundleType.RawBundle)
+            else if (options.Bundle.GetBundleType() == (int)EBundleType.RawBundle)
            {
                var operation = new SBCLoadRawBundleOperation(this, options.Bundle);
                return operation;
            }
            else
            {
-                string error = $"{nameof(SandboxBundleCache)} does not support bundle type: {options.Bundle.BundleType}.";
+                string error = $"{nameof(SandboxBundleCache)} does not support bundle type: {options.Bundle.GetBundleType()}.";
                var operation = new BCLoadBundleErrorOperation(error);
                return operation;
            }
        }
        /// <inheritdoc />
-        public virtual bool IsCached(string bundleGUID)
+        public bool IsCached(string bundleGuid)
        {
-            return _cacheEntries.ContainsKey(bundleGUID);
+            return _cacheEntries.ContainsKey(bundleGuid);
        }

        #region 内部方法
        /// <summary>
        /// 获取 Bundle 数据文件路径
        /// </summary>
+        /// <param name="bundle">资源包描述</param>
+        /// <returns>数据文件的完整路径</returns>
        internal string GetDataFilePath(PackageBundle bundle)
        {
            if (_dataFilePathMapping.TryGetValue(bundle.BundleGuid, out string filePath) == false)
@@ -191,6 +205,8 @@ namespace YooAsset
        /// <summary>
        /// 获取 Bundle 信息文件路径
        /// </summary>
+        /// <param name="bundle">资源包描述</param>
+        /// <returns>信息文件的完整路径</returns>
        internal string GetInfoFilePath(PackageBundle bundle)
        {
            if (_infoFilePathMapping.TryGetValue(bundle.BundleGuid, out string filePath) == false)
@@ -205,6 +221,8 @@ namespace YooAsset
        /// <summary>
        /// 获取 Bundle 数据临时文件路径
        /// </summary>
+        /// <param name="bundle">资源包描述</param>
+        /// <returns>数据临时文件的完整路径</returns>
        internal string GetDataTempFilePath(PackageBundle bundle)
        {
            string folderName = GetHashFolderName(bundle.FileHash);
@@ -214,6 +232,8 @@ namespace YooAsset
        /// <summary>
        /// 获取 Bundle 信息临时文件路径
        /// </summary>
+        /// <param name="bundle">资源包描述</param>
+        /// <returns>信息临时文件的完整路径</returns>
        internal string GetInfoTempFilePath(PackageBundle bundle)
        {
            string folderName = GetHashFolderName(bundle.FileHash);
@@ -223,9 +243,11 @@ namespace YooAsset
        /// <summary>
        /// 获取指定缓存条目
        /// </summary>
-        internal SandboxBundleCacheEntry GetEntry(string bundleGUID)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <returns>对应的沙盒缓存条目</returns>
+        internal SandboxBundleCacheEntry GetEntry(string bundleGuid)
        {
-            if (_cacheEntries.TryGetValue(bundleGUID, out SandboxBundleCacheEntry entry))
+            if (_cacheEntries.TryGetValue(bundleGuid, out SandboxBundleCacheEntry entry))
                return entry;
            else
                return null;
@@ -234,6 +256,7 @@ namespace YooAsset
        /// <summary>
        /// 获取所有缓存条目
        /// </summary>
+        /// <returns>当前字典中全部沙盒缓存条目的只读集合</returns>
        internal IReadOnlyCollection<SandboxBundleCacheEntry> GetAllEntries()
        {
            return _cacheEntries.Values;
@@ -242,26 +265,31 @@ namespace YooAsset
        /// <summary>
        /// 添加指定缓存条目
        /// </summary>
-        internal void AddEntry(string bundleGUID, SandboxBundleCacheEntry cacheEntry)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <param name="cacheEntry">沙盒缓存条目</param>
+        internal void AddEntry(string bundleGuid, SandboxBundleCacheEntry cacheEntry)
        {
-            if (_cacheEntries.ContainsKey(bundleGUID))
-                throw new YooInternalException($"Cache entry already exists: '{bundleGUID}'.");
+            if (_cacheEntries.ContainsKey(bundleGuid))
+                throw new YooInternalException($"Cache entry already exists: '{bundleGuid}'.");

-            _cacheEntries.Add(bundleGUID, cacheEntry);
+            _cacheEntries.Add(bundleGuid, cacheEntry);
            SpaceOccupied += cacheEntry.GetFileSize();
        }

        /// <summary>
        /// 删除指定缓存条目
        /// </summary>
-        internal void RemoveEntry(string bundleGUID)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        internal void RemoveEntry(string bundleGuid)
        {
-            if (_cacheEntries.TryGetValue(bundleGUID, out SandboxBundleCacheEntry entry))
+            if (_cacheEntries.TryGetValue(bundleGuid, out SandboxBundleCacheEntry entry))
            {
-                _cacheEntries.Remove(bundleGUID);
-                _dataFilePathMapping.Remove(bundleGUID);
-                _infoFilePathMapping.Remove(bundleGUID);
+                _cacheEntries.Remove(bundleGuid);
+                _dataFilePathMapping.Remove(bundleGuid);
+                _infoFilePathMapping.Remove(bundleGuid);
                SpaceOccupied -= entry.GetFileSize();
+                if (SpaceOccupied < 0)
+                    SpaceOccupied = 0;
                entry.Delete();
            }
        }
@@ -277,4 +305,4 @@ namespace YooAsset
        }
        #endregion
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCacheConsts.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCacheConsts.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// 沙盒文件缓存常量定义
    /// </summary>
-    internal class SandboxBundleCacheConsts
+    internal static class SandboxBundleCacheConsts
    {
        /// <summary>
        /// 数据文件名称
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SandboxBundleCacheEntry.cs
@@ -13,7 +13,7 @@ namespace YooAsset
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 信息文件路径
@@ -27,14 +27,14 @@ namespace YooAsset


        /// <summary>
-        /// 创建沙盒文件缓存条目
+        /// 创建沙盒文件缓存条目实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="infoFilePath">信息文件路径</param>
        /// <param name="dataFilePath">数据文件路径</param>
-        public SandboxBundleCacheEntry(string bundleGUID, string infoFilePath, string dataFilePath)
+        public SandboxBundleCacheEntry(string bundleGuid, string infoFilePath, string dataFilePath)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            InfoFilePath = infoFilePath;
            DataFilePath = dataFilePath;
        }
@@ -61,7 +61,7 @@ namespace YooAsset
            }
            catch (Exception ex)
            {
-                YooLogger.Error($"Failed to delete sandbox file. Error: {ex.Message}.");
+                YooLogger.LogError($"Failed to delete sandbox file: {ex.Message}.");
                return false;
            }
        }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SearchFileInfo.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/SearchFileInfo.cs
@@ -3,14 +3,14 @@ using System.IO;
 namespace YooAsset
 {
    /// <summary>
-    /// 搜索的文件信息，用于缓存文件校验流程
+    /// 搜索的文件信息，用于缓存文件校验流程。
    /// </summary>
    internal class SearchFileInfo
    {
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 缓存文件夹路径
@@ -33,15 +33,15 @@ namespace YooAsset
        public volatile int VerifyResultCode = 0;

        /// <summary>
-        /// 创建验证文件信息
+        /// 创建验证文件信息实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="folderPath">缓存文件夹路径</param>
        /// <param name="dataFilePath">数据文件路径</param>
        /// <param name="infoFilePath">信息文件路径</param>
-        public SearchFileInfo(string bundleGUID, string folderPath, string dataFilePath, string infoFilePath)
+        public SearchFileInfo(string bundleGuid, string folderPath, string dataFilePath, string infoFilePath)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            FolderPath = folderPath;
            DataFilePath = dataFilePath;
            InfoFilePath = infoFilePath;
@@ -58,8 +58,8 @@ namespace YooAsset
            }
            catch (System.Exception ex)
            {
-                YooLogger.Warning($"Failed to delete cache bundle folder: {ex}.");
+                YooLogger.LogWarning($"Failed to delete cache bundle folder: {ex}.");
            }
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/TempFileInfo.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/SandboxBundleCache/TempFileInfo.cs
@@ -2,41 +2,41 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 临时的文件信息，用于存储待验证的下载文件
+    /// 临时的文件信息，用于存储待验证的下载文件。
    /// </summary>
    internal class TempFileInfo
    {
        /// <summary>
        /// 临时文件路径
        /// </summary>
-        public string FilePath { private set; get; }
+        public string FilePath { get; private set; }

        /// <summary>
        /// 文件CRC校验值
        /// </summary>
-        public uint FileCRC { private set; get; }
+        public uint FileCrc { get; private set; }

        /// <summary>
        /// 文件大小（字节）
        /// </summary>
-        public long FileSize { private set; get; }
+        public long FileSize { get; private set; }

        /// <summary>
-        /// 验证结果码（原子操作对象，用于线程安全）
+        /// 验证结果码（原子操作对象，用于线程安全）。
        /// </summary>
        public volatile int VerifyResultCode = 0;

        /// <summary>
-        /// 创建临时文件信息
+        /// 创建临时文件信息实例
        /// </summary>
        /// <param name="filePath">临时文件路径</param>
-        /// <param name="fileCRC">文件CRC校验值</param>
+        /// <param name="fileCrc">文件CRC校验值</param>
        /// <param name="fileSize">文件大小（字节）</param>
-        public TempFileInfo(string filePath, uint fileCRC, long fileSize)
+        public TempFileInfo(string filePath, uint fileCrc, long fileSize)
        {
            FilePath = filePath;
-            FileCRC = fileCRC;
+            FileCrc = fileCrc;
            FileSize = fileSize;
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/Operations/WRBCInitializeOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/Operations/WRBCInitializeOperation.cs
@@ -4,13 +4,17 @@ namespace YooAsset
    /// <summary>
    /// Web远端文件缓存初始化操作
    /// </summary>
-    internal class WRBCInitializeOperation : BCInitializeOperation
+    internal sealed class WRBCInitializeOperation : BCInitializeOperation
    {
        private readonly WebRemoteBundleCache _fileCache;

-        public WRBCInitializeOperation(WebRemoteBundleCache cache)
+        /// <summary>
+        /// 创建 Web 远端缓存初始化操作实例
+        /// </summary>
+        /// <param name="fileCache">Web 远端文件缓存系统</param>
+        public WRBCInitializeOperation(WebRemoteBundleCache fileCache)
        {
-            _fileCache = cache;
+            _fileCache = fileCache;
        }
        protected override void InternalStart()
        {
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/Operations/WRBCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/Operations/WRBCLoadBundleOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// Web远端文件缓存加载 AssetBundle 操作
    /// </summary>
-    internal class WRBCLoadAssetBundleOperation : BCLoadBundleOperation
+    internal sealed class WRBCLoadAssetBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -20,6 +20,11 @@ namespace YooAsset
        private WebRemoteBundleCacheEntry _cacheEntry;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建 Web 远端 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="fileCache">Web 远端文件缓存系统</param>
+        /// <param name="options">加载资源包操作选项</param>
        public WRBCLoadAssetBundleOperation(WebRemoteBundleCache fileCache, BCLoadBundleOptions options)
        {
            _fileCache = fileCache;
@@ -52,17 +57,17 @@ namespace YooAsset
            {
                if (_loadWebAssetBundleOp == null)
                {
-                    var options = new LoadWebAssetBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _options.Bundle;
-                    options.CandidateUrls = _cacheEntry.URLs;
-                    options.AssetBundleDecryptor = _fileCache.Config.AssetBundleDecryptor;
-                    options.DownloadBackend = _fileCache.Config.DownloadBackend;
-                    options.DownloadVerifyLevel = _fileCache.Config.DownloadVerifyLevel;
-                    options.WatchdogTimeout = _fileCache.Config.WatchdogTimeout;
-                    options.DisableUnityWebCache = _fileCache.Config.DisableUnityWebCache;
-                    options.DownloadRetryPolicy = _fileCache.Config.DownloadRetryPolicy;
-                    options.DownloadUrlPolicy = _fileCache.Config.DownloadUrlPolicy;
+                    var options = new LoadWebAssetBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _options.Bundle,
+                        candidateUrls: _cacheEntry.URLs,
+                        assetBundleDecryptor: _fileCache.Config.AssetBundleDecryptor,
+                        downloadBackend: _fileCache.Config.DownloadBackend,
+                        downloadVerifyLevel: _fileCache.Config.DownloadVerifyLevel,
+                        watchdogTimeout: _fileCache.Config.WatchdogTimeout,
+                        disableUnityWebCache: _fileCache.Config.DisableUnityWebCache,
+                        downloadRetryPolicy: _fileCache.Config.DownloadRetryPolicy,
+                        downloadUrlPolicy: _fileCache.Config.DownloadUrlPolicy);

                    if (_options.Bundle.IsEncrypted)
                        _loadWebAssetBundleOp = new LoadWebEncryptedAssetBundleOperation(options);
@@ -99,7 +104,7 @@ namespace YooAsset
            {
                _steps = ESteps.Done;
                SetError($"{nameof(WebRemoteBundleCache)} does not support synchronous asset bundle loading.");
-                YooLogger.Error(Error);
+                YooLogger.LogError(Error);
            }
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/WebRemoteBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/WebRemoteBundleCache.cs
@@ -4,54 +4,68 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// Web远端文件缓存系统，用于从远程服务器加载资源
+    /// Web远端文件缓存系统，用于从远程服务器加载资源。
    /// </summary>
    internal class WebRemoteBundleCache : IBundleCache
    {
        /// <summary>
        /// Web远端文件缓存配置
        /// </summary>
-        internal struct Configuration
+        internal readonly struct Configuration
        {
            /// <summary>
            /// 看门狗超时时间
            /// </summary>
-            public int WatchdogTimeout { get; set; }
+            public int WatchdogTimeout { get; }

            /// <summary>
            /// 禁用Unity的网络缓存
            /// </summary>
-            public bool DisableUnityWebCache { get; set; }
+            public bool DisableUnityWebCache { get; }

            /// <summary>
            /// 下载数据校验级别
            /// </summary>
-            public EFileVerifyLevel DownloadVerifyLevel { get; set; }
+            public EFileVerifyLevel DownloadVerifyLevel { get; }

            /// <summary>
            /// AssetBundle 解密器
            /// </summary>
-            public IBundleDecryptor AssetBundleDecryptor { get; set; }
+            public IBundleDecryptor AssetBundleDecryptor { get; }

            /// <summary>
            /// 远程服务接口
            /// </summary>
-            public IRemoteService RemoteService { get; set; }
+            public IRemoteService RemoteService { get; }

            /// <summary>
            /// 下载后台接口
            /// </summary>
-            public IDownloadBackend DownloadBackend { get; set; }
+            public IDownloadBackend DownloadBackend { get; }

            /// <summary>
            /// 下载重试判定策略
            /// </summary>
-            public IDownloadRetryPolicy DownloadRetryPolicy { get; set; }
+            public IDownloadRetryPolicy DownloadRetryPolicy { get; }

            /// <summary>
            /// URL 选择策略
            /// </summary>
-            public IDownloadUrlPolicy DownloadUrlPolicy { get; set; }
+            public IDownloadUrlPolicy DownloadUrlPolicy { get; }
+
+            public Configuration(int watchdogTimeout, bool disableUnityWebCache, 
+                EFileVerifyLevel downloadVerifyLevel, IBundleDecryptor assetBundleDecryptor, IRemoteService remoteService, 
+                IDownloadBackend downloadBackend, IDownloadRetryPolicy downloadRetryPolicy, IDownloadUrlPolicy downloadUrlPolicy)
+            {
+                WatchdogTimeout = watchdogTimeout;
+                DisableUnityWebCache = disableUnityWebCache;
+                DownloadVerifyLevel = downloadVerifyLevel;
+                AssetBundleDecryptor = assetBundleDecryptor;
+                RemoteService = remoteService;
+                DownloadBackend = downloadBackend;
+                DownloadRetryPolicy = downloadRetryPolicy;
+                DownloadUrlPolicy = downloadUrlPolicy;
+            }
        }

        private readonly Dictionary<string, WebRemoteBundleCacheEntry> _cacheEntries = new Dictionary<string, WebRemoteBundleCacheEntry>(10000);
@@ -73,7 +87,7 @@ namespace YooAsset
        public string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        public bool IsReadOnly { get; }

@@ -113,46 +127,46 @@ namespace YooAsset
        {
        }
        /// <inheritdoc />
-        public virtual BCInitializeOperation InitializeAsync()
+        public BCInitializeOperation InitializeAsync()
        {
            var operation = new WRBCInitializeOperation(this);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
+        public BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
        {
            var operation = new BCWriteCacheCompleteOperation($"{nameof(WebRemoteBundleCache)} is readonly.");
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
+        public BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
        {
            var operation = new BCClearCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
+        public BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
        {
            var operation = new BCVerifyCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
+        public BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
        {
-            if (options.Bundle.BundleType == (int)EBundleType.AssetBundle)
+            if (options.Bundle.GetBundleType() == (int)EBundleType.AssetBundle)
            {
                var operation = new WRBCLoadAssetBundleOperation(this, options);
                return operation;
            }
            else
            {
-                string error = $"{nameof(WebRemoteBundleCache)} does not support bundle type: {options.Bundle.BundleType}.";
+                string error = $"{nameof(WebRemoteBundleCache)} does not support bundle type: {options.Bundle.GetBundleType()}.";
                var operation = new BCLoadBundleErrorOperation(error);
                return operation;
            }
        }
        /// <inheritdoc />
-        public virtual bool IsCached(string bundleGUID)
+        public bool IsCached(string bundleGuid)
        {
            return true;
        }
@@ -161,6 +175,8 @@ namespace YooAsset
        /// <summary>
        /// 获取或创建指定资源包的缓存条目
        /// </summary>
+        /// <param name="bundle">资源包描述</param>
+        /// <returns>已存在则返回对应条目；否则创建并登记后返回新条目。</returns>
        internal WebRemoteBundleCacheEntry GetEntry(PackageBundle bundle)
        {
            if (_cacheEntries.TryGetValue(bundle.BundleGuid, out WebRemoteBundleCacheEntry entry))
@@ -169,7 +185,7 @@ namespace YooAsset
            }
            else
            {
-                var urls = Config.RemoteService.GetRemoteUrls(bundle.FileName);
+                var urls = Config.RemoteService.GetRemoteUrls(bundle.GetFileName());
                var newEntry = new WebRemoteBundleCacheEntry(bundle.BundleGuid, urls);
                _cacheEntries.Add(bundle.BundleGuid, newEntry);
                return newEntry;
@@ -177,4 +193,4 @@ namespace YooAsset
        }
        #endregion
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/WebRemoteBundleCacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebRemoteBundleCache/WebRemoteBundleCacheEntry.cs
@@ -10,7 +10,7 @@ namespace YooAsset
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 候选下载地址列表
@@ -18,13 +18,13 @@ namespace YooAsset
        public IReadOnlyList<string> URLs { get; private set; }

        /// <summary>
-        /// 创建Web远端文件缓存条目
+        /// 创建 Web 远端文件缓存条目实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="urls">候选下载地址列表</param>
-        public WebRemoteBundleCacheEntry(string bundleGUID, IReadOnlyList<string> urls)
+        public WebRemoteBundleCacheEntry(string bundleGuid, IReadOnlyList<string> urls)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            URLs = urls;
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/Operations/WSBCInitializeOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/Operations/WSBCInitializeOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// Web服务器文件缓存初始化操作
    /// </summary>
-    internal class WSBCInitializeOperation : BCInitializeOperation
+    internal sealed class WSBCInitializeOperation : BCInitializeOperation
    {
        private enum ESteps
        {
@@ -18,9 +18,13 @@ namespace YooAsset
        private LoadBuiltinCatalogOperation _loadBuiltinCatalogOp;
        private ESteps _steps = ESteps.None;

-        public WSBCInitializeOperation(WebServerBundleCache cache)
+        /// <summary>
+        /// 创建 Web 服务器缓存初始化操作实例
+        /// </summary>
+        /// <param name="fileCache">Web 服务器文件缓存系统</param>
+        public WSBCInitializeOperation(WebServerBundleCache fileCache)
        {
-            _fileCache = cache;
+            _fileCache = fileCache;
        }
        protected override void InternalStart()
        {
@@ -35,10 +39,10 @@ namespace YooAsset
            {
                if (_loadBuiltinCatalogOp == null)
                {
-                    var options = new LoadBuiltinCatalogOptions();
-                    options.PackageName = _fileCache.PackageName;
-                    options.FilePath = _fileCache.GetCatalogBinaryFileLoadPath();
-                    options.DownloadBackend = _fileCache.Config.DownloadBackend;
+                    var options = new LoadBuiltinCatalogOptions(
+                        packageName: _fileCache.PackageName,
+                        filePath: _fileCache.GetCatalogBinaryFileLoadPath(),
+                        downloadBackend: _fileCache.Config.DownloadBackend);
                    _loadBuiltinCatalogOp = new LoadBuiltinCatalogOperation(options);
                    _loadBuiltinCatalogOp.StartOperation();
                    AddChildOperation(_loadBuiltinCatalogOp);
@@ -65,8 +69,8 @@ namespace YooAsset
                foreach (var fileEntry in catalog.Entries)
                {
                    string filePath = PathUtility.Combine(_fileCache.RootPath, fileEntry.FileName);
-                    var cacheEntry = new WebServerBundleCacheEntry(fileEntry.BundleGUID, filePath);
-                    _fileCache.AddEntry(fileEntry.BundleGUID, cacheEntry);
+                    var cacheEntry = new WebServerBundleCacheEntry(fileEntry.BundleGuid, filePath);
+                    _fileCache.AddEntry(fileEntry.BundleGuid, cacheEntry);
                }

                _steps = ESteps.Done;
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/Operations/WSBCLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/Operations/WSBCLoadBundleOperation.cs
@@ -4,7 +4,7 @@ namespace YooAsset
    /// <summary>
    /// Web服务器文件缓存加载 AssetBundle 操作
    /// </summary>
-    internal class WSBCLoadAssetBundleOperation : BCLoadBundleOperation
+    internal sealed class WSBCLoadAssetBundleOperation : BCLoadBundleOperation
    {
        private enum ESteps
        {
@@ -20,6 +20,11 @@ namespace YooAsset
        private WebServerBundleCacheEntry _cacheEntry;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建 Web 服务器 AssetBundle 加载操作实例
+        /// </summary>
+        /// <param name="fileCache">Web 服务器文件缓存系统</param>
+        /// <param name="options">加载资源包操作选项</param>
        public WSBCLoadAssetBundleOperation(WebServerBundleCache fileCache, BCLoadBundleOptions options)
        {
            _fileCache = fileCache;
@@ -53,17 +58,17 @@ namespace YooAsset
                if (_loadWebAssetBundleOp == null)
                {
                    string url = DownloadUrlHelper.ToLocalFileUrl(_cacheEntry.FilePath);
-                    var options = new LoadWebAssetBundleOptions();
-                    options.CacheName = _fileCache.GetType().Name;
-                    options.Bundle = _options.Bundle;
-                    options.CandidateUrls = new[] { url };
-                    options.AssetBundleDecryptor = _fileCache.Config.AssetBundleDecryptor;
-                    options.DownloadBackend = _fileCache.Config.DownloadBackend;
-                    options.DownloadVerifyLevel = _fileCache.Config.DownloadVerifyLevel;
-                    options.WatchdogTimeout = _fileCache.Config.WatchdogTimeout;
-                    options.DisableUnityWebCache = _fileCache.Config.DisableUnityWebCache;
-                    options.DownloadRetryPolicy = _fileCache.Config.DownloadRetryPolicy;
-                    options.DownloadUrlPolicy = _fileCache.Config.DownloadUrlPolicy;
+                    var options = new LoadWebAssetBundleOptions(
+                        cacheName: _fileCache.GetType().Name,
+                        bundle: _options.Bundle,
+                        candidateUrls: new[] { url },
+                        assetBundleDecryptor: _fileCache.Config.AssetBundleDecryptor,
+                        downloadBackend: _fileCache.Config.DownloadBackend,
+                        downloadVerifyLevel: _fileCache.Config.DownloadVerifyLevel,
+                        watchdogTimeout: _fileCache.Config.WatchdogTimeout,
+                        disableUnityWebCache: _fileCache.Config.DisableUnityWebCache,
+                        downloadRetryPolicy: _fileCache.Config.DownloadRetryPolicy,
+                        downloadUrlPolicy: _fileCache.Config.DownloadUrlPolicy);

                    if (_options.Bundle.IsEncrypted)
                        _loadWebAssetBundleOp = new LoadWebEncryptedAssetBundleOperation(options);
@@ -100,7 +105,7 @@ namespace YooAsset
            {
                _steps = ESteps.Done;
                SetError($"{nameof(WebServerBundleCache)} does not support synchronous asset bundle loading.");
-                YooLogger.Error(Error);
+                YooLogger.LogError(Error);
            }
        }
    }
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/WebServerBundleCache.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/WebServerBundleCache.cs
@@ -4,49 +4,62 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// Web服务器文件缓存系统，用于WebGL平台从服务器加载资源
+    /// Web服务器文件缓存系统，用于WebGL平台从服务器加载资源。
    /// </summary>
    internal class WebServerBundleCache : IBundleCache
    {
        /// <summary>
        /// Web服务器文件缓存配置
        /// </summary>
-        internal struct Configuration
+        internal readonly struct Configuration
        {
            /// <summary>
            /// 看门狗超时时间
            /// </summary>
-            public int WatchdogTimeout { get; set; }
+            public int WatchdogTimeout { get; }

            /// <summary>
            /// 禁用Unity的网络缓存
            /// </summary>
-            public bool DisableUnityWebCache { get; set; }
+            public bool DisableUnityWebCache { get; }

            /// <summary>
            /// 下载数据校验级别
            /// </summary>
-            public EFileVerifyLevel DownloadVerifyLevel { get; set; }
+            public EFileVerifyLevel DownloadVerifyLevel { get; }

            /// <summary>
            /// AssetBundle 解密器
            /// </summary>
-            public IBundleDecryptor AssetBundleDecryptor { get; set; }
+            public IBundleDecryptor AssetBundleDecryptor { get; }

            /// <summary>
            /// 下载后台
            /// </summary>
-            public IDownloadBackend DownloadBackend { get; set; }
+            public IDownloadBackend DownloadBackend { get; }

            /// <summary>
            /// 下载重试判定策略
            /// </summary>
-            public IDownloadRetryPolicy DownloadRetryPolicy { get; set; }
+            public IDownloadRetryPolicy DownloadRetryPolicy { get; }

            /// <summary>
            /// URL 选择策略
            /// </summary>
-            public IDownloadUrlPolicy DownloadUrlPolicy { get; set; }
+            public IDownloadUrlPolicy DownloadUrlPolicy { get; }
+
+            public Configuration(int watchdogTimeout, bool disableUnityWebCache, 
+                EFileVerifyLevel downloadVerifyLevel, IBundleDecryptor assetBundleDecryptor, 
+                IDownloadBackend downloadBackend, IDownloadRetryPolicy downloadRetryPolicy, IDownloadUrlPolicy downloadUrlPolicy)
+            {
+                WatchdogTimeout = watchdogTimeout;
+                DisableUnityWebCache = disableUnityWebCache;
+                DownloadVerifyLevel = downloadVerifyLevel;
+                AssetBundleDecryptor = assetBundleDecryptor;
+                DownloadBackend = downloadBackend;
+                DownloadRetryPolicy = downloadRetryPolicy;
+                DownloadUrlPolicy = downloadUrlPolicy;
+            }
        }

        private readonly Dictionary<string, WebServerBundleCacheEntry> _cacheEntries = new Dictionary<string, WebServerBundleCacheEntry>(10000);
@@ -68,7 +81,7 @@ namespace YooAsset
        public string RootPath { get; }

        /// <summary>
-        /// 只读属性
+        /// 是否为只读缓存
        /// </summary>
        public bool IsReadOnly { get; }

@@ -108,57 +121,59 @@ namespace YooAsset
        {
        }
        /// <inheritdoc />
-        public virtual BCInitializeOperation InitializeAsync()
+        public BCInitializeOperation InitializeAsync()
        {
            var operation = new WSBCInitializeOperation(this);
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
+        public BCWriteCacheOperation WriteCacheAsync(BCWriteCacheOptions options)
        {
            var operation = new BCWriteCacheCompleteOperation($"{nameof(WebServerBundleCache)} is readonly.");
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
+        public BCClearCacheOperation ClearCacheAsync(BCClearCacheOptions options)
        {
            var operation = new BCClearCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
+        public BCVerifyCacheOperation VerifyCacheAsync(BCVerifyCacheOptions options)
        {
            var operation = new BCVerifyCacheCompleteOperation();
            return operation;
        }
        /// <inheritdoc />
-        public virtual BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
+        public BCLoadBundleOperation LoadBundleAsync(BCLoadBundleOptions options)
        {
-            if (options.Bundle.BundleType == (int)EBundleType.AssetBundle)
+            if (options.Bundle.GetBundleType() == (int)EBundleType.AssetBundle)
            {
                var operation = new WSBCLoadAssetBundleOperation(this, options);
                return operation;
            }
            else
            {
-                string error = $"{nameof(WebServerBundleCache)} does not support bundle type: {options.Bundle.BundleType}.";
+                string error = $"{nameof(WebServerBundleCache)} does not support bundle type: {options.Bundle.GetBundleType()}.";
                var operation = new BCLoadBundleErrorOperation(error);
                return operation;
            }
        }
        /// <inheritdoc />
-        public virtual bool IsCached(string bundleGUID)
+        public bool IsCached(string bundleGuid)
        {
-            return _cacheEntries.ContainsKey(bundleGUID);
+            return _cacheEntries.ContainsKey(bundleGuid);
        }

        #region 内部方法
        /// <summary>
        /// 获取指定缓存条目
        /// </summary>
-        internal WebServerBundleCacheEntry GetEntry(string bundleGUID)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <returns>对应的 Web 服务器缓存条目</returns>
+        internal WebServerBundleCacheEntry GetEntry(string bundleGuid)
        {
-            if (_cacheEntries.TryGetValue(bundleGUID, out WebServerBundleCacheEntry entry))
+            if (_cacheEntries.TryGetValue(bundleGuid, out WebServerBundleCacheEntry entry))
                return entry;
            else
                return null;
@@ -167,21 +182,24 @@ namespace YooAsset
        /// <summary>
        /// 添加指定缓存条目
        /// </summary>
-        internal void AddEntry(string bundleGUID, WebServerBundleCacheEntry cacheEntry)
+        /// <param name="bundleGuid">资源包 GUID</param>
+        /// <param name="cacheEntry">Web 服务器缓存条目</param>
+        internal void AddEntry(string bundleGuid, WebServerBundleCacheEntry cacheEntry)
        {
-            if (_cacheEntries.ContainsKey(bundleGUID))
-                throw new YooInternalException($"Cache entry already exists: '{bundleGUID}'.");
+            if (_cacheEntries.ContainsKey(bundleGuid))
+                throw new YooInternalException($"Cache entry already exists: '{bundleGuid}'.");

-            _cacheEntries.Add(bundleGUID, cacheEntry);
+            _cacheEntries.Add(bundleGuid, cacheEntry);
        }

        /// <summary>
        /// 获取Catalog文件加载路径
        /// </summary>
+        /// <returns>文件的完整加载路径</returns>
        internal string GetCatalogBinaryFileLoadPath()
        {
            return PathUtility.Combine(RootPath, BuiltinCatalogConsts.BinaryFileName);
        }
        #endregion
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/WebServerBundleCacheEntry.cs
+++ b/Assets/YooAsset/Runtime/BundleCache/Services/WebServerBundleCache/WebServerBundleCacheEntry.cs
@@ -9,7 +9,7 @@ namespace YooAsset
        /// <summary>
        /// 资源包唯一标识
        /// </summary>
-        public string BundleGUID { get; private set; }
+        public string BundleGuid { get; private set; }

        /// <summary>
        /// 资源包文件路径
@@ -17,13 +17,13 @@ namespace YooAsset
        public string FilePath { get; private set; }

        /// <summary>
-        /// 创建Web服务器文件缓存条目
+        /// 创建 Web 服务器文件缓存条目实例
        /// </summary>
-        /// <param name="bundleGUID">资源包唯一标识</param>
+        /// <param name="bundleGuid">资源包唯一标识</param>
        /// <param name="filePath">资源包文件路径</param>
-        public WebServerBundleCacheEntry(string bundleGUID, string filePath)
+        public WebServerBundleCacheEntry(string bundleGuid, string filePath)
        {
-            BundleGUID = bundleGUID;
+            BundleGuid = bundleGuid;
            FilePath = filePath;
        }
    }
--- a/Assets/YooAsset/Runtime/BundleHandle/EBundleType.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/EBundleType.cs
@@ -2,14 +2,14 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 资源包类型枚举
+    /// 资源包的类型
    /// </summary>
    public enum EBundleType
    {
        /// <summary>
-        /// 未知类型
+        /// 未指定类型
        /// </summary>
-        Unknown = 0,
+        None = 0,

        /// <summary>
        /// 虚拟资源包
--- a/Assets/YooAsset/Runtime/BundleHandle/Interfaces/IBundleHandle.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Interfaces/IBundleHandle.cs
@@ -3,7 +3,7 @@ using UnityEngine.SceneManagement;
 namespace YooAsset
 {
    /// <summary>
-    /// 资源包句柄接口，提供对已加载资源包的操作能力
+    /// 资源包句柄接口，提供对已加载资源包的操作能力。
    /// </summary>
    internal interface IBundleHandle
    {
@@ -18,33 +18,33 @@ namespace YooAsset
        void UnloadBundle();

        /// <summary>
-        /// 异步加载指定的主资源对象
+        /// 加载指定的主资源对象
        /// </summary>
        /// <param name="assetInfo">待加载资源的描述信息</param>
        /// <returns>用于跟踪加载过程的异步操作对象</returns>
        BHLoadAssetOperation LoadAssetAsync(AssetInfo assetInfo);

        /// <summary>
-        /// 异步加载资源包内的全部资源对象
+        /// 加载资源包内的全部资源对象
        /// </summary>
        /// <param name="assetInfo">待加载资源的描述信息</param>
        /// <returns>用于跟踪加载过程的异步操作对象</returns>
        BHLoadAllAssetsOperation LoadAllAssetsAsync(AssetInfo assetInfo);

        /// <summary>
-        /// 异步加载指定资源对应的全部子资源对象
+        /// 加载指定资源对应的全部子资源对象
        /// </summary>
        /// <param name="assetInfo">待加载资源的描述信息</param>
        /// <returns>用于跟踪加载过程的异步操作对象</returns>
        BHLoadSubAssetsOperation LoadSubAssetsAsync(AssetInfo assetInfo);

        /// <summary>
-        /// 异步加载指定的场景资源
+        /// 加载指定的场景资源
        /// </summary>
        /// <param name="assetInfo">待加载场景的资源信息</param>
-        /// <param name="loadSceneParams">场景加载参数</param>
+        /// <param name="loadSceneParams">场景加载选项</param>
        /// <param name="allowSceneActivation">是否允许场景在加载完成后立即激活</param>
        /// <returns>用于跟踪场景加载过程的异步操作对象</returns>
        BHLoadSceneOperation LoadSceneAsync(AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool allowSceneActivation);
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleHandle/Operations/BHLoadSceneOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Operations/BHLoadSceneOperation.cs
@@ -14,6 +14,14 @@ namespace YooAsset
        /// <summary>
        /// 允许场景在加载完成后进入激活阶段
        /// </summary>
-        public abstract void AllowSceneActivation();
+        public void AllowSceneActivation()
+        {
+            InternalAllowSceneActivation();
+        }
+
+        /// <summary>
+        /// 执行场景激活的方法
+        /// </summary>
+        protected abstract void InternalAllowSceneActivation();
    }
 }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/AssetBundleHandle.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/AssetBundleHandle.cs
@@ -7,7 +7,7 @@ namespace YooAsset
    /// <summary>
    /// AssetBundle资源包句柄
    /// </summary>
-    internal class AssetBundleHandle : IBundleHandle
+    internal sealed class AssetBundleHandle : IBundleHandle
    {
        private readonly string _bundleFilePath;
        private readonly PackageBundle _packageBundle;
@@ -22,6 +22,13 @@ namespace YooAsset
            get { return _bundleFilePath; }
        }

+        /// <summary>
+        /// 创建AssetBundle资源包句柄实例
+        /// </summary>
+        /// <param name="bundleFilePath">资源包文件的本地路径</param>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetBundle">已加载的 Unity AssetBundle 对象</param>
+        /// <param name="bundleStream">加载 AssetBundle 时使用的文件流</param>
        public AssetBundleHandle(string bundleFilePath, PackageBundle packageBundle, AssetBundle assetBundle, Stream bundleStream)
        {
            _bundleFilePath = bundleFilePath;
@@ -42,7 +49,6 @@ namespace YooAsset

            if (_bundleStream != null)
            {
-                _bundleStream.Close();
                _bundleStream.Dispose();
            }
        }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadAllAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadAllAssetsOperation.cs
@@ -3,11 +3,11 @@ using UnityEngine;
 namespace YooAsset
 {
    /// <summary>
-    /// AssetBundle的加载所有资源操作
+    /// 从 AssetBundle 中加载全部资源对象
    /// </summary>
-    internal class ABHLoadAllAssetsOperation : BHLoadAllAssetsOperation
+    internal sealed class ABHLoadAllAssetsOperation : BHLoadAllAssetsOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -22,6 +22,12 @@ namespace YooAsset
        private AssetBundleRequest _request;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetBundle">已加载的 Unity AssetBundle 对象</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public ABHLoadAllAssetsOperation(PackageBundle packageBundle, AssetBundle assetBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -42,7 +48,7 @@ namespace YooAsset
                if (_assetBundle == null)
                {
                    _steps = ESteps.Done;
-                    SetError($"The bundle {_packageBundle.BundleName} has been destroyed due to Unity engine bugs.");
+                    SetError($"Bundle '{_packageBundle.BundleName}' has been destroyed due to Unity engine bugs.");
                    return;
                }

@@ -77,7 +83,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 强制挂起主线程（注意：该操作会很耗时）
-                        YooLogger.Warning("Blocking the main thread while loading Unity assets.");
+                        YooLogger.LogWarning("Blocking the main thread while loading Unity assets.");
                        Result = _request.allAssets;
                    }
                    else
@@ -93,13 +99,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load all assets: {_assetInfo.AssetPath} AssetType: null AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load all assets: '{_assetInfo.AssetPath}' AssetType: null AssetBundle: '{_packageBundle.BundleName}'.";
                    else
-                        error = $"Failed to load all assets: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType} AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load all assets: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType} AssetBundle: '{_packageBundle.BundleName}'.";
                  
                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(error);
+                    YooLogger.LogError(error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadAssetOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadAssetOperation.cs
@@ -3,11 +3,11 @@ using UnityEngine;
 namespace YooAsset
 {
    /// <summary>
-    /// AssetBundle的加载单个资源操作
+    /// 从 AssetBundle 中加载单个资源对象
    /// </summary>
-    internal class ABHLoadAssetOperation : BHLoadAssetOperation
+    internal sealed class ABHLoadAssetOperation : BHLoadAssetOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -22,6 +22,12 @@ namespace YooAsset
        private AssetBundleRequest _request;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetBundle">已加载的 Unity AssetBundle 对象</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public ABHLoadAssetOperation(PackageBundle packageBundle, AssetBundle assetBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -42,7 +48,7 @@ namespace YooAsset
                if (_assetBundle == null)
                {
                    _steps = ESteps.Done;
-                    SetError($"The bundle {_packageBundle.BundleName} has been destroyed due to Unity engine bugs.");
+                    SetError($"Bundle '{_packageBundle.BundleName}' has been destroyed due to Unity engine bugs.");
                    return;
                }

@@ -77,7 +83,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 强制挂起主线程（注意：该操作会很耗时）
-                        YooLogger.Warning("Blocking the main thread while loading a Unity asset.");
+                        YooLogger.LogWarning("Blocking the main thread while loading a Unity asset.");
                        Result = _request.asset;
                    }
                    else
@@ -93,13 +99,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load asset: {_assetInfo.AssetPath} AssetType: null AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load asset: '{_assetInfo.AssetPath}' AssetType: null AssetBundle: '{_packageBundle.BundleName}'.";
                    else
-                        error = $"Failed to load asset: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType} AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load asset: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType} AssetBundle: '{_packageBundle.BundleName}'.";

                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(Error);
+                    YooLogger.LogError(Error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadSceneOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadSceneOperation.cs
@@ -4,11 +4,11 @@ using UnityEngine.SceneManagement;
 namespace YooAsset
 {
    /// <summary>
-    /// AssetBundle的场景加载操作
+    /// 从 AssetBundle 中加载场景资源
    /// </summary>
-    internal class ABHLoadSceneOperation : BHLoadSceneOperation
+    internal sealed class ABHLoadSceneOperation : BHLoadSceneOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            LoadScene,
@@ -22,6 +22,12 @@ namespace YooAsset
        private AsyncOperation _asyncOperation;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="assetInfo">待加载场景信息</param>
+        /// <param name="loadSceneParams">控制场景加载的选项</param>
+        /// <param name="allowSceneActivation">是否允许场景在加载完成后立即激活</param>
        public ABHLoadSceneOperation(AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool allowSceneActivation)
        {
            _assetInfo = assetInfo;
@@ -60,8 +66,8 @@ namespace YooAsset
                    else
                    {
                        _steps = ESteps.Done;
-                        SetError($"Failed to load scene: {_assetInfo.AssetPath}");
-                        YooLogger.Error(Error);
+                        SetError($"Failed to load scene: '{_assetInfo.AssetPath}'.");
+                        YooLogger.LogError(Error);
                    }
                }
            }
@@ -73,7 +79,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 注意：场景加载无法强制异步转同步
-                        YooLogger.Error("The scene is already loading asynchronously.");
+                        YooLogger.LogError("The scene is already loading asynchronously.");
                    }
                    else
                    {
@@ -98,8 +104,8 @@ namespace YooAsset
                else
                {
                    _steps = ESteps.Done;
-                    SetError($"The loaded scene is invalid: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Loaded scene is invalid: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                }
            }
        }
@@ -108,7 +114,7 @@ namespace YooAsset
            //注意：场景加载不支持异步转同步，为了支持同步加载方法需要实现该方法！
            ExecuteOnce();
        }
-        public override void AllowSceneActivation()
+        protected override void InternalAllowSceneActivation()
        {
            _allowSceneActivation = true;
        }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadSubAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/AssetBundleHandle/Operations/ABHLoadSubAssetsOperation.cs
@@ -3,11 +3,11 @@ using UnityEngine;
 namespace YooAsset
 {
    /// <summary>
-    /// AssetBundle的加载子资源操作
+    /// 从 AssetBundle 中加载指定资源的全部子资源对象
    /// </summary>
-    internal class ABHLoadSubAssetsOperation : BHLoadSubAssetsOperation
+    internal sealed class ABHLoadSubAssetsOperation : BHLoadSubAssetsOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -22,6 +22,12 @@ namespace YooAsset
        private AssetBundleRequest _request;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetBundle">已加载的 Unity AssetBundle 对象</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public ABHLoadSubAssetsOperation(PackageBundle packageBundle, AssetBundle assetBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -42,7 +48,7 @@ namespace YooAsset
                if (_assetBundle == null)
                {
                    _steps = ESteps.Done;
-                    SetError($"The bundle {_packageBundle.BundleName} has been destroyed due to Unity engine bugs.");
+                    SetError($"Bundle '{_packageBundle.BundleName}' has been destroyed due to Unity engine bugs.");
                    return;
                }

@@ -77,7 +83,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 强制挂起主线程（注意：该操作会很耗时）
-                        YooLogger.Warning("Blocking the main thread while loading Unity assets.");
+                        YooLogger.LogWarning("Blocking the main thread while loading Unity assets.");
                        Result = _request.allAssets;
                    }
                    else
@@ -93,13 +99,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load sub-assets: {_assetInfo.AssetPath} AssetType: null AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load sub-assets: '{_assetInfo.AssetPath}' AssetType: null AssetBundle: '{_packageBundle.BundleName}'.";
                    else
-                        error = $"Failed to load sub-assets: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType} AssetBundle: {_packageBundle.BundleName}";
+                        error = $"Failed to load sub-assets: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType} AssetBundle: '{_packageBundle.BundleName}'.";

                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(error);
+                    YooLogger.LogError(error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadAllAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadAllAssetsOperation.cs
@@ -2,9 +2,9 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 原生资源包的加载所有资源操作（不支持）
+    /// 全部资源加载操作（原生资源包不支持）
    /// </summary>
-    internal class RBHLoadAllAssetsOperation : BHLoadAllAssetsOperation
+    internal sealed class RBHLoadAllAssetsOperation : BHLoadAllAssetsOperation
    {
        protected override void InternalStart()
        {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadAssetOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadAssetOperation.cs
@@ -2,11 +2,11 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 原生资源包的加载单个资源操作
+    /// 从原生资源包中加载单个资源对象
    /// </summary>
-    internal class RBHLoadAssetOperation : BHLoadAssetOperation
+    internal sealed class RBHLoadAssetOperation : BHLoadAssetOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            LoadObject,
@@ -19,6 +19,12 @@ namespace YooAsset
        private readonly AssetInfo _assetInfo;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="rawBundle">已加载的原生资源包数据对象</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public RBHLoadAssetOperation(PackageBundle packageBundle, RawBundle rawBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -45,8 +51,8 @@ namespace YooAsset
                if (Result == null)
                {
                    _steps = ESteps.Done;
-                    SetError($"Failed to load raw file object: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Failed to load raw file object: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                }
                else
                {
@@ -55,5 +61,9 @@ namespace YooAsset
                }
            }
        }
+        protected override void InternalWaitForCompletion()
+        {
+            ExecuteBatch();
+        }
    }
 }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadSceneOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadSceneOperation.cs
@@ -2,9 +2,9 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 原生资源包的场景加载操作（不支持）
+    /// 场景加载操作（原生资源包不支持）
    /// </summary>
-    internal class RBHLoadSceneOperation : BHLoadSceneOperation
+    internal sealed class RBHLoadSceneOperation : BHLoadSceneOperation
    {
        protected override void InternalStart()
        {
@@ -13,7 +13,7 @@ namespace YooAsset
        protected override void InternalUpdate()
        {
        }
-        public override void AllowSceneActivation()
+        protected override void InternalAllowSceneActivation()
        {
        }
    }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadSubAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/Operations/RBHLoadSubAssetsOperation.cs
@@ -2,9 +2,9 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 原生资源包的加载子资源操作（不支持）
+    /// 子资源加载操作（原生资源包不支持）
    /// </summary>
-    internal class RBHLoadSubAssetsOperation : BHLoadSubAssetsOperation
+    internal sealed class RBHLoadSubAssetsOperation : BHLoadSubAssetsOperation
    {
        protected override void InternalStart()
        {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawBundle.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawBundle.cs
@@ -1,25 +1,37 @@
+using System;

 namespace YooAsset
 {
    /// <summary>
    /// 封装原生文件字节数据的资源包对象
    /// </summary>
-    public class RawBundle
+    internal class RawBundle
    {
        private byte[] _bytes;
+        private RawFileObject _cachedObject;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="bytes">原生文件的字节数据</param>
        public RawBundle(byte[] bytes)
        {
+            if (bytes == null)
+                throw new ArgumentNullException(nameof(bytes));
            _bytes = bytes;
        }

        /// <summary>
-        /// 根据当前字节数据创建可访问的原生文件对象
+        /// 创建基于当前字节数据的原生文件对象
        /// </summary>
        /// <returns>创建得到的原生文件对象</returns>
        public RawFileObject CreateRawFileObject()
        {
-            return RawFileObject.CreateFromBytes(_bytes);
+            if (_bytes == null)
+                throw new InvalidOperationException($"{nameof(RawBundle)} has been unloaded.");
+            if (_cachedObject == null)
+                _cachedObject = RawFileObject.CreateFromBytes(_bytes);
+            return _cachedObject;
        }

        /// <summary>
@@ -27,6 +39,12 @@ namespace YooAsset
        /// </summary>
        public void Unload()
        {
+            if (_cachedObject != null)
+            {
+                _cachedObject.Release();
+                UnityEngine.Object.Destroy(_cachedObject);
+                _cachedObject = null;
+            }
            _bytes = null;
        }
    }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawBundleHandle.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawBundleHandle.cs
@@ -5,7 +5,7 @@ namespace YooAsset
    /// <summary>
    /// 原生资源包句柄
    /// </summary>
-    internal class RawBundleHandle : IBundleHandle
+    internal sealed class RawBundleHandle : IBundleHandle
    {
        private readonly string _bundleFilePath;
        private readonly PackageBundle _packageBundle;
@@ -19,6 +19,12 @@ namespace YooAsset
            get { return _bundleFilePath; }
        }

+        /// <summary>
+        /// 创建原生资源包句柄实例
+        /// </summary>
+        /// <param name="bundleFilePath">资源包文件的本地路径</param>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="rawBundle">已加载的原生资源包数据对象</param>
        public RawBundleHandle(string bundleFilePath, PackageBundle packageBundle, RawBundle rawBundle)
        {
            _bundleFilePath = bundleFilePath;
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawFileObject.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/RawBundleHandle/RawFileObject.cs
@@ -1,10 +1,11 @@
+using System;
 using System.Text;
 using UnityEngine;

 namespace YooAsset
 {
    /// <summary>
-    /// 用于访问原生文件字节数据及文本内容的对象
+    /// 原生文件对象
    /// </summary>
    public class RawFileObject : ScriptableObject
    {
@@ -12,36 +13,69 @@ namespace YooAsset
        private string _fileText;

        /// <summary>
-        /// 原生文件的字节数据
+        /// 获取原生文件的字节数据
        /// </summary>
-        public byte[] Bytes => _fileBytes;
-
-        /// <summary>
-        /// 以UTF-8编码解析得到的文本内容
-        /// </summary>
-        public string Text
+        /// <returns>原生文件字节数据的副本</returns>
+        public byte[] GetBytes()
        {
-            get
-            {
-                if (_fileBytes == null || _fileBytes.Length == 0)
-                    return null;
-
-                if (string.IsNullOrEmpty(_fileText))
-                    _fileText = Encoding.UTF8.GetString(_fileBytes);
-                return _fileText;
-            }
+            if (_fileBytes == null)
+                return null;
+            var copy = new byte[_fileBytes.Length];
+            System.Buffer.BlockCopy(_fileBytes, 0, copy, 0, _fileBytes.Length);
+            return copy;
        }

        /// <summary>
-        /// 根据字节数据创建原生文件对象实例
+        /// 获取以 UTF-8 编码解析的文本内容
+        /// </summary>
+        /// <returns>解析后的文本字符串</returns>
+        public string GetText()
+        {
+            if (_fileBytes == null || _fileBytes.Length == 0)
+                return null;
+
+            if (string.IsNullOrEmpty(_fileText))
+                _fileText = Encoding.UTF8.GetString(_fileBytes);
+            return _fileText;
+        }
+
+#if UNITY_2021_2_OR_NEWER
+        /// <summary>
+        /// 获取原生文件的只读字节数据
+        /// </summary>
+        /// <remarks>
+        /// 返回的数据直接引用内部数组，调用方不应在资源包卸载后继续使用。
+        /// </remarks>
+        /// <returns>原生文件的只读字节数据</returns>
+        public ReadOnlySpan<byte> GetBytesAsReadOnlySpan()
+        {
+            if (_fileBytes == null)
+                return ReadOnlySpan<byte>.Empty;
+            return new ReadOnlySpan<byte>(_fileBytes);
+        }
+#endif
+
+        /// <summary>
+        /// 释放内部持有的字节数据和文本缓存
+        /// </summary>
+        internal void Release()
+        {
+            _fileBytes = null;
+            _fileText = null;
+        }
+
+        /// <summary>
+        /// 创建基于指定字节数据的原生文件对象实例
        /// </summary>
        /// <param name="bytes">原生文件的字节数据</param>
        /// <returns>创建得到的原生文件对象</returns>
-        public static RawFileObject CreateFromBytes(byte[] bytes)
+        internal static RawFileObject CreateFromBytes(byte[] bytes)
        {
+            if (bytes == null)
+                throw new ArgumentNullException(nameof(bytes));
            var obj = CreateInstance<RawFileObject>();
            obj._fileBytes = bytes;
            return obj;
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadAllAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadAllAssetsOperation.cs
@@ -3,11 +3,11 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 虚拟资源包的加载所有资源操作
+    /// 通过 AssetDatabase 加载全部资源对象（仅编辑器模式）
    /// </summary>
-    internal class VBHLoadAllAssetsOperation : BHLoadAllAssetsOperation
+    internal sealed class VBHLoadAllAssetsOperation : BHLoadAllAssetsOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -20,6 +20,11 @@ namespace YooAsset
        private readonly AssetInfo _assetInfo;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public VBHLoadAllAssetsOperation(PackageBundle packageBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -47,8 +52,8 @@ namespace YooAsset
                if (string.IsNullOrEmpty(guid))
                {
                    _steps = ESteps.Done;
-                    SetError($"Asset not found: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Asset not found: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                    return;
                }

@@ -90,13 +95,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load all assets: {_assetInfo.AssetPath} AssetType: null";
+                        error = $"Failed to load all assets: '{_assetInfo.AssetPath}' AssetType: null.";
                    else
-                        error = $"Failed to load all assets: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType}";
+                        error = $"Failed to load all assets: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType}.";

                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(error);
+                    YooLogger.LogError(error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadAssetOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadAssetOperation.cs
@@ -2,11 +2,11 @@
 namespace YooAsset
 {
    /// <summary>
-    /// 虚拟资源包的加载单个资源操作
+    /// 通过 AssetDatabase 加载单个资源对象（仅编辑器模式）
    /// </summary>
-    internal class VBHLoadAssetOperation : BHLoadAssetOperation
+    internal sealed class VBHLoadAssetOperation : BHLoadAssetOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -19,6 +19,11 @@ namespace YooAsset
        private readonly AssetInfo _assetInfo;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public VBHLoadAssetOperation(PackageBundle packageBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -46,8 +51,8 @@ namespace YooAsset
                if (string.IsNullOrEmpty(guid))
                {
                    _steps = ESteps.Done;
-                    SetError($"Asset not found: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Asset not found: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                    return;
                }

@@ -69,13 +74,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load asset object: {_assetInfo.AssetPath} AssetType: null";
+                        error = $"Failed to load asset: '{_assetInfo.AssetPath}' AssetType: null.";
                    else
-                        error = $"Failed to load asset object: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType}";
+                        error = $"Failed to load asset: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType}.";

                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(error);
+                    YooLogger.LogError(error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadSceneOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadSceneOperation.cs
@@ -4,11 +4,11 @@ using UnityEngine.SceneManagement;
 namespace YooAsset
 {
    /// <summary>
-    /// 虚拟资源包的场景加载操作
+    /// 通过 EditorSceneManager 加载场景资源（仅编辑器模式）
    /// </summary>
-    internal class VBHLoadSceneOperation : BHLoadSceneOperation
+    internal sealed class VBHLoadSceneOperation : BHLoadSceneOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            LoadScene,
@@ -17,15 +17,21 @@ namespace YooAsset
        }

        private readonly AssetInfo _assetInfo;
-        private readonly LoadSceneParameters _loadParams;
+        private readonly LoadSceneParameters _loadSceneParams;
        private bool _allowSceneActivation;
        private AsyncOperation _asyncOperation;
        private ESteps _steps = ESteps.None;

-        public VBHLoadSceneOperation(AssetInfo assetInfo, LoadSceneParameters loadParams, bool allowSceneActivation)
+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="assetInfo">待加载场景信息</param>
+        /// <param name="loadSceneParams">控制场景加载的选项</param>
+        /// <param name="allowSceneActivation">是否允许场景在加载完成后立即激活</param>
+        public VBHLoadSceneOperation(AssetInfo assetInfo, LoadSceneParameters loadSceneParams, bool allowSceneActivation)
        {
            _assetInfo = assetInfo;
-            _loadParams = loadParams;
+            _loadSceneParams = loadSceneParams;
            _allowSceneActivation = allowSceneActivation;
        }
        protected override void InternalStart()
@@ -47,12 +53,12 @@ namespace YooAsset
            {
                if (IsWaitForCompletion)
                {
-                    Result = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneInPlayMode(_assetInfo.AssetPath, _loadParams);
+                    Result = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneInPlayMode(_assetInfo.AssetPath, _loadSceneParams);
                    _steps = ESteps.CheckResult;
                }
                else
                {
-                    _asyncOperation = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneAsyncInPlayMode(_assetInfo.AssetPath, _loadParams);
+                    _asyncOperation = UnityEditor.SceneManagement.EditorSceneManager.LoadSceneAsyncInPlayMode(_assetInfo.AssetPath, _loadSceneParams);
                    if (_asyncOperation != null)
                    {
                        _asyncOperation.allowSceneActivation = _allowSceneActivation;
@@ -63,9 +69,8 @@ namespace YooAsset
                    else
                    {
                        _steps = ESteps.Done;
-                        SetError($"Failed to load scene: {_assetInfo.AssetPath}");
-                        YooLogger.Error(Error);
-                        return;
+                        SetError($"Failed to load scene: '{_assetInfo.AssetPath}'.");
+                        YooLogger.LogError(Error);
                    }
                }
            }
@@ -77,7 +82,7 @@ namespace YooAsset
                    if (IsWaitForCompletion)
                    {
                        // 注意：场景加载无法强制异步转同步
-                        YooLogger.Error("The scene is already loading asynchronously.");
+                        YooLogger.LogError("The scene is already loading asynchronously.");
                    }
                    else
                    {
@@ -102,8 +107,8 @@ namespace YooAsset
                else
                {
                    _steps = ESteps.Done;
-                    SetError($"The loaded scene is invalid: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Loaded scene is invalid: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                }
            }
 #endif
@@ -113,7 +118,7 @@ namespace YooAsset
            //注意：场景加载不支持异步转同步，为了支持同步加载方法需要实现该方法！
            ExecuteOnce();
        }
-        public override void AllowSceneActivation()
+        protected override void InternalAllowSceneActivation()
        {
            _allowSceneActivation = true;
        }
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadSubAssetsOperation.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/Operations/VBHLoadSubAssetsOperation.cs
@@ -3,11 +3,11 @@ using System.Collections.Generic;
 namespace YooAsset
 {
    /// <summary>
-    /// 虚拟资源包的加载子资源操作
+    /// 通过 AssetDatabase 加载指定资源的全部子资源对象（仅编辑器模式）
    /// </summary>
-    internal class VBHLoadSubAssetsOperation : BHLoadSubAssetsOperation
+    internal sealed class VBHLoadSubAssetsOperation : BHLoadSubAssetsOperation
    {
-        protected enum ESteps
+        private enum ESteps
        {
            None,
            CheckBundle,
@@ -20,6 +20,11 @@ namespace YooAsset
        private readonly AssetInfo _assetInfo;
        private ESteps _steps = ESteps.None;

+        /// <summary>
+        /// 创建实例
+        /// </summary>
+        /// <param name="packageBundle">资源包描述</param>
+        /// <param name="assetInfo">待加载资源信息</param>
        public VBHLoadSubAssetsOperation(PackageBundle packageBundle, AssetInfo assetInfo)
        {
            _packageBundle = packageBundle;
@@ -47,8 +52,8 @@ namespace YooAsset
                if (string.IsNullOrEmpty(guid))
                {
                    _steps = ESteps.Done;
-                    SetError($"Asset not found: {_assetInfo.AssetPath}");
-                    YooLogger.Error(Error);
+                    SetError($"Asset not found: '{_assetInfo.AssetPath}'.");
+                    YooLogger.LogError(Error);
                    return;
                }

@@ -81,13 +86,13 @@ namespace YooAsset
                {
                    string error;
                    if (_assetInfo.AssetType == null)
-                        error = $"Failed to load sub-assets: {_assetInfo.AssetPath} AssetType: null";
+                        error = $"Failed to load sub-assets: '{_assetInfo.AssetPath}' AssetType: null.";
                    else
-                        error = $"Failed to load sub-assets: {_assetInfo.AssetPath} AssetType: {_assetInfo.AssetType}";
+                        error = $"Failed to load sub-assets: '{_assetInfo.AssetPath}' AssetType: {_assetInfo.AssetType}.";

                    _steps = ESteps.Done;
                    SetError(error);
-                    YooLogger.Error(error);
+                    YooLogger.LogError(error);
                }
                else
                {
--- a/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/VirtualBundleHandle.cs
+++ b/Assets/YooAsset/Runtime/BundleHandle/Services/VirtualBundleHandle/VirtualBundleHandle.cs
@@ -5,7 +5,7 @@ namespace YooAsset
    /// <summary>
    /// 虚拟资源包句柄
    /// </summary>
-    internal class VirtualBundleHandle : IBundleHandle
+    internal sealed class VirtualBundleHandle : IBundleHandle
    {
        private readonly string _bundleFilePath;
        private readonly PackageBundle _packageBundle;
@@ -18,6 +18,11 @@ namespace YooAsset
            get { return _bundleFilePath; }
        }

+        /// <summary>
+        /// 创建虚拟资源包句柄实例
+        /// </summary>
+        /// <param name="bundleFilePath">资源包文件的本地路径</param>
+        /// <param name="packageBundle">资源包描述</param>
        public VirtualBundleHandle(string bundleFilePath, PackageBundle packageBundle)
        {
            _bundleFilePath = bundleFilePath;
@@ -25,7 +30,7 @@ namespace YooAsset
        }

        /// <summary>
-        /// 虚拟资源包无需执行实际卸载操作
+        /// 释放虚拟资源包（无需执行实际卸载操作）
        /// </summary>
        public void UnloadBundle()
        {
--- a/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticBehaviour.cs
+++ b/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticBehaviour.cs
@@ -8,7 +8,7 @@ namespace YooAsset
    /// 诊断行为组件
    /// </summary>
    /// <remarks>
-    /// 负责接收 Editor 命令并发送诊断数据。
+    /// 负责接收 Editor 命令并发送诊断数据
    /// </remarks>
    internal class DiagnosticBehaviour : MonoBehaviour
    {
@@ -16,13 +16,13 @@ namespace YooAsset
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
        private static void OnRuntimeInitialize()
        {
-            _sampleOnce = false;
-            _autoSampling = false;
+            s_sampleOnce = false;
+            s_autoSampling = false;
        }
 #endif

-        private static bool _sampleOnce = false;
-        private static bool _autoSampling = false;
+        private static bool s_sampleOnce = false;
+        private static bool s_autoSampling = false;

        private void Awake()
        {
@@ -48,9 +48,9 @@ namespace YooAsset
        }
        private void LateUpdate()
        {
-            if (_autoSampling || _sampleOnce)
+            if (s_autoSampling || s_sampleOnce)
            {
-                _sampleOnce = false;
+                s_sampleOnce = false;
                var debugReport = YooAssets.GetDiagnosticReport();
                var data = DiagnosticReport.Serialize(debugReport);

@@ -65,22 +65,22 @@ namespace YooAsset
        private static void HandleEditorMessage(MessageEventArgs args)
        {
            var command = DiagnosticCommand.Deserialize(args.data);
-            YooLogger.Log($"[{nameof(DiagnosticBehaviour)}] Handle command: Type={command.CommandType}, Param={command.Parameter}");
-            if (command.CommandType == (int)EDiagnosticCommandType.SampleOnce)
+            YooLogger.Log($"[{nameof(DiagnosticBehaviour)}] Received command: Type={command.CommandType}, Param='{command.Parameter}'.");
+            if (command.CommandType == EDiagnosticCommandType.SampleOnce)
            {
-                _sampleOnce = true;
+                s_sampleOnce = true;
            }
-            else if (command.CommandType == (int)EDiagnosticCommandType.AutoSampling)
+            else if (command.CommandType == EDiagnosticCommandType.AutoSampling)
            {
-                if (command.Parameter == "open")
-                    _autoSampling = true;
+                if (command.Parameter == DiagnosticSystemConsts.AutoSamplingOpen)
+                    s_autoSampling = true;
                else
-                    _autoSampling = false;
+                    s_autoSampling = false;
            }
            else
            {
-                YooLogger.Warning($"Unknown diagnostic command type: {command.CommandType}.");
+                YooLogger.LogWarning($"Unknown diagnostic command type: {command.CommandType}.");
            }
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticCommand.cs
+++ b/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticCommand.cs
@@ -8,7 +8,7 @@ namespace YooAsset
    /// 诊断命令
    /// </summary>
    /// <remarks>
-    /// 用于 Editor 向 Player 发送诊断指令。
+    /// 用于 Editor 向 Player 发送诊断指令
    /// </remarks>
    [Serializable]
    internal class DiagnosticCommand
@@ -16,14 +16,13 @@ namespace YooAsset
        /// <summary>
        /// 命令类型
        /// </summary>
-        public int CommandType;
+        public EDiagnosticCommandType CommandType;

        /// <summary>
        /// 命令附加参数
        /// </summary>
        public string Parameter;

-
        /// <summary>
        /// 序列化命令为字节数组
        /// </summary>
@@ -44,4 +43,4 @@ namespace YooAsset
            return JsonUtility.FromJson<DiagnosticCommand>(Encoding.UTF8.GetString(data));
        }
    }
-}
+}
--- a/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticReport/DiagnosticBundleInfo.cs
+++ b/Assets/YooAsset/Runtime/DiagnosticSystem/DiagnosticReport/DiagnosticBundleInfo.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections;
 using System.Collections.Generic;

 namespace YooAsset
@@ -8,7 +7,7 @@ namespace YooAsset
    /// 描述资源包的运行时诊断信息
    /// </summary>
    [Serializable]
-    internal struct DiagnosticBundleInfo : IComparer<DiagnosticBundleInfo>, IComparable<DiagnosticBundleInfo>
+    internal class DiagnosticBundleInfo : IComparable<DiagnosticBundleInfo>
    {
        /// <summary>
        /// 资源包名称
@@ -30,13 +29,10 @@ namespace YooAsset
        /// </summary>
        public List<string> Referencers;

+        /// <inheritdoc />
        public int CompareTo(DiagnosticBundleInfo other)
        {
-            return Compare(this, other);
-        }
-        public int Compare(DiagnosticBundleInfo a, DiagnosticBundleInfo b)
-        {
-            return string.CompareOrdinal(a.BundleName, b.BundleName);
+            return string.CompareOrdinal(BundleName, other.BundleName);
        }
    }
 }
--- a/Show More
+++ b/Show More