refactor : 重构网络下载模块

新增通用下载接口，扩展了默认的Unity引擎下载器

Assets/YooAsset/CHANGELOG.md

@@ -2,7 +2,298 @@
 
 All notable changes to this package will be documented in this file.
 
-## [2.3.13] - 2025-07-23
+## [2.3.18] - 2025-12-04
+
+### Fixed
+
+- (#676) 修复了UniTask扩展包的编译报错。
+- (#684) 修复了资源配置窗口Group列表数量过多的时候，添加和删除按钮会变小的问题。
+- (#700) [**严重**] 修复了小游戏扩展库的下载器再失败后重试逻辑不起效的问题。
+
+### Added
+
+- (#683) 新增了内置文件系统类初始化参数：UNPACK_FILE_SYSTEM_ROOT
+
+  ```csharp
+  class FileSystemParametersDefine
+  {
+      // 指定解压文件的根目录
+      public const string UNPACK_FILE_SYSTEM_ROOT = "UNPACK_FILE_SYSTEM_ROOT";
+  }
+  ```
+
+- (#682) 原生文件构建管线新增构建参数：IncludePathInHash
+
+  ```csharp
+  class RawFileBuildParameters : BuildParameters
+  {
+      /// <summary>
+      /// 文件哈希值计算包含路径信息
+      /// </summary>
+      public bool IncludePathInHash = false;
+  }
+  ```
+
+- (#671) 新增扩展工具，可以生成空的包裹内置资源目录文件。
+
+  ```csharp
+  public class CreateEmptyCatalogWindow : EditorWindow
+  ```
+
+- (#694) 新增资源清理方式：ClearBundleFilesByLocations
+
+  ```csharp
+  public enum EFileClearMode
+  {
+      /// <summary>
+      /// 清理指定地址的文件
+      /// 说明：需要指定参数，可选：string, string[], List<string>
+      /// </summary>
+      ClearBundleFilesByLocations,
+  }
+  ```
+
+## [2.3.17] - 2025-10-30
+
+**非常重要**：修复了#627优化导致的资源清单CRC值为空的问题。
+
+该问题会导致下载的损坏文件验证通过。
+
+影响范围：v2.3.15版本，v2.3.16版本。
+
+**非常重要**：(#661) 修复了Package销毁过程中，遇到正在加载的AssetBundle会导致无法卸载的问题。
+
+该问题是偶现，引擎会提示AssetBundle已经加载，无法加载新的文件，导致资源对象加载失败！
+
+影响范围：所有版本！
+
+### Fixed
+
+- (#645) 修复了着色器变种收集工具，在极端情况下变种收集不完整的问题。
+- (#646) 修复了EditorSimulateMode模式下开启模拟下载tag不生效的问题。
+- (#667) 修复了所有编辑器窗口针对中文IME的输入问题。
+- (#670) 修复了Catalog文件生成过程中白名单未考虑自定义清单前缀名。
+
+### Improvements
+
+- 重构并统一了资源清单的反序列化逻辑。
+- (#650) 解决互相依赖的资源包无法卸载的问题。需要开启宏定义：YOOASSET_EXPERIMENTAL
+- (#655) 优化了初始化的时候，缓存文件搜索效率。安卓平台性能提升1倍，IOS平台性能提升3倍。
+
+### Added
+
+- (#643) 新增构建参数，可以节省资源清单运行时内存
+
+  ```csharp
+  class ScriptableBuildParameters
+  {
+      /// <summary>
+      /// 使用可寻址地址代替资源路径
+      /// 说明：开启此项可以节省运行时清单占用的内存！
+      /// </summary>
+      public bool ReplaceAssetPathWithAddress = false;
+  }
+  ```
+
+- (#648) 新增初始化参数，可以自动释放引用计数为零的资源包
+
+  ```csharp
+  class InitializeParameters
+  {
+      /// <summary>
+      /// 当资源引用计数为零的时候自动释放资源包
+      /// </summary>
+      public bool AutoUnloadBundleWhenUnused = false;
+  }
+  ```
+
+### Changed
+
+- 程序集宏定义代码转移到扩展工程。参考MacroSupport文件夹。
+
+## [2.3.16] - 2025-09-17
+
+### Improvements
+
+- (#638) 优化了Provider加载机制，引用计数为零时自动挂起！
+
+### Fixed
+
+- (#644) [**严重**] 修复了2.3.15版本，资产量巨大的情况下，编辑器下模拟模式初始化耗时很久的问题。
+
+### Added
+
+- (#639) 新增了文件系统参数：VIRTUAL_DOWNLOAD_MODE 和 VIRTUAL_DOWNLOAD_SPEED 
+
+  编辑器下不需要构建AB，也可以模拟远端资源下载，等同真机运行环境。
+
+  ```csharp
+  class DefaultEditorFIleSystem
+  {
+      /// <summary>
+      /// 模拟虚拟下载模式
+      /// </summary>
+      public bool VirtualDownloadMode { private set; get; } = false;
+  
+      /// <summary>
+      /// 模拟虚拟下载的网速（单位：字节）
+      /// </summary>
+      public int VirtualDownloadSpeed { private set; get; } = 1024;
+  }
+  ```
+
+- (#640) 新增了文件系统参数：VIRTUAL_WEBGL_MODE 
+
+  编辑器下不需要构建AB，也可以模拟小游戏开发环境，等同真机运行环境。
+
+  ```csharp
+  class DefaultEditorFIleSystem
+  {
+      /// <summary>
+      /// 模拟WebGL平台模式
+      /// </summary>
+      public bool VirtualWebGLMode { private set; get; } = false;
+  }
+  ```
+
+- (#642) 新增了文件系统参数：DOWNLOAD_WATCH_DOG_TIME
+
+  监控时间范围内，如果没有接收到任何下载数据，那么直接终止任务！
+
+  ```csharp
+  class DefaultCacheFIleSystem
+  {
+      /// <summary>
+      /// 自定义参数：下载任务的看门狗机制监控时间
+      /// </summary>
+      public int DownloadWatchDogTime { private set; get; } = int.MaxValue;
+  }
+  ```
+
+### Changed
+
+- 下载器参数timeout移除。
+
+  可以使用文件系统的看门狗机制代替。
+
+- (#632) IFilterRule接口变动。
+
+  收集器可以指定搜寻的资源类型，在收集目录资产量巨大的情况下，可以极大加快打包速度！
+
+  ```csharp
+  public interface IFilterRule
+  {
+      /// <summary>
+      /// 搜寻的资源类型
+      /// 说明：使用引擎方法搜索获取所有资源列表
+      /// </summary>
+      string FindAssetType { get; } 
+  }
+  ```
+
+  
+
+## [2.3.15] - 2025-09-09
+
+**重要**：升级了资源清单版本，不兼容老版本。建议重新提审安装包。
+
+### Improvements
+
+- 重构了UniTask扩展库的目录结构和说明文档。
+- 重构了内置文件系统类的加载和拷贝逻辑，解决在一些特殊机型上遇到的偶发性拷贝失败问题。
+- 增加了生成内置清单文件的窗口工具，详情见扩展工程里CreateBuildinCatalog目录。
+- 优化了异步操作系统的繁忙检测机制。
+- (#621) 资源配置页面可以展示DependCollector和StaticCollector包含的文件列表内容。
+- (#627) 优化了资源清单部分字段类型，CRC字段从字符串类型调整为整形，可以降低清单尺寸。
+
+### Fixed
+
+- 修复了构建页面扩展类缺少指定属性报错的问题。
+- (#611)  修复了资源扫描器配置页面，修改备注信息后会丢失焦点的问题。
+- (#622)  修复了纯鸿蒙系统读取内置加密文件失败的问题。
+- (#620)  修复了LINUX系统URL地址转换失败的问题。
+- (#631)  修复了NET 4.x程序集库Math.Clamp导致的编译错误。
+
+### Added
+
+- 新增了支持支付宝小游戏的文件系统扩展类。
+
+- 新增了支持Taptap小游戏的文件系统扩展类。
+
+- 新增了资源系统初始化参数：UseWeakReferenceHandle 
+
+  目前处于预览版，可以在引擎设置页面开启宏：YOOASSET_EXPERIMENTAL
+
+  ```csharp
+  /// <summary>
+  /// 启用弱引用资源句柄
+  /// </summary>
+  public bool UseWeakReferenceHandle = false;
+  ```
+
+- 内置文件系统和缓存文件系统新增初始化参数：FILE_VERIFY_MAX_CONCURRENCY 
+
+  ```csharp
+  /// <summary>
+  /// 自定义参数：初始化的时候缓存文件校验最大并发数
+  /// </summary>
+  public int FileVerifyMaxConcurrency { private set; get; }
+  ```
+
+- (#623)  内置构建管线新增构建参数：StripUnityVersion 
+
+  ```csharp
+  /// <summary>
+  /// 从文件头里剥离Unity版本信息
+  /// </summary>
+  public bool StripUnityVersion = false;
+  ```
+
+- 可编程构建管线新增构建参数：TrackSpriteAtlasDependencies
+
+  ```csharp
+  /// <summary>
+  /// 自动建立资源对象对图集的依赖关系
+  /// </summary>
+  public bool TrackSpriteAtlasDependencies = false;
+  ```
+
+- (#617) 新增资源收集配置参数：SupportExtensionless
+
+  在不需要模糊加载模式的前提下，关闭此选项，可以降低运行时内存大小。
+
+  该选项默认开启！
+
+  ```csharp
+  public class CollectCommand
+  {
+      /// <summary>
+      /// 支持无后缀名的资源定位地址
+      /// </summary>
+      public bool SupportExtensionless { set; get; }  
+  }
+  ```
+
+- (#625) 异步操作系统类新增监听方法。
+
+  ```csharp
+  class OperationSystem
+  {
+      /// <summary>
+      /// 监听任务开始
+      /// </summary>
+      public static void RegisterStartCallback(Action<string, AsyncOperationBase> callback);
+          
+      /// <summary>
+      /// 监听任务结束
+      /// </summary>
+      public static void RegisterFinishCallback(Action<string, AsyncOperationBase> callback);
+  }
+  ```
+
+  
+
+## [2.3.14] - 2025-07-23
 
 **重要**：**所有下载相关的超时参数（timeout）已更新判定逻辑**
 

Assets/YooAsset/Editor/AssetArtReporter/AssetArtReporterWindow.cs

@@ -261,14 +261,14 @@ namespace YooAsset.Editor
             catch (System.Exception e)
             {
                 _reportCombiner = null;
-                _titleLabel.text = "导入报告失败！";
+                _titleLabel.text = "Failed to import report!";
                 _descLabel.text = e.Message;
                 UnityEngine.Debug.LogError(e.StackTrace);
             }
         }
         private void FixAllBtn_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", "修复全部资源（排除白名单和隐藏元素）", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", "Fix all resources (excluding whitelist and hidden elements)", "Yes", "No"))
             {
                 if (_reportCombiner != null)
                     _reportCombiner.FixAll();
@@ -276,7 +276,7 @@ namespace YooAsset.Editor
         }
         private void FixSelectBtn_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", "修复勾选资源（包含白名单和隐藏元素）", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", "Fix selected resources (including whitelist and hidden elements)", "Yes", "No"))
             {
                 if (_reportCombiner != null)
                     _reportCombiner.FixSelect();
@@ -302,7 +302,7 @@ namespace YooAsset.Editor
         }
         private void ExportFilesBtn_clicked()
         {
-            string selectFolderPath = EditorUtility.OpenFolderPanel("导入所有选中资源", EditorTools.GetProjectPath(), string.Empty);
+            string selectFolderPath = EditorUtility.OpenFolderPanel("Export all selected resources", EditorTools.GetProjectPath(), string.Empty);
             if (string.IsNullOrEmpty(selectFolderPath) == false)
             {
                 if (_reportCombiner != null)

Assets/YooAsset/Editor/AssetArtScanner/AssetArtScannerSetting.cs

@@ -32,21 +32,14 @@ namespace YooAsset.Editor
 
                 // 开始扫描工作
                 ScanReport report = scanner.RunScanner();
-
-                // 检测报告合法性
                 report.CheckError();
 
-                // 保存扫描结果
-                string saveDirectory = scanner.SaveDirectory;
-                if (string.IsNullOrEmpty(saveDirectory))
-                    saveDirectory = "Assets/";
-                string filePath = $"{saveDirectory}/{scanner.ScannerName}_{scanner.ScannerDesc}.json";
-                ScanReportConfig.ExportJsonConfig(filePath, report);
-                return new ScannerResult(filePath, report);
+                // 返回扫描结果
+                return new ScannerResult(report);
             }
             catch (Exception e)
             {
-                return new ScannerResult(e.StackTrace);
+                return new ScannerResult(e.Message, e.StackTrace);
             }
         }
 

Assets/YooAsset/Editor/AssetArtScanner/AssetArtScannerWindow.cs

@@ -240,7 +240,7 @@ namespace YooAsset.Editor
         }
         private void ScanAllBtn_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", $"开始全面扫描！", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", $"Start full scan!", "Yes", "No"))
             {
                 string searchKeyWord = _scannerSearchField.value;
                 AssetArtScannerSettingData.ScanAll(searchKeyWord);
@@ -248,7 +248,7 @@ namespace YooAsset.Editor
             }
             else
             {
-                Debug.LogWarning("全面扫描已经取消");
+                Debug.LogWarning("Full scan has been canceled.");
             }
         }
         private void ScanBtn_clicked()
@@ -294,6 +294,11 @@ namespace YooAsset.Editor
                 _scannerListView.itemsSource = filterItems;
                 _scannerListView.Rebuild();
             }
+
+            if (_lastModifyScannerIndex >= 0 && _lastModifyScannerIndex < _scannerListView.itemsSource.Count)
+            {
+                _scannerListView.selectedIndex = _lastModifyScannerIndex;
+            }
         }
         private List<AssetArtScanner> FilterScanners()
         {

Assets/YooAsset/Editor/AssetArtScanner/ScannerResult.cs

@@ -3,11 +3,6 @@ namespace YooAsset.Editor
 {
     public class ScannerResult
     {
-        /// <summary>
-        /// 生成的报告文件路径
-        /// </summary>
-        public string ReprotFilePath { private set; get; }
-
         /// <summary>
         /// 报告对象
         /// </summary>
@@ -18,6 +13,11 @@ namespace YooAsset.Editor
         /// </summary>
         public string ErrorInfo { private set; get; }
 
+        /// <summary>
+        /// 错误堆栈
+        /// </summary>
+        public string ErrorStack { private set; get; }
+
         /// <summary>
         /// 是否成功
         /// </summary>
@@ -33,15 +33,14 @@ namespace YooAsset.Editor
         }
 
 
-        public ScannerResult(string error)
+        public ScannerResult(string error, string stack)
         {
             ErrorInfo = error;
+            ErrorStack = stack;
         }
-        public ScannerResult(string filePath, ScanReport report)
+        public ScannerResult(ScanReport report)
         {
-            ReprotFilePath = filePath;
             Report = report;
-            ErrorInfo = string.Empty;
         }
 
         /// <summary>
@@ -55,5 +54,19 @@ namespace YooAsset.Editor
                 reproterWindow.ImportSingleReprotFile(Report);
             }
         }
+
+        /// <summary>
+        /// 保存报告文件
+        /// </summary>
+        public void SaveReportFile(string saveDirectory)
+        {
+            if (Report == null)
+                throw new System.Exception("Scan report is invalid !");
+
+            if (string.IsNullOrEmpty(saveDirectory))
+                saveDirectory = "Assets/";
+            string filePath = $"{saveDirectory}/{Report.ReportName}_{Report.ReportDesc}.json";
+            ScanReportConfig.ExportJsonConfig(filePath, Report);
+        }
     }
 }

Assets/YooAsset/Editor/AssetBundleBuilder/AssetBundleBuilderWindow.cs

@@ -77,6 +77,12 @@ namespace YooAsset.Editor
                     foreach (var classType in viewerClassTypes)
                     {
                         var buildPipelineAttribute = EditorTools.GetAttribute<BuildPipelineAttribute>(classType);
+                        if (buildPipelineAttribute == null)
+                        {
+                            Debug.LogWarning($"The class {classType.FullName} need attribute {nameof(BuildPipelineAttribute)}");
+                            continue;
+                        }
+
                         string pipelineName = buildPipelineAttribute.PipelineName;
                         if (_viewClassDic.ContainsKey(pipelineName))
                         {

Assets/YooAsset/Editor/AssetBundleBuilder/BuildBundleInfo.cs

@@ -27,7 +27,7 @@ namespace YooAsset.Editor
         /// <summary>
         /// 文件哈希值
         /// </summary>
-        public string PackageFileCRC { set; get; }
+        public uint PackageFileCRC { set; get; }
 
         /// <summary>
         /// 文件哈希值
@@ -106,7 +106,27 @@ namespace YooAsset.Editor
         /// </summary>
         public string[] GetAllPackAssetPaths()
         {
-            return AllPackAssets.Select(t => t.AssetInfo.AssetPath).ToArray();
+            List<string> results = new List<string>(AllPackAssets.Count);
+            for (int i = 0; i < AllPackAssets.Count; i++)
+            {
+                var packAsset = AllPackAssets[i];
+                results.Add(packAsset.AssetInfo.AssetPath);
+            }
+            return results.ToArray();
+        }
+
+        /// <summary>
+        /// 获取构建的资源可寻址列表
+        /// </summary>
+        public string[] GetAllPackAssetAddress()
+        {
+            List<string> results = new List<string>(AllPackAssets.Count);
+            for (int i = 0; i < AllPackAssets.Count; i++)
+            {
+                var packAsset = AllPackAssets[i];
+                results.Add(packAsset.Address);
+            }
+            return results.ToArray();
         }
 
         /// <summary>
@@ -153,13 +173,15 @@ namespace YooAsset.Editor
         /// <summary>
         /// 创建AssetBundleBuild类
         /// </summary>
-        public UnityEditor.AssetBundleBuild CreatePipelineBuild()
+        public UnityEditor.AssetBundleBuild CreatePipelineBuild(bool replaceAssetPathWithAddress)
         {
             // 注意：我们不再支持AssetBundle的变种机制
             AssetBundleBuild build = new AssetBundleBuild();
             build.assetBundleName = BundleName;
             build.assetBundleVariant = string.Empty;
             build.assetNames = GetAllPackAssetPaths();
+            if (replaceAssetPathWithAddress)
+                build.addressableNames = GetAllPackAssetAddress();
             return build;
         }
 

Assets/YooAsset/Editor/AssetBundleBuilder/BuildMapContext.cs

@@ -13,6 +13,11 @@ namespace YooAsset.Editor
         /// </summary>
         private readonly Dictionary<string, BuildBundleInfo> _bundleInfoDic = new Dictionary<string, BuildBundleInfo>(10000);
 
+        /// <summary>
+        /// 图集资源集合
+        /// </summary>
+        public readonly List<BuildAssetInfo> SpriteAtlasAssetList = new List<BuildAssetInfo>(10000);
+
         /// <summary>
         /// 未被依赖的资源列表
         /// </summary>
@@ -60,6 +65,12 @@ namespace YooAsset.Editor
                 newBundleInfo.PackAsset(assetInfo);
                 _bundleInfoDic.Add(bundleName, newBundleInfo);
             }
+
+            // 统计所有的精灵图集
+            if (assetInfo.AssetInfo.IsSpriteAtlas())
+            {
+                SpriteAtlasAssetList.Add(assetInfo);
+            }
         }
 
         /// <summary>
@@ -85,12 +96,12 @@ namespace YooAsset.Editor
         /// <summary>
         /// 获取构建管线里需要的数据
         /// </summary>
-        public UnityEditor.AssetBundleBuild[] GetPipelineBuilds()
+        public UnityEditor.AssetBundleBuild[] GetPipelineBuilds(bool replaceAssetPathWithAddres)
         {
             List<UnityEditor.AssetBundleBuild> builds = new List<UnityEditor.AssetBundleBuild>(_bundleInfoDic.Count);
             foreach (var bundleInfo in _bundleInfoDic.Values)
             {
-                builds.Add(bundleInfo.CreatePipelineBuild());
+                builds.Add(bundleInfo.CreatePipelineBuild(replaceAssetPathWithAddres));
             }
             return builds.ToArray();
         }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateManifest.cs

@@ -2,6 +2,7 @@
 using System.Linq;
 using System.Collections;
 using System.Collections.Generic;
+using UnityEditor;
 
 namespace YooAsset.Editor
 {
@@ -18,7 +19,7 @@ namespace YooAsset.Editor
         /// <summary>
         /// 创建补丁清单文件到输出目录
         /// </summary>
-        protected void CreateManifestFile(bool processBundleDepends, bool processBundleTags, BuildContext context)
+        protected void CreateManifestFile(bool processBundleDepends, bool processBundleTags, bool replaceAssetPathWithAddress, BuildContext context)
         {
             var buildMapContext = context.GetContextObject<BuildMapContext>();
             var buildParametersContext = context.GetContextObject<BuildParametersContext>();
@@ -32,8 +33,10 @@ namespace YooAsset.Editor
             PackageManifest manifest = new PackageManifest();
             manifest.FileVersion = ManifestDefine.FileVersion;
             manifest.EnableAddressable = buildMapContext.Command.EnableAddressable;
+            manifest.SupportExtensionless = buildMapContext.Command.SupportExtensionless;
             manifest.LocationToLower = buildMapContext.Command.LocationToLower;
             manifest.IncludeAssetGUID = buildMapContext.Command.IncludeAssetGUID;
+            manifest.ReplaceAssetPathWithAddress = replaceAssetPathWithAddress;
             manifest.OutputNameStyle = (int)buildParameters.FileNameStyle;
             manifest.BuildBundleType = buildParameters.BuildBundleType;
             manifest.BuildPipeline = buildParameters.BuildPipeline;
@@ -56,7 +59,13 @@ namespace YooAsset.Editor
 
             // 4. 处理内置资源包
             if (processBundleDepends)
+            {
+                // 注意：初始化资源清单建立引用关系
+                manifest.Initialize();
+
                 ProcessBuiltinBundleDependency(context, manifest);
+            }
+
 
             // 创建资源清单文本文件
             {
@@ -303,15 +312,34 @@ namespace YooAsset.Editor
             // 注意：如果是可编程构建管线，需要补充内置资源包
             // 注意：该步骤依赖前面的操作！
             var buildResultContext = context.TryGetContextObject<TaskBuilding_SBP.BuildResultContext>();
+
             if (buildResultContext != null)
             {
-                // 注意：初始化资源清单建立引用关系
-                ManifestTools.InitManifest(manifest);
-                ProcessBuiltinBundleReference(context, manifest, buildResultContext.BuiltinShadersBundleName);
-                ProcessBuiltinBundleReference(context, manifest, buildResultContext.MonoScriptsBundleName);
+                ProcessBuiltinBundleReference(manifest, buildResultContext.BuiltinShadersBundleName);
+                ProcessBuiltinBundleReference(manifest, buildResultContext.MonoScriptsBundleName);
+
+                var buildParametersContext = context.TryGetContextObject<BuildParametersContext>();
+                var buildParameters = buildParametersContext.Parameters;
+                if (buildParameters is ScriptableBuildParameters scriptableBuildParameters)
+                {
+                    if (scriptableBuildParameters.TrackSpriteAtlasDependencies)
+                    {
+                        // 注意：检测是否开启图集模式
+                        // 说明：需要记录主资源对象对图集的依赖关系！
+                        if (EditorSettings.spritePackerMode != SpritePackerMode.Disabled)
+                        {
+                            var buildMapContext = context.GetContextObject<BuildMapContext>();
+                            foreach (var spriteAtlasAsset in buildMapContext.SpriteAtlasAssetList)
+                            {
+                                string spriteAtlasBundleName = spriteAtlasAsset.BundleName;
+                                ProcessBuiltinBundleReference(manifest, spriteAtlasBundleName);
+                            }
+                        }
+                    }
+                }
             }
         }
-        private void ProcessBuiltinBundleReference(BuildContext context, PackageManifest manifest, string builtinBundleName)
+        private void ProcessBuiltinBundleReference(PackageManifest manifest, string builtinBundleName)
         {
             if (string.IsNullOrEmpty(builtinBundleName))
                 return;

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskCreateReport.cs

@@ -32,6 +32,7 @@ namespace YooAsset.Editor
                 // 收集器配置
                 buildReport.Summary.UniqueBundleName = buildMapContext.Command.UniqueBundleName;
                 buildReport.Summary.EnableAddressable = buildMapContext.Command.EnableAddressable;
+                buildReport.Summary.SupportExtensionless = buildMapContext.Command.SupportExtensionless;
                 buildReport.Summary.LocationToLower = buildMapContext.Command.LocationToLower;
                 buildReport.Summary.IncludeAssetGUID = buildMapContext.Command.IncludeAssetGUID;
                 buildReport.Summary.AutoCollectShaders = buildMapContext.Command.AutoCollectShaders;
@@ -53,6 +54,7 @@ namespace YooAsset.Editor
                     buildReport.Summary.CompressOption = builtinBuildParameters.CompressOption;
                     buildReport.Summary.DisableWriteTypeTree = builtinBuildParameters.DisableWriteTypeTree;
                     buildReport.Summary.IgnoreTypeTreeChanges = builtinBuildParameters.IgnoreTypeTreeChanges;
+                    buildReport.Summary.ReplaceAssetPathWithAddress = builtinBuildParameters.ReplaceAssetPathWithAddress;
                 }
                 else if (buildParameters is ScriptableBuildParameters)
                 {
@@ -60,6 +62,7 @@ namespace YooAsset.Editor
                     buildReport.Summary.CompressOption = scriptableBuildParameters.CompressOption;
                     buildReport.Summary.DisableWriteTypeTree = scriptableBuildParameters.DisableWriteTypeTree;
                     buildReport.Summary.IgnoreTypeTreeChanges = scriptableBuildParameters.IgnoreTypeTreeChanges;
+                    buildReport.Summary.ReplaceAssetPathWithAddress = scriptableBuildParameters.ReplaceAssetPathWithAddress;
                     buildReport.Summary.WriteLinkXML = scriptableBuildParameters.WriteLinkXML;
                     buildReport.Summary.CacheServerHost = scriptableBuildParameters.CacheServerHost;
                     buildReport.Summary.CacheServerPort = scriptableBuildParameters.CacheServerPort;

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BaseTasks/TaskUpdateBundleInfo.cs

@@ -44,9 +44,9 @@ namespace YooAsset.Editor
             {
                 bundleInfo.PackageUnityHash = GetUnityHash(bundleInfo, context);
                 bundleInfo.PackageUnityCRC = GetUnityCRC(bundleInfo, context);
-                bundleInfo.PackageFileHash = GetBundleFileHash(bundleInfo, buildParametersContext);
-                bundleInfo.PackageFileCRC = GetBundleFileCRC(bundleInfo, buildParametersContext);
-                bundleInfo.PackageFileSize = GetBundleFileSize(bundleInfo, buildParametersContext);
+                bundleInfo.PackageFileHash = GetBundleFileHash(bundleInfo, context);
+                bundleInfo.PackageFileCRC = GetBundleFileCRC(bundleInfo, context);
+                bundleInfo.PackageFileSize = GetBundleFileSize(bundleInfo, context);
             }
 
             // 4.更新补丁包输出的文件路径
@@ -62,8 +62,8 @@ namespace YooAsset.Editor
 
         protected abstract string GetUnityHash(BuildBundleInfo bundleInfo, BuildContext context);
         protected abstract uint GetUnityCRC(BuildBundleInfo bundleInfo, BuildContext context);
-        protected abstract string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext);
-        protected abstract string GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext);
-        protected abstract long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext);
+        protected abstract string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildContext context);
+        protected abstract uint GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildContext context);
+        protected abstract long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildContext context);
     }
 }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BuiltinBuildPipeline/BuildTasks/TaskBuilding_BBP.cs

@@ -23,7 +23,8 @@ namespace YooAsset.Editor
             // 开始构建
             string pipelineOutputDirectory = buildParametersContext.GetPipelineOutputDirectory();
             BuildAssetBundleOptions buildOptions = builtinBuildParameters.GetBundleBuildOptions();
-            AssetBundleManifest unityManifest = BuildPipeline.BuildAssetBundles(pipelineOutputDirectory, buildMapContext.GetPipelineBuilds(), buildOptions, buildParametersContext.Parameters.BuildTarget);
+            var bundleBuilds = buildMapContext.GetPipelineBuilds(builtinBuildParameters.ReplaceAssetPathWithAddress);
+            AssetBundleManifest unityManifest = BuildPipeline.BuildAssetBundles(pipelineOutputDirectory, bundleBuilds, buildOptions, buildParametersContext.Parameters.BuildTarget);
             if (unityManifest == null)
             {
                 string message = BuildLogger.GetErrorMessage(ErrorCode.UnityEngineBuildFailed, "UnityEngine build failed !");

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BuiltinBuildPipeline/BuildTasks/TaskCreateManifest_BBP.cs

@@ -11,7 +11,10 @@ namespace YooAsset.Editor
 
         void IBuildTask.Run(BuildContext context)
         {
-            CreateManifestFile(true, true, context);
+            var buildParametersContext = context.GetContextObject<BuildParametersContext>();
+            var builtinBuildParameters = buildParametersContext.Parameters as BuiltinBuildParameters;
+            bool replaceAssetPathWithAddress = builtinBuildParameters.ReplaceAssetPathWithAddress;
+            CreateManifestFile(true, true, replaceAssetPathWithAddress, context);
         }
 
         protected override string[] GetBundleDepends(BuildContext context, string bundleName)

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BuiltinBuildPipeline/BuildTasks/TaskUpdateBundleInfo_BBP.cs

@@ -40,17 +40,17 @@ namespace YooAsset.Editor
                 throw new Exception(message);
             }
         }
-        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return HashUtility.FileMD5(filePath);
         }
-        protected override string GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override uint GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
-            return HashUtility.FileCRC32(filePath);
+            return HashUtility.FileCRC32Value(filePath);
         }
-        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return FileUtility.GetFileSize(filePath);

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/BuiltinBuildPipeline/BuiltinBuildParameters.cs

@@ -12,6 +12,11 @@ namespace YooAsset.Editor
         /// </summary>
         public ECompressOption CompressOption = ECompressOption.Uncompressed;
 
+        /// <summary>
+        /// 从文件头里剥离Unity版本信息
+        /// </summary>
+        public bool StripUnityVersion = false;
+
         /// <summary>
         /// 禁止写入类型树结构（可以降低包体和内存并提高加载效率）
         /// </summary>
@@ -22,6 +27,12 @@ namespace YooAsset.Editor
         /// </summary>
         public bool IgnoreTypeTreeChanges = true;
 
+        /// <summary>
+        /// 使用可寻址地址代替资源路径
+        /// 说明：开启此项可以节省运行时清单占用的内存！
+        /// </summary>
+        public bool ReplaceAssetPathWithAddress = false;
+
 
         /// <summary>
         /// 获取内置构建管线的构建选项
@@ -41,6 +52,8 @@ namespace YooAsset.Editor
 
             if (ClearBuildCacheFiles)
                 opt |= BuildAssetBundleOptions.ForceRebuildAssetBundle; //Force rebuild the asset bundles
+            if (StripUnityVersion)
+                opt |= BuildAssetBundleOptions.AssetBundleStripUnityVersion; //Removes the Unity Version number in the Archive File & Serialized File headers
             if (DisableWriteTypeTree)
                 opt |= BuildAssetBundleOptions.DisableWriteTypeTree; //Do not include type information within the asset bundle (don't write type tree).
             if (IgnoreTypeTreeChanges)

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/EditorSimulateBuildPipeline/BuildTasks/TaskCreateManifest_ESBP.cs

@@ -7,7 +7,7 @@ namespace YooAsset.Editor
     {
         void IBuildTask.Run(BuildContext context)
         {
-            CreateManifestFile(false, false, context);
+            CreateManifestFile(false, true, false, context);
         }
 
         protected override string[] GetBundleDepends(BuildContext context, string bundleName)

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/EditorSimulateBuildPipeline/BuildTasks/TaskUpdateBundleInfo_ESBP.cs

@@ -19,16 +19,16 @@ namespace YooAsset.Editor
         {
             return 0;
         }
-        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return GetFilePathTempHash(filePath);
         }
-        protected override string GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override uint GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildContext context)
         {
-            return "00000000"; //8位
+            return 0;
         }
-        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildContext context)
         {
             return GetBundleTempSize(bundleInfo);
         }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/BuildTasks/TaskCreateManifest_RFBP.cs

@@ -9,7 +9,7 @@ namespace YooAsset.Editor
     {
         void IBuildTask.Run(BuildContext context)
         {
-            CreateManifestFile(false, true, context);
+            CreateManifestFile(false, true, false, context);
         }
 
         protected override string[] GetBundleDepends(BuildContext context, string bundleName)

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/BuildTasks/TaskUpdateBundleInfo_RFBP.cs

@@ -15,27 +15,55 @@ namespace YooAsset.Editor
 
         protected override string GetUnityHash(BuildBundleInfo bundleInfo, BuildContext context)
         {
-            string filePath = bundleInfo.PackageSourceFilePath;
-            return HashUtility.FileMD5(filePath);
+            var buildParametersContext = context.GetContextObject<BuildParametersContext>();
+            var rawFileBuildParameters = buildParametersContext.Parameters as RawFileBuildParameters;
+            if (rawFileBuildParameters.IncludePathInHash)
+            {
+                string filePath = bundleInfo.PackageSourceFilePath;
+                return GetFileMD5IncludePath(filePath);
+            }
+            else
+            {
+                string filePath = bundleInfo.PackageSourceFilePath;
+                return HashUtility.FileMD5(filePath);
+            }
         }
         protected override uint GetUnityCRC(BuildBundleInfo bundleInfo, BuildContext context)
         {
             return 0;
         }
-        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildContext context)
+        {
+            var buildParametersContext = context.GetContextObject<BuildParametersContext>();
+            var rawFileBuildParameters = buildParametersContext.Parameters as RawFileBuildParameters;
+            if (rawFileBuildParameters.IncludePathInHash)
+            {
+                string filePath = bundleInfo.PackageSourceFilePath;
+                return GetFileMD5IncludePath(filePath);
+            }
+            else
+            {
+                string filePath = bundleInfo.PackageSourceFilePath;
+                return HashUtility.FileMD5(filePath);
+            }
+        }
+        protected override uint GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
-            return HashUtility.FileMD5(filePath);
+            return HashUtility.FileCRC32Value(filePath);
         }
-        protected override string GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
-        {
-            string filePath = bundleInfo.PackageSourceFilePath;
-            return HashUtility.FileCRC32(filePath);
-        }
-        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return FileUtility.GetFileSize(filePath);
         }
+
+        private string GetFileMD5IncludePath(string filePath)
+        {
+            string pathHash = HashUtility.StringMD5(filePath.ToLowerInvariant());
+            string contentHash = HashUtility.FileMD5(filePath);
+            string combined = pathHash + contentHash;
+            return HashUtility.StringMD5(combined);
+        }
     }
 }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/RawFileBuildPipeline/RawFileBuildParameters.cs

@@ -6,5 +6,9 @@ namespace YooAsset.Editor
 {
     public class RawFileBuildParameters : BuildParameters
     {
+        /// <summary>
+        /// 文件哈希值计算包含路径信息
+        /// </summary>
+        public bool IncludePathInHash = false;
     }
 }

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/ScriptableBuildPipeline/BuildTasks/TaskBuilding_SBP.cs

@@ -24,7 +24,8 @@ namespace YooAsset.Editor
             var scriptableBuildParameters = buildParametersContext.Parameters as ScriptableBuildParameters;
 
             // 构建内容
-            var buildContent = new BundleBuildContent(buildMapContext.GetPipelineBuilds());
+            var bundleBuilds = buildMapContext.GetPipelineBuilds(scriptableBuildParameters.ReplaceAssetPathWithAddress);
+            var buildContent = new BundleBuildContent(bundleBuilds);
 
             // 开始构建
             IBundleBuildResults buildResults;

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/ScriptableBuildPipeline/BuildTasks/TaskCreateManifest_SBP.cs

@@ -13,7 +13,10 @@ namespace YooAsset.Editor
 
         void IBuildTask.Run(BuildContext context)
         {
-            CreateManifestFile(true, true, context);
+            var buildParametersContext = context.GetContextObject<BuildParametersContext>();
+            var scriptableBuildParameters = buildParametersContext.Parameters as ScriptableBuildParameters;
+            bool replaceAssetPathWithAddress = scriptableBuildParameters.ReplaceAssetPathWithAddress;
+            CreateManifestFile(true, true, replaceAssetPathWithAddress, context);
         }
 
         protected override string[] GetBundleDepends(BuildContext context, string bundleName)

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/ScriptableBuildPipeline/BuildTasks/TaskUpdateBundleInfo_SBP.cs

@@ -40,17 +40,17 @@ namespace YooAsset.Editor
                 throw new Exception(message);
             }
         }
-        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override string GetBundleFileHash(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return HashUtility.FileMD5(filePath);
         }
-        protected override string GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override uint GetBundleFileCRC(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
-            return HashUtility.FileCRC32(filePath);
+            return HashUtility.FileCRC32Value(filePath);
         }
-        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildParametersContext buildParametersContext)
+        protected override long GetBundleFileSize(BuildBundleInfo bundleInfo, BuildContext context)
         {
             string filePath = bundleInfo.PackageSourceFilePath;
             return FileUtility.GetFileSize(filePath);

Assets/YooAsset/Editor/AssetBundleBuilder/BuildPipeline/ScriptableBuildPipeline/ScriptableBuildParameters.cs

@@ -15,7 +15,7 @@ namespace YooAsset.Editor
         public ECompressOption CompressOption = ECompressOption.Uncompressed;
 
         /// <summary>
-        /// 从AssetBundle文件头里剥离Unity版本信息
+        /// 从文件头里剥离Unity版本信息
         /// </summary>
         public bool StripUnityVersion = false;
 
@@ -25,10 +25,21 @@ namespace YooAsset.Editor
         public bool DisableWriteTypeTree = false;
 
         /// <summary>
-        /// 忽略类型树变化
+        /// 忽略类型树变化（无效参数）
         /// </summary>
         public bool IgnoreTypeTreeChanges = true;
 
+        /// <summary>
+        /// 使用可寻址地址代替资源路径
+        /// 说明：开启此项可以节省运行时清单占用的内存！
+        /// </summary>
+        public bool ReplaceAssetPathWithAddress = false;
+
+        /// <summary>
+        /// 自动建立资源对象对图集的依赖关系
+        /// </summary>
+        public bool TrackSpriteAtlasDependencies = false;
+
 
         /// <summary>
         /// 生成代码防裁剪配置
@@ -76,10 +87,9 @@ namespace YooAsset.Editor
                 throw new System.NotImplementedException(CompressOption.ToString());
 
             if (StripUnityVersion)
-                buildParams.ContentBuildFlags |= UnityEditor.Build.Content.ContentBuildFlags.StripUnityVersion;
-
+                buildParams.ContentBuildFlags |= UnityEditor.Build.Content.ContentBuildFlags.StripUnityVersion; // Build Flag to indicate the Unity Version should not be written to the serialized file.
             if (DisableWriteTypeTree)
-                buildParams.ContentBuildFlags |= UnityEditor.Build.Content.ContentBuildFlags.DisableWriteTypeTree;
+                buildParams.ContentBuildFlags |= UnityEditor.Build.Content.ContentBuildFlags.DisableWriteTypeTree; //Do not include type information within the built content.
 
             buildParams.UseCache = true;
             buildParams.CacheServerHost = CacheServerHost;

Assets/YooAsset/Editor/AssetBundleBuilder/BuildSystem/BuildResult.cs

@@ -21,6 +21,11 @@ namespace YooAsset.Editor
         /// </summary>
         public string ErrorInfo;
 
+        /// <summary>
+        /// 构建失败的堆栈
+        /// </summary>
+        public string ErrorStack;
+
         /// <summary>
         /// 输出的补丁包目录
         /// </summary>

Assets/YooAsset/Editor/AssetBundleBuilder/BuildSystem/BuildRunner.cs

@@ -51,6 +51,7 @@ namespace YooAsset.Editor
                     EditorTools.ClearProgressBar();
                     buildResult.FailedTask = task.GetType().Name;
                     buildResult.ErrorInfo = e.ToString();
+                    buildResult.ErrorStack = e.StackTrace;
                     buildResult.Success = false;
                     break;
                 }

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/BuiltinBuildPipeline/BuiltinBuildPipelineViewer.cs

@@ -82,14 +82,14 @@ namespace YooAsset.Editor
         }
         private void BuildButton_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", $"开始构建资源包[{PackageName}]！", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", $"Start building resource package [{PackageName}]!", "Yes", "No"))
             {
                 EditorTools.ClearUnityConsole();
                 EditorApplication.delayCall += ExecuteBuild;
             }
             else
             {
-                Debug.LogWarning("[Build] 打包已经取消");
+                Debug.LogWarning("[Build] Packaging has been canceled.");
             }
         }
 

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/EditorSimulateBuildpipeline/EditorSimulateBuildPipelineViewer.cs

@@ -42,14 +42,14 @@ namespace YooAsset.Editor
         }
         private void BuildButton_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", $"开始构建资源包[{PackageName}]！", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", $"Start building resource package [{PackageName}]!", "Yes", "No"))
             {
                 EditorTools.ClearUnityConsole();
                 EditorApplication.delayCall += ExecuteBuild;
             }
             else
             {
-                Debug.LogWarning("[Build] 打包已经取消");
+                Debug.LogWarning("[Build] Packaging has been canceled.");
             }
         }
 

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/RawfileBuildpipeline/RawfileBuildPipelineViewer.cs

@@ -77,14 +77,14 @@ namespace YooAsset.Editor
         }
         private void BuildButton_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", $"开始构建资源包[{PackageName}]！", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", $"Start building resource package [{PackageName}]!", "Yes", "No"))
             {
                 EditorTools.ClearUnityConsole();
                 EditorApplication.delayCall += ExecuteBuild;
             }
             else
             {
-                Debug.LogWarning("[Build] 打包已经取消");
+                Debug.LogWarning("[Build] Packaging has been canceled.");
             }
         }
 

Assets/YooAsset/Editor/AssetBundleBuilder/VisualViewers/ScriptableBuildPipeline/ScriptableBuildPipelineViewer.cs

@@ -82,14 +82,14 @@ namespace YooAsset.Editor
         }
         private void BuildButton_clicked()
         {
-            if (EditorUtility.DisplayDialog("提示", $"开始构建资源包[{PackageName}]！", "Yes", "No"))
+            if (EditorUtility.DisplayDialog("Info", $"Start building resource package [{PackageName}]!", "Yes", "No"))
             {
                 EditorTools.ClearUnityConsole();
                 EditorApplication.delayCall += ExecuteBuild;
             }
             else
             {
-                Debug.LogWarning("[Build] 打包已经取消");
+                Debug.LogWarning("[Build] Packaging has been canceled.");
             }
         }
 
@@ -104,7 +104,6 @@ namespace YooAsset.Editor
             var compressOption = AssetBundleBuilderSetting.GetPackageCompressOption(PackageName, PipelineName);
             var clearBuildCache = AssetBundleBuilderSetting.GetPackageClearBuildCache(PackageName, PipelineName);
             var useAssetDependencyDB = AssetBundleBuilderSetting.GetPackageUseAssetDependencyDB(PackageName, PipelineName);
-            var builtinShaderBundleName = GetBuiltinShaderBundleName();
 
             ScriptableBuildParameters buildParameters = new ScriptableBuildParameters();
             buildParameters.BuildOutputRoot = AssetBundleBuilderHelper.GetDefaultBuildOutputRoot();
@@ -122,10 +121,10 @@ namespace YooAsset.Editor
             buildParameters.CompressOption = compressOption;
             buildParameters.ClearBuildCacheFiles = clearBuildCache;
             buildParameters.UseAssetDependencyDB = useAssetDependencyDB;
-            buildParameters.BuiltinShadersBundleName = builtinShaderBundleName;
             buildParameters.EncryptionServices = CreateEncryptionServicesInstance();
             buildParameters.ManifestProcessServices = CreateManifestProcessServicesInstance();
             buildParameters.ManifestRestoreServices = CreateManifestRestoreServicesInstance();
+            buildParameters.BuiltinShadersBundleName = GetBuiltinShaderBundleName();
 
             ScriptableBuildPipeline pipeline = new ScriptableBuildPipeline();
             var buildResult = pipeline.Run(buildParameters, true);
@@ -143,6 +142,16 @@ namespace YooAsset.Editor
             var packRuleResult = DefaultPackRule.CreateShadersPackRuleResult();
             return packRuleResult.GetBundleName(PackageName, uniqueBundleName);
         }
+
+        /// <summary>
+        /// Mono脚本的资源包名称
+        /// </summary>
+        protected string GetMonoScriptsBundleName()
+        {
+            var uniqueBundleName = AssetBundleCollectorSettingData.Setting.UniqueBundleName;
+            var packRuleResult = DefaultPackRule.CreateMonosPackRuleResult();
+            return packRuleResult.GetBundleName(PackageName, uniqueBundleName);
+        }
     }
 }
 #endif

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollector.cs

@@ -139,10 +139,17 @@ namespace YooAsset.Editor
         /// </summary>
         public List<CollectAssetInfo> GetAllCollectAssets(CollectCommand command, AssetBundleCollectorGroup group)
         {
-            // 注意：模拟构建模式下只收集主资源
-            if (command.SimulateBuild)
+            bool ignoreStaticCollector = command.IsFlagSet(ECollectFlags.IgnoreStaticCollector);
+            if (ignoreStaticCollector)
             {
-                if (CollectorType != ECollectorType.MainAssetCollector)
+                if (CollectorType == ECollectorType.StaticAssetCollector)
+                    return new List<CollectAssetInfo>();
+            }
+
+            bool ignoreDependCollector = command.IsFlagSet(ECollectFlags.IgnoreDependCollector);
+            if (ignoreDependCollector)
+            {
+                if (CollectorType == ECollectorType.DependAssetCollector)
                     return new List<CollectAssetInfo>();
             }
 
@@ -152,8 +159,10 @@ namespace YooAsset.Editor
             List<string> findAssets = new List<string>();
             if (AssetDatabase.IsValidFolder(CollectPath))
             {
-                string collectDirectory = CollectPath;
-                string[] findResult = EditorTools.FindAssets(EAssetSearchType.All, collectDirectory);
+                IFilterRule filterRuleInstance = AssetBundleCollectorSettingData.GetFilterRuleInstance(FilterRuleName);
+                string findAssetType = filterRuleInstance.FindAssetType;
+                string searchFolder = CollectPath;
+                string[] findResult = EditorTools.FindAssets(findAssetType, searchFolder);
                 findAssets.AddRange(findResult);
             }
             else
@@ -269,8 +278,8 @@ namespace YooAsset.Editor
         }
         private List<AssetInfo> GetAllDependencies(CollectCommand command, string mainAssetPath)
         {
-            // 注意：模拟构建模式下不需要收集依赖资源
-            if (command.SimulateBuild)
+            bool ignoreGetDependencies = command.IsFlagSet(ECollectFlags.IgnoreGetDependencies);
+            if (ignoreGetDependencies)
                 return new List<AssetInfo>();
 
             string[] depends = command.AssetDependency.GetDependencies(mainAssetPath, true);

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollectorConfig.cs

@@ -10,7 +10,7 @@ namespace YooAsset.Editor
 {
     public class AssetBundleCollectorConfig
     {
-        public const string ConfigVersion = "v2.1";
+        public const string ConfigVersion = "v2025.8.28";
 
         public const string XmlVersion = "Version";
         public const string XmlCommon = "Common";
@@ -23,6 +23,7 @@ namespace YooAsset.Editor
         public const string XmlPackageName = "PackageName";
         public const string XmlPackageDesc = "PackageDesc";
         public const string XmlEnableAddressable = "AutoAddressable";
+        public const string XmlSupportExtensionless = "SupportExtensionless";
         public const string XmlLocationToLower = "LocationToLower";
         public const string XmlIncludeAssetGUID = "IncludeAssetGUID";
         public const string XmlIgnoreRuleName = "IgnoreRuleName";
@@ -99,6 +100,7 @@ namespace YooAsset.Editor
                 package.PackageName = packageElement.GetAttribute(XmlPackageName);
                 package.PackageDesc = packageElement.GetAttribute(XmlPackageDesc);
                 package.EnableAddressable = packageElement.GetAttribute(XmlEnableAddressable) == "True" ? true : false;
+                package.SupportExtensionless = packageElement.GetAttribute(XmlSupportExtensionless) == "True" ? true : false;
                 package.LocationToLower = packageElement.GetAttribute(XmlLocationToLower) == "True" ? true : false;
                 package.IncludeAssetGUID = packageElement.GetAttribute(XmlIncludeAssetGUID) == "True" ? true : false;
                 package.IgnoreRuleName = packageElement.GetAttribute(XmlIgnoreRuleName);
@@ -211,6 +213,7 @@ namespace YooAsset.Editor
                 packageElement.SetAttribute(XmlPackageName, package.PackageName);
                 packageElement.SetAttribute(XmlPackageDesc, package.PackageDesc);
                 packageElement.SetAttribute(XmlEnableAddressable, package.EnableAddressable.ToString());
+                packageElement.SetAttribute(XmlSupportExtensionless, package.SupportExtensionless.ToString());
                 packageElement.SetAttribute(XmlLocationToLower, package.LocationToLower.ToString());
                 packageElement.SetAttribute(XmlIncludeAssetGUID, package.IncludeAssetGUID.ToString());
                 packageElement.SetAttribute(XmlIgnoreRuleName, package.IgnoreRuleName);
@@ -275,6 +278,23 @@ namespace YooAsset.Editor
                 return UpdateXmlConfig(xmlDoc);
             }
 
+            // v2.1 -> v2025.8.28
+            if (configVersion == "v2.1")
+            {
+                // 读取包裹配置
+                var packageNodeList = root.GetElementsByTagName(XmlPackage);
+                foreach (var packageNode in packageNodeList)
+                {
+                    XmlElement packageElement = packageNode as XmlElement;
+                    if (packageElement.HasAttribute(XmlSupportExtensionless) == false)
+                        packageElement.SetAttribute(XmlSupportExtensionless, "True");
+                }
+
+                // 更新版本
+                root.SetAttribute(XmlVersion, "v2025.8.28");
+                return UpdateXmlConfig(xmlDoc);
+            }
+
             return false;
         }
     }

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollectorPackage.cs

@@ -25,6 +25,11 @@ namespace YooAsset.Editor
         /// </summary>
         public bool EnableAddressable = false;
 
+        /// <summary>
+        /// 支持无后缀名的资源定位地址
+        /// </summary>
+        public bool SupportExtensionless = true;
+
         /// <summary>
         /// 资源定位地址大小写不敏感
         /// </summary>

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollectorSetting.cs

@@ -111,6 +111,7 @@ namespace YooAsset.Editor
             command.UniqueBundleName = UniqueBundleName;
             command.UseAssetDependencyDB = useAssetDependencyDB;
             command.EnableAddressable = package.EnableAddressable;
+            command.SupportExtensionless = package.SupportExtensionless;
             command.LocationToLower = package.LocationToLower;
             command.IncludeAssetGUID = package.IncludeAssetGUID;
             command.AutoCollectShaders = package.AutoCollectShaders;

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollectorWindow.cs

@@ -38,6 +38,7 @@ namespace YooAsset.Editor
 
         private VisualElement _setting2Container;
         private Toggle _enableAddressableToogle;
+        private Toggle _supportExtensionlessToogle;
         private Toggle _locationToLowerToogle;
         private Toggle _includeAssetGUIDToogle;
         private Toggle _autoCollectShadersToogle;
@@ -131,6 +132,17 @@ namespace YooAsset.Editor
                         RefreshWindow();
                     }
                 });
+                _supportExtensionlessToogle = root.Q<Toggle>("SupportExtensionless");
+                _supportExtensionlessToogle.RegisterValueChangedCallback(evt =>
+                {
+                    var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
+                    if (selectPackage != null)
+                    {
+                        selectPackage.SupportExtensionless = evt.newValue;
+                        AssetBundleCollectorSettingData.ModifyPackage(selectPackage);
+                        RefreshWindow();
+                    }
+                });
                 _locationToLowerToogle = root.Q<Toggle>("LocationToLower");
                 _locationToLowerToogle.RegisterValueChangedCallback(evt =>
                 {
@@ -224,6 +236,7 @@ namespace YooAsset.Editor
 
                 // 包裹名称
                 _packageNameTxt = root.Q<TextField>("PackageName");
+                _packageNameTxt.isDelayed = true;
                 _packageNameTxt.RegisterValueChangedCallback(evt =>
                 {
                     var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
@@ -237,6 +250,7 @@ namespace YooAsset.Editor
 
                 // 包裹备注
                 _packageDescTxt = root.Q<TextField>("PackageDesc");
+                _packageDescTxt.isDelayed = true;
                 _packageDescTxt.RegisterValueChangedCallback(evt =>
                 {
                     var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
@@ -274,6 +288,7 @@ namespace YooAsset.Editor
 
                 // 分组名称
                 _groupNameTxt = root.Q<TextField>("GroupName");
+                _groupNameTxt.isDelayed = true;
                 _groupNameTxt.RegisterValueChangedCallback(evt =>
                 {
                     var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
@@ -288,6 +303,7 @@ namespace YooAsset.Editor
 
                 // 分组备注
                 _groupDescTxt = root.Q<TextField>("GroupDesc");
+                _groupDescTxt.isDelayed = true;
                 _groupDescTxt.RegisterValueChangedCallback(evt =>
                 {
                     var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
@@ -302,6 +318,7 @@ namespace YooAsset.Editor
 
                 // 分组的资源标签
                 _groupTagsTxt = root.Q<TextField>("GroupTags");
+                _groupTagsTxt.isDelayed = true;
                 _groupTagsTxt.RegisterValueChangedCallback(evt =>
                 {
                     var selectPackage = _packageListView.selectedItem as AssetBundleCollectorPackage;
@@ -487,6 +504,7 @@ namespace YooAsset.Editor
                 _packageSettingsButton.SetEnabled(true);
                 _packageSettingsButton.text = $"{packageSettingName} ({selectPackage.PackageName})";
                 _enableAddressableToogle.SetValueWithoutNotify(selectPackage.EnableAddressable);
+                _supportExtensionlessToogle.SetValueWithoutNotify(selectPackage.SupportExtensionless);
                 _locationToLowerToogle.SetValueWithoutNotify(selectPackage.LocationToLower);
                 _includeAssetGUIDToogle.SetValueWithoutNotify(selectPackage.IncludeAssetGUID);
                 _autoCollectShadersToogle.SetValueWithoutNotify(selectPackage.AutoCollectShaders);
@@ -804,6 +822,7 @@ namespace YooAsset.Editor
                 var textField = new TextField();
                 textField.name = "TextField0";
                 textField.label = "User Data";
+                textField.isDelayed = true;
                 textField.style.width = 200;
                 elementBottom.Add(textField);
                 var label = textField.Q<Label>();
@@ -813,6 +832,7 @@ namespace YooAsset.Editor
                 var textField = new TextField();
                 textField.name = "TextField1";
                 textField.label = "Asset Tags";
+                textField.isDelayed = true;
                 textField.style.width = 100;
                 textField.style.marginLeft = 20;
                 textField.style.flexGrow = 1;
@@ -831,7 +851,7 @@ namespace YooAsset.Editor
                 var foldout = new Foldout();
                 foldout.name = "Foldout1";
                 foldout.value = false;
-                foldout.text = "Main Assets";
+                foldout.text = "Assets";
                 elementFoldout.Add(foldout);
             }
 
@@ -864,11 +884,9 @@ namespace YooAsset.Editor
             var foldout = element.Q<Foldout>("Foldout1");
             foldout.RegisterValueChangedCallback(evt =>
             {
-                if (evt.newValue)
-                    RefreshFoldout(foldout, selectGroup, collector);
-                else
-                    foldout.Clear();
+                RefreshFoldoutContent(foldout, selectGroup, collector);
             });
+            RefreshFoldoutName(foldout, collector.CollectorType);
 
             // Remove Button
             var removeBtn = element.Q<Button>("Button1");
@@ -885,10 +903,7 @@ namespace YooAsset.Editor
                 collector.CollectPath = AssetDatabase.GetAssetPath(evt.newValue);
                 collector.CollectorGUID = AssetDatabase.AssetPathToGUID(collector.CollectPath);
                 AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
-                if (foldout.value)
-                {
-                    RefreshFoldout(foldout, selectGroup, collector);
-                }
+                RefreshFoldoutContent(foldout, selectGroup, collector);
             });
             UIElementsTools.RefreshObjectFieldShowPath(objectField1);
 
@@ -899,10 +914,7 @@ namespace YooAsset.Editor
             {
                 collector.CollectorType = EditorTools.NameToEnum<ECollectorType>(evt.newValue);
                 AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
-                if (foldout.value)
-                {
-                    RefreshFoldout(foldout, selectGroup, collector);
-                }
+                RefreshFoldoutContent(foldout, selectGroup, collector);
 
                 if (collector.CollectorType == ECollectorType.MainAssetCollector)
                     textTags.SetEnabled(true);
@@ -921,10 +933,7 @@ namespace YooAsset.Editor
                 {
                     collector.AddressRuleName = evt.newValue.ClassName;
                     AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
-                    if (foldout.value)
-                    {
-                        RefreshFoldout(foldout, selectGroup, collector);
-                    }
+                    RefreshFoldoutContent(foldout, selectGroup, collector);
                 });
             }
 
@@ -937,10 +946,7 @@ namespace YooAsset.Editor
             {
                 collector.PackRuleName = evt.newValue.ClassName;
                 AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
-                if (foldout.value)
-                {
-                    RefreshFoldout(foldout, selectGroup, collector);
-                }
+                RefreshFoldoutContent(foldout, selectGroup, collector);
             });
 
             // Filter Rule
@@ -952,10 +958,7 @@ namespace YooAsset.Editor
             {
                 collector.FilterRuleName = evt.newValue.ClassName;
                 AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
-                if (foldout.value)
-                {
-                    RefreshFoldout(foldout, selectGroup, collector);
-                }
+                RefreshFoldoutContent(foldout, selectGroup, collector);
             });
 
             // UserData
@@ -976,61 +979,101 @@ namespace YooAsset.Editor
                 AssetBundleCollectorSettingData.ModifyCollector(selectGroup, collector);
             });
         }
-        private void RefreshFoldout(Foldout foldout, AssetBundleCollectorGroup group, AssetBundleCollector collector)
+        private void RefreshFoldoutName(Foldout foldout, ECollectorType collectorType, int elementNumber = -1)
         {
+            if (collectorType == ECollectorType.MainAssetCollector)
+            {
+                if (elementNumber >= 0)
+                    foldout.text = $"Main Assets ({elementNumber})";
+                else
+                    foldout.text = $"Main Assets";
+            }
+            else if (collectorType == ECollectorType.StaticAssetCollector)
+            {
+                if (elementNumber >= 0)
+                    foldout.text = $"Static Assets ({elementNumber})";
+                else
+                    foldout.text = $"Static Assets";
+            }
+            else if (collectorType == ECollectorType.DependAssetCollector)
+            {
+                if (elementNumber >= 0)
+                    foldout.text = $"Depend Assets ({elementNumber})";
+                else
+                    foldout.text = $"Depend Assets";
+            }
+            else
+            {
+                throw new System.NotImplementedException(collectorType.ToString());
+            }
+        }
+        private void RefreshFoldoutContent(Foldout foldout, AssetBundleCollectorGroup group, AssetBundleCollector collector)
+        {
+            RefreshFoldoutName(foldout, collector.CollectorType);
+
+            // 折叠栏不可见
+            if (foldout.value == false)
+            {
+                foldout.Clear();
+                return;
+            }
+
             // 清空旧元素
             foldout.Clear();
 
+            // 检测配置是否有效
             if (collector.IsValid() == false)
             {
                 collector.CheckConfigError();
                 return;
             }
 
-            if (collector.CollectorType == ECollectorType.MainAssetCollector || collector.CollectorType == ECollectorType.StaticAssetCollector)
+            List<CollectAssetInfo> collectAssetInfos = null;
+
+            try
             {
-                List<CollectAssetInfo> collectAssetInfos = null;
+                IIgnoreRule ignoreRule = AssetBundleCollectorSettingData.GetIgnoreRuleInstance(_ignoreRulePopupField.value.ClassName);
+                string packageName = _packageNameTxt.value;
+                var command = new CollectCommand(packageName, ignoreRule);
+                command.SetFlag(ECollectFlags.IgnoreGetDependencies, true);
+                command.UniqueBundleName = _uniqueBundleNameToogle.value;
+                command.EnableAddressable = _enableAddressableToogle.value;
+                command.SupportExtensionless = _supportExtensionlessToogle.value;
+                command.LocationToLower = _locationToLowerToogle.value;
+                command.IncludeAssetGUID = _includeAssetGUIDToogle.value;
+                command.AutoCollectShaders = _autoCollectShadersToogle.value;
 
-                try
+                collector.CheckConfigError();
+                collectAssetInfos = collector.GetAllCollectAssets(command, group);
+            }
+            catch (System.Exception e)
+            {
+                Debug.LogError(e.ToString());
+            }
+
+            if (collectAssetInfos != null)
+            {
+                bool showAdress = false;
+                if (_enableAddressableToogle.value && collector.CollectorType == ECollectorType.MainAssetCollector)
+                    showAdress = true;
+
+                RefreshFoldoutName(foldout, collector.CollectorType, collectAssetInfos.Count);
+                foreach (var collectAsset in collectAssetInfos)
                 {
-                    IIgnoreRule ignoreRule = AssetBundleCollectorSettingData.GetIgnoreRuleInstance(_ignoreRulePopupField.value.ClassName);
-                    string packageName = _packageNameTxt.value;
-                    var command = new CollectCommand(packageName, ignoreRule);
-                    command.SimulateBuild = true;
-                    command.UniqueBundleName = _uniqueBundleNameToogle.value;
-                    command.UseAssetDependencyDB = true;
-                    command.EnableAddressable = _enableAddressableToogle.value;
-                    command.LocationToLower = _locationToLowerToogle.value;
-                    command.IncludeAssetGUID = _includeAssetGUIDToogle.value;
-                    command.AutoCollectShaders = _autoCollectShadersToogle.value;
+                    VisualElement elementRow = new VisualElement();
+                    elementRow.style.flexDirection = FlexDirection.Row;
+                    foldout.Add(elementRow);
 
-                    collector.CheckConfigError();
-                    collectAssetInfos = collector.GetAllCollectAssets(command, group);
-                }
-                catch (System.Exception e)
-                {
-                    Debug.LogError(e.ToString());
-                }
+                    string showInfo = collectAsset.AssetInfo.AssetPath;
+                    if (showAdress)
+                        showInfo = $"[{collectAsset.Address}] {collectAsset.AssetInfo.AssetPath}";
 
-                if (collectAssetInfos != null)
-                {
-                    foreach (var collectAsset in collectAssetInfos)
-                    {
-                        VisualElement elementRow = new VisualElement();
-                        elementRow.style.flexDirection = FlexDirection.Row;
-                        foldout.Add(elementRow);
-
-                        string showInfo = collectAsset.AssetInfo.AssetPath;
-                        if (_enableAddressableToogle.value)
-                            showInfo = $"[{collectAsset.Address}] {collectAsset.AssetInfo.AssetPath}";
-
-                        var label = new Label();
-                        label.text = showInfo;
-                        label.style.width = 300;
-                        label.style.marginLeft = 0;
-                        label.style.flexGrow = 1;
-                        elementRow.Add(label);
-                    }
+                    var label = new Label();
+                    label.text = showInfo;
+                    label.style.width = 300;
+                    label.style.marginLeft = 0;
+                    label.style.flexGrow = 1;
+                    elementRow.Add(label);
                 }
             }
         }

Assets/YooAsset/Editor/AssetBundleCollector/AssetBundleCollectorWindow.uxml

@@ -19,6 +19,7 @@
             <ui:Button text="Package Settings" display-tooltip-when-elided="true" name="PackageSettingsButton" />
             <ui:VisualElement name="PublicContainer2">
                 <ui:Toggle label="Enable Addressable" name="EnableAddressable" style="width: 196px; -unity-text-align: middle-left;" />
+                <ui:Toggle label="Support Extensionless" name="SupportExtensionless" style="width: 196px; -unity-text-align: middle-left;" />
                 <ui:Toggle label="Location To Lower" name="LocationToLower" style="width: 196px; -unity-text-align: middle-left;" />
                 <ui:Toggle label="Include Asset GUID" name="IncludeAssetGUID" style="width: 196px; -unity-text-align: middle-left;" />
                 <ui:Toggle label="Auto Collect Shaders" name="AutoCollectShaders" value="true" style="width: 196px; -unity-text-align: middle-left;" />
@@ -29,7 +30,7 @@
         <ui:VisualElement name="PackageContainer" style="width: 200px; flex-grow: 0; background-color: rgb(67, 67, 67); border-left-width: 5px; border-right-width: 5px; border-top-width: 5px; border-bottom-width: 5px;">
             <ui:Label text="Packages" display-tooltip-when-elided="true" name="PackageTitle" style="background-color: rgb(89, 89, 89); -unity-text-align: upper-center; -unity-font-style: bold; border-left-width: 5px; border-right-width: 5px; border-top-width: 5px; border-bottom-width: 5px; font-size: 12px;" />
             <ui:ListView focusable="true" name="PackageListView" item-height="20" virtualization-method="DynamicHeight" reorderable="true" reorder-mode="Animated" style="flex-grow: 1;" />
-            <ui:VisualElement name="PackageAddContainer" style="height: 20px; flex-direction: row; justify-content: center;">
+            <ui:VisualElement name="PackageAddContainer" style="height: 20px; flex-direction: row; justify-content: center; flex-shrink: 0;">
                 <ui:Button text=" - " display-tooltip-when-elided="true" name="RemoveBtn" />
                 <ui:Button text=" + " display-tooltip-when-elided="true" name="AddBtn" />
             </ui:VisualElement>
@@ -39,7 +40,7 @@
             <ui:TextField picking-mode="Ignore" label="Package Name" name="PackageName" style="flex-direction: column;" />
             <ui:TextField picking-mode="Ignore" label="Package Desc" name="PackageDesc" style="flex-direction: column;" />
             <ui:ListView focusable="true" name="GroupListView" item-height="20" virtualization-method="DynamicHeight" reorderable="true" reorder-mode="Animated" style="flex-grow: 1;" />
-            <ui:VisualElement name="GroupAddContainer" style="height: 20px; flex-direction: row; justify-content: center;">
+            <ui:VisualElement name="GroupAddContainer" style="height: 20px; flex-direction: row; justify-content: center; flex-shrink: 0;">
                 <ui:Button text=" - " display-tooltip-when-elided="true" name="RemoveBtn" />
                 <ui:Button text=" + " display-tooltip-when-elided="true" name="AddBtn" />
             </ui:VisualElement>

Assets/YooAsset/Editor/AssetBundleCollector/AssetDependencyDatabase.cs

@@ -88,8 +88,8 @@ namespace YooAsset.Editor
             }
             catch (Exception ex)
             {
-                ClearDatabase(true);
                 Debug.LogError($"Failed to load cache database : {ex.Message}");
+                ClearDatabase(true);
             }
             finally
             {
@@ -169,7 +169,8 @@ namespace YooAsset.Editor
                     File.Delete(_databaseFilePath);
             }
 
-            _database.Clear();
+            if (_database != null)
+                _database.Clear();
         }
 
         /// <summary>

Assets/YooAsset/Editor/AssetBundleCollector/CollectCommand.cs

@@ -1,6 +1,26 @@
 
 namespace YooAsset.Editor
 {
+    public enum ECollectFlags
+    {
+        None = 0,
+
+        /// <summary>
+        /// 不收集依赖资源
+        /// </summary>
+        IgnoreGetDependencies = 1 << 0,
+
+        /// <summary>
+        /// 忽略静态收集器
+        /// </summary>
+        IgnoreStaticCollector = 1 << 1,
+
+        /// <summary>
+        /// 忽略依赖收集器
+        /// </summary>
+        IgnoreDependCollector = 1 << 2,
+    }
+
     public class CollectCommand
     {
         /// <summary>
@@ -17,7 +37,20 @@ namespace YooAsset.Editor
         /// <summary>
         /// 模拟构建模式
         /// </summary>
-        public bool SimulateBuild { set; get; }
+        public bool SimulateBuild
+        {
+            set
+            {
+                SetFlag(ECollectFlags.IgnoreGetDependencies, value);
+                SetFlag(ECollectFlags.IgnoreStaticCollector, value);
+                SetFlag(ECollectFlags.IgnoreDependCollector, value);
+            }
+        }
+
+        /// <summary>
+        /// 窗口收集模式
+        /// </summary>
+        public int CollectFlags { set; get; } = 0;
 
         /// <summary>
         /// 资源包名唯一化
@@ -34,6 +67,11 @@ namespace YooAsset.Editor
         /// </summary>
         public bool EnableAddressable { set; get; }
 
+        /// <summary>
+        /// 支持无后缀名的资源定位地址
+        /// </summary>
+        public bool SupportExtensionless { set; get; }
+
         /// <summary>
         /// 资源定位地址大小写不敏感
         /// </summary>
@@ -65,5 +103,24 @@ namespace YooAsset.Editor
             PackageName = packageName;
             IgnoreRule = ignoreRule;
         }
+
+        /// <summary>
+        /// 设置标记位
+        /// </summary>
+        public void SetFlag(ECollectFlags flag, bool isOn)
+        {
+            if (isOn)
+                CollectFlags |= (int)flag;  // 开启指定标志位
+            else
+                CollectFlags &= ~(int)flag; // 关闭指定标志位
+        }
+
+        /// <summary>
+        /// 查询标记位
+        /// </summary>
+        public bool IsFlagSet(ECollectFlags flag)
+        {
+            return (CollectFlags & (int)flag) != 0;
+        }
     }
 }

Assets/YooAsset/Editor/AssetBundleCollector/CollectRules/IFilterRule.cs

@@ -23,7 +23,13 @@ namespace YooAsset.Editor
     public interface IFilterRule
     {
         /// <summary>
-        /// 是否为收集资源
+        /// 搜寻的资源类型
+        /// 说明：使用引擎方法搜索获取所有资源列表
+        /// </summary>
+        string FindAssetType { get; }
+
+        /// <summary>
+        /// 验证搜寻的资源是否为收集资源
         /// </summary>
         /// <returns>如果收集该资源返回TRUE</returns>
         bool IsCollectAsset(FilterRuleData data);

Assets/YooAsset/Editor/AssetBundleCollector/DefaultRules/DefaultFilterRule.cs

@@ -9,6 +9,11 @@ namespace YooAsset.Editor
     [DisplayName("收集所有资源")]
     public class CollectAll : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.All.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             return true;
@@ -18,6 +23,11 @@ namespace YooAsset.Editor
     [DisplayName("收集场景")]
     public class CollectScene : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.Scene.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             string extension = Path.GetExtension(data.AssetPath);
@@ -28,6 +38,11 @@ namespace YooAsset.Editor
     [DisplayName("收集预制体")]
     public class CollectPrefab : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.Prefab.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             return Path.GetExtension(data.AssetPath) == ".prefab";
@@ -37,6 +52,11 @@ namespace YooAsset.Editor
     [DisplayName("收集精灵类型的纹理")]
     public class CollectSprite : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.Sprite.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             var mainAssetType = AssetDatabase.GetMainAssetTypeAtPath(data.AssetPath);
@@ -58,6 +78,11 @@ namespace YooAsset.Editor
     [DisplayName("收集着色器")]
     public class CollectShader : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.Shader.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             return Path.GetExtension(data.AssetPath) == ".shader";
@@ -67,6 +92,11 @@ namespace YooAsset.Editor
     [DisplayName("收集着色器变种集合")]
     public class CollectShaderVariants : IFilterRule
     {
+        public string FindAssetType
+        {
+            get { return EAssetSearchType.All.ToString(); }
+        }
+
         public bool IsCollectAsset(FilterRuleData data)
         {
             return Path.GetExtension(data.AssetPath) == ".shadervariants";

Assets/YooAsset/Editor/AssetBundleCollector/DefaultRules/DefaultPackRule.cs

@@ -17,16 +17,25 @@ namespace YooAsset.Editor
         public const string RawFileExtension = "rawfile";
 
         /// <summary>
-        /// Unity着色器资源包名称
+        /// 默认的Unity着色器资源包名称
         /// </summary>
         public const string ShadersBundleName = "unityshaders";
 
+        /// <summary>
+        /// 默认的Unity脚本资源包名称
+        /// </summary>
+        public const string MonosBundleName = "unitymonos";
 
         public static PackRuleResult CreateShadersPackRuleResult()
         {
             PackRuleResult result = new PackRuleResult(ShadersBundleName, AssetBundleFileExtension);
             return result;
         }
+        public static PackRuleResult CreateMonosPackRuleResult()
+        {
+            PackRuleResult result = new PackRuleResult(MonosBundleName, AssetBundleFileExtension);
+            return result;
+        }
     }
 
     /// <summary>

Assets/YooAsset/Editor/AssetBundleReporter/ReportBundleInfo.cs

@@ -26,7 +26,7 @@ namespace YooAsset.Editor
         /// <summary>
         /// 文件校验码
         /// </summary>
-        public string FileCRC;
+        public uint FileCRC;
 
         /// <summary>
         /// 文件大小（字节数）

Assets/YooAsset/Editor/AssetBundleReporter/ReportSummary.cs

@@ -61,6 +61,7 @@ namespace YooAsset.Editor
         // 收集器配置
         public bool UniqueBundleName;
         public bool EnableAddressable;
+        public bool SupportExtensionless;
         public bool LocationToLower;
         public bool IncludeAssetGUID;
         public bool AutoCollectShaders;
@@ -80,6 +81,7 @@ namespace YooAsset.Editor
         public ECompressOption CompressOption;
         public bool DisableWriteTypeTree;
         public bool IgnoreTypeTreeChanges;
+        public bool ReplaceAssetPathWithAddress;
         public bool WriteLinkXML = true;
         public string CacheServerHost;
         public int CacheServerPort;

Assets/YooAsset/Editor/AssetBundleReporter/VisualViewers/ReporterSummaryViewer.cs

@@ -55,6 +55,7 @@ namespace YooAsset.Editor
             BindListViewHeader("Collect Settings");
             BindListViewItem("Unique Bundle Name", $"{buildReport.Summary.UniqueBundleName}");
             BindListViewItem("Enable Addressable", $"{buildReport.Summary.EnableAddressable}");
+            BindListViewItem("Support Extensionless", $"{buildReport.Summary.SupportExtensionless}");
             BindListViewItem("Location To Lower", $"{buildReport.Summary.LocationToLower}");
             BindListViewItem("Include Asset GUID", $"{buildReport.Summary.IncludeAssetGUID}");
             BindListViewItem("Auto Collect Shaders", $"{buildReport.Summary.AutoCollectShaders}");
@@ -73,6 +74,7 @@ namespace YooAsset.Editor
             BindListViewItem("CompressOption", $"{buildReport.Summary.CompressOption}");
             BindListViewItem("DisableWriteTypeTree", $"{buildReport.Summary.DisableWriteTypeTree}");
             BindListViewItem("IgnoreTypeTreeChanges", $"{buildReport.Summary.IgnoreTypeTreeChanges}");
+            BindListViewItem("ReplaceAssetPathWithAddress", $"{buildReport.Summary.ReplaceAssetPathWithAddress}");
             BindListViewItem(string.Empty, string.Empty);
 
             BindListViewHeader("Build Results");

Assets/YooAsset/Editor/Common/AssetInfo.cs

@@ -62,6 +62,17 @@ namespace YooAsset.Editor
                 return false;
         }
 
+        /// <summary>
+        /// 是否为图集资源
+        /// </summary>
+        public bool IsSpriteAtlas()
+        {
+            if (AssetType == typeof(UnityEngine.U2D.SpriteAtlas))
+                return true;
+            else
+                return false;
+        }
+
         public int CompareTo(AssetInfo other)
         {
             return this.AssetPath.CompareTo(other.AssetPath);

Assets/YooAsset/Editor/EditorDefine.cs

@@ -39,7 +39,10 @@ namespace YooAsset.Editor
         Shader,
         Sprite,
         Texture,
+        RenderTexture,
         VideoClip,
+        PlayableAsset,
+        TimelineAsset
     }
 
     /// <summary>

Assets/YooAsset/Editor/EditorTools.cs

@@ -169,6 +169,28 @@ namespace YooAsset.Editor
         /// <param name="searchInFolders">指定搜索的文件夹列表</param>
         /// <returns>返回搜集到的资源路径列表</returns>
         public static string[] FindAssets(EAssetSearchType searchType, string[] searchInFolders)
+        {
+            return FindAssets(searchType.ToString(), searchInFolders);
+        }
+
+        /// <summary>
+        /// 搜集资源
+        /// </summary>
+        /// <param name="searchType">搜集的资源类型</param>
+        /// <param name="searchInFolder">指定搜索的文件夹</param>
+        /// <returns>返回搜集到的资源路径列表</returns>
+        public static string[] FindAssets(EAssetSearchType searchType, string searchInFolder)
+        {
+            return FindAssets(searchType.ToString(), new string[] { searchInFolder });
+        }
+
+        /// <summary>
+        /// 搜集资源
+        /// </summary>
+        /// <param name="searchType">搜集的资源类型</param>
+        /// <param name="searchInFolders">指定搜索的文件夹列表</param>
+        /// <returns>返回搜集到的资源路径列表</returns>
+        public static string[] FindAssets(string searchType, string[] searchInFolders)
         {
             // 注意：AssetDatabase.FindAssets()不支持末尾带分隔符的文件夹路径
             for (int i = 0; i < searchInFolders.Length; i++)
@@ -179,7 +201,7 @@ namespace YooAsset.Editor
 
             // 注意：获取指定目录下的所有资源对象（包括子文件夹）
             string[] guids;
-            if (searchType == EAssetSearchType.All)
+            if (string.IsNullOrEmpty(searchType) || searchType == EAssetSearchType.All.ToString())
                 guids = AssetDatabase.FindAssets(string.Empty, searchInFolders);
             else
                 guids = AssetDatabase.FindAssets($"t:{searchType}", searchInFolders);
@@ -206,7 +228,7 @@ namespace YooAsset.Editor
         /// <param name="searchType">搜集的资源类型</param>
         /// <param name="searchInFolder">指定搜索的文件夹</param>
         /// <returns>返回搜集到的资源路径列表</returns>
-        public static string[] FindAssets(EAssetSearchType searchType, string searchInFolder)
+        public static string[] FindAssets(string searchType, string searchInFolder)
         {
             return FindAssets(searchType, new string[] { searchInFolder });
         }

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadBackend.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 97923f5987c469a4898718033af09e99
+guid: bb70e2274ce5a5d419cfbd7212efdf4a
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadBackend/UnityWebRequestBackend.cs

@@ -0,0 +1,110 @@
+using System;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest 下载后台
+    /// </summary>
+    /// <remarks>
+    /// 基于 Unity 内置 UnityWebRequest 实现的下载后台。
+    /// 支持自定义 UnityWebRequest 创建方式，例如添加证书验证、代理设置等。
+    /// </remarks>
+    internal sealed class UnityWebRequestBackend : IDownloadBackend
+    {
+        private readonly UnityWebRequestDelegate _webRequestCreator;
+
+        /// <summary>
+        /// 后端名称
+        /// </summary>
+        public string Name
+        {
+            get { return nameof(UnityWebRequestBackend); }
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest 下载后端（使用默认创建方式）
+        /// </summary>
+        public UnityWebRequestBackend() : this(null)
+        {
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest 下载后端
+        /// </summary>
+        /// <param name="webRequestCreator">
+        /// 自定义 UnityWebRequest 创建委托（可选）。
+        /// 如果为 null，则使用默认的 UnityWebRequest 构造方式。
+        /// </param>
+        public UnityWebRequestBackend(UnityWebRequestDelegate webRequestCreator)
+        {
+            _webRequestCreator = webRequestCreator;
+        }
+
+        /// <summary>
+        /// 驱动更新
+        /// </summary>
+        /// <remarks>
+        /// UnityWebRequest 由 Unity 引擎自动驱动，无需额外更新。
+        /// </remarks>
+        public void Update()
+        {
+        }
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        public void Dispose()
+        {
+            // 无需释放资源
+        }
+
+        /// <summary>
+        /// 创建 HEAD 请求
+        /// </summary>
+        public IDownloadHeadRequest CreateHeadRequest(DownloadDataRequestArgs args)
+        {
+            return new UnityWebRequestHeadDownloader(args, _webRequestCreator);
+        }
+
+        /// <summary>
+        /// 创建文件下载请求
+        /// </summary>
+        public IDownloadFileRequest CreateFileRequest(DownloadFileRequestArgs args)
+        {
+            return new UnityWebRequestFileDownloader(args, _webRequestCreator);
+        }
+
+        /// <summary>
+        /// 创建字节下载请求
+        /// </summary>
+        public IDownloadBytesRequest CreateBytesRequest(DownloadDataRequestArgs args)
+        {
+            return new UnityWebRequestBytesDownloader(args, _webRequestCreator);
+        }
+
+        /// <summary>
+        /// 创建文本下载请求
+        /// </summary>
+        public IDownloadTextRequest CreateTextRequest(DownloadDataRequestArgs args)
+        {
+            return new UnityWebRequestTextDownloader(args, _webRequestCreator);
+        }
+
+        /// <summary>
+        /// 创建 AssetBundle 下载请求
+        /// </summary>
+        public IDownloadAssetBundleRequest CreateAssetBundleRequest(DownloadAssetBundleRequestArgs args)
+        {
+            return new UnityWebRequestAssetBundleDownloader(args, _webRequestCreator);
+        }
+
+        /// <summary>
+        /// 创建模拟下载请求
+        /// </summary>
+        public IDownloadFileRequest CreateSimulateRequest(DownloadSimulateRequestArgs args)
+        {
+            return new VirtualFileDownloader(args);
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadBackend/UnityWebRequestBackend.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 932e4c4574244dac8c27d9ddc156f8ff
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 1d30af9086de4fb282c2cdd3d26244c0
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestAssetBundleDownloader.cs

@@ -0,0 +1,92 @@
+using System;
+using UnityEngine;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest AssetBundle 下载器
+    /// </summary>
+    /// <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>
+    internal sealed class UnityWebRequestAssetBundleDownloader : UnityWebRequestDownloaderBase, IDownloadAssetBundleRequest
+    {
+        private readonly DownloadAssetBundleRequestArgs _args;
+        private DownloadHandlerAssetBundle _downloadHandler;
+
+        /// <summary>
+        /// 下载结果（AssetBundle 对象）
+        /// </summary>
+        public AssetBundle Result { get; private set; }
+
+        /// <summary>
+        /// 构造 AssetBundle 下载器
+        /// </summary>
+        /// <param name="args">AssetBundle 下载参数</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        public UnityWebRequestAssetBundleDownloader(DownloadAssetBundleRequestArgs args, UnityWebRequestDelegate webRequestCreator)
+            : base(args.URL, webRequestCreator)
+        {
+            _args = args;
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest
+        /// </summary>
+        protected override void CreateWebRequest()
+        {
+            _downloadHandler = CreateAssetBundleDownloadHandler();
+            _webRequest = CreateUnityWebRequestGet(URL);
+            _webRequest.downloadHandler = _downloadHandler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            ApplyRequestOptions(_args.Timeout, _args.WatchdogTime, _args.Headers);
+        }
+
+        /// <summary>
+        /// 请求成功时的回调
+        /// </summary>
+        protected override void OnRequestSucceed()
+        {
+            AssetBundle assetBundle = _downloadHandler.assetBundle;
+            if (assetBundle == null)
+            {
+                Status = EDownloadRequestStatus.Failed;
+                Error = $"[{GetType().Name}] URL: {URL} - AssetBundle object is null";
+            }
+            else
+            {
+                Result = assetBundle;
+            }
+        }
+
+        /// <summary>
+        /// 创建 AssetBundle 下载处理器
+        /// </summary>
+        private DownloadHandlerAssetBundle CreateAssetBundleDownloadHandler()
+        {
+            DownloadHandlerAssetBundle handler;
+
+            if (_args.DisableUnityWebCache)
+            {
+                // 禁用 Unity 缓存
+                handler = new DownloadHandlerAssetBundle(URL, _args.UnityCRC);
+            }
+            else
+            {
+                // 使用 Unity 缓存（需要 FileHash）
+                // The file hash defining the version of the asset bundle.
+                Hash128 fileHash = Hash128.Parse(_args.FileHash);
+                handler = new DownloadHandlerAssetBundle(URL, fileHash, _args.UnityCRC);
+            }
+
+#if UNITY_2020_3_OR_NEWER
+            // 禁用自动加载，允许手动控制加载时机
+            handler.autoLoadAssetBundle = false;
+#endif
+
+            return handler;
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestAssetBundleDownloader.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: e01cc308d7179a34281087fafe455b42
+guid: 6f635344c08e2b04295a108c2bcc6a40
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestBytesDownloader.cs

@@ -0,0 +1,61 @@
+using System;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest 字节下载器
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容保存到内存中的字节数组。
+    /// </remarks>
+    internal sealed class UnityWebRequestBytesDownloader : UnityWebRequestDownloaderBase, IDownloadBytesRequest
+    {
+        private readonly DownloadDataRequestArgs _args;
+
+        /// <summary>
+        /// 下载结果（字节数组）
+        /// </summary>
+        public byte[] Result { get; private set; }
+
+        /// <summary>
+        /// 构造字节数组下载器
+        /// </summary>
+        /// <param name="args">数据下载参数</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        public UnityWebRequestBytesDownloader(DownloadDataRequestArgs args, UnityWebRequestDelegate webRequestCreator)
+            : base(args.URL, webRequestCreator)
+        {
+            _args = args;
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest
+        /// </summary>
+        protected override void CreateWebRequest()
+        {
+            var handler = new DownloadHandlerBuffer();
+            _webRequest = CreateUnityWebRequestGet(URL);
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            ApplyRequestOptions(_args.Timeout, _args.WatchdogTime, _args.Headers);
+        }
+
+        /// <summary>
+        /// 请求成功时的回调
+        /// </summary>
+        protected override void OnRequestSucceed()
+        {
+            var fileData = _webRequest.downloadHandler.data;
+            if (fileData == null || fileData.Length == 0)
+            {
+                Status = EDownloadRequestStatus.Failed;
+                Error = $"[{GetType().Name}] URL: {URL} - Download bytes data is null or empty !";
+            }
+            else
+            {
+                Result = fileData;
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestBytesDownloader.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 6602c4be2ef295546b7bbb328de8fb0c
+guid: 38884a96e8c2df74082d4e059e2e73ed
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestDownloaderBase.cs

@@ -0,0 +1,290 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest 下载器基类
+    /// </summary>
+    /// <remarks>
+    /// 封装 UnityWebRequest 的通用下载逻辑，包括状态管理、进度追踪等。
+    /// 子类只需实现 CreateWebRequest 方法来创建特定类型的下载请求。
+    /// </remarks>
+    internal abstract class UnityWebRequestDownloaderBase : IDownloadRequest
+    {
+        private readonly UnityWebRequestDelegate _webRequestCreator;
+        protected UnityWebRequest _webRequest;
+
+        // 看门狗相关
+        private int _watchdogTime = 0;
+        private bool _watchdogAborted = false;
+        private long _lastDownloadBytes = -1;
+        private double _lastGetDataTime;
+
+        #region 接口实现
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        public string URL { get; }
+
+        /// <summary>
+        /// 是否完成
+        /// </summary>
+        /// <remarks>
+        /// 每次调用都会主动轮询请求 PollingRequest
+        /// </remarks>
+        public bool IsDone
+        {
+            get
+            {
+                PollingRequest();
+                return Status == EDownloadRequestStatus.Succeed
+                    || Status == EDownloadRequestStatus.Failed
+                    || Status == EDownloadRequestStatus.Aborted;
+            }
+        }
+
+        /// <summary>
+        /// 请求状态
+        /// </summary>
+        public EDownloadRequestStatus Status { get; protected set; }
+
+        /// <summary>
+        /// 当前下载进度（0f - 1f）
+        /// </summary>
+        public float DownloadProgress { get; private set; }
+
+        /// <summary>
+        /// 当前请求已接收的字节数
+        /// </summary>
+        public long DownloadedBytes { get; private set; }
+
+        /// <summary>
+        /// HTTP 返回码
+        /// </summary>
+        public long HttpCode { get; private set; }
+
+        /// <summary>
+        /// 错误信息
+        /// </summary>
+        public string Error { get; protected set; }
+        #endregion
+
+        /// <summary>
+        /// 构造下载器基类
+        /// </summary>
+        /// <param name="url">请求地址</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        protected UnityWebRequestDownloaderBase(string url, UnityWebRequestDelegate webRequestCreator)
+        {
+            URL = url;
+            _webRequestCreator = webRequestCreator;
+            Status = EDownloadRequestStatus.None;
+        }
+
+        /// <summary>
+        /// 发起请求
+        /// </summary>
+        public void SendRequest()
+        {
+            if (Status == EDownloadRequestStatus.None)
+            {
+                Status = EDownloadRequestStatus.Running;
+
+                try
+                {
+                    CreateWebRequest();
+
+                    if (_webRequest == null)
+                    {
+                        Status = EDownloadRequestStatus.Failed;
+                        Error = $"[{GetType().Name}] Created web request is null.";
+                    }
+                    else
+                    {
+                        _webRequest.SendWebRequest();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Status = EDownloadRequestStatus.Failed;
+                    Error = $"[{GetType().Name}] Failed to create web request : {ex.Message}";
+                }
+            }
+        }
+
+        /// <summary>
+        /// 轮询请求
+        /// </summary>
+        public void PollingRequest()
+        {
+            if (Status != EDownloadRequestStatus.Running)
+                return;
+
+            DownloadProgress = _webRequest.downloadProgress;
+            DownloadedBytes = (long)_webRequest.downloadedBytes;
+
+            CheckWatchdog();
+            if (_webRequest.isDone == false)
+                return;
+
+            HttpCode = _webRequest.responseCode;
+#if UNITY_2020_3_OR_NEWER
+            bool isSuccess = _webRequest.result == UnityWebRequest.Result.Success;
+#else
+            bool isSuccess = !_webRequest.isNetworkError && !_webRequest.isHttpError;
+#endif
+
+            if (isSuccess)
+            {
+                Status = EDownloadRequestStatus.Succeed;
+                OnRequestSucceed();
+            }
+            else
+            {
+                Status = EDownloadRequestStatus.Failed;
+                Error = $"[{GetType().Name}] URL: {URL} - 错误: {_webRequest.error}";
+                OnRequestFailed();
+            }
+
+            // 完成后释放
+            DisposeWebRequest();
+        }
+
+        /// <summary>
+        /// 中止请求
+        /// </summary>
+        public void AbortRequest()
+        {
+            if (Status == EDownloadRequestStatus.None || Status == EDownloadRequestStatus.Running)
+            {
+                Status = EDownloadRequestStatus.Aborted;
+                if (_webRequest != null)
+                    _webRequest.Abort();
+            }
+        }
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        public void Dispose()
+        {
+            DisposeWebRequest();
+        }
+
+
+        /// <summary>
+        /// 创建 UnityWebRequest（子类实现）
+        /// </summary>
+        protected abstract void CreateWebRequest();
+
+        /// <summary>
+        /// 请求成功时的回调（子类可重写）
+        /// </summary>
+        protected virtual void OnRequestSucceed()
+        {
+        }
+
+        /// <summary>
+        /// 请求失败时的回调（子类可重写）
+        /// </summary>
+        protected virtual void OnRequestFailed()
+        {
+        }
+
+
+        /// <summary>
+        /// 创建 UnityWebRequest GET 请求
+        /// </summary>
+        /// <param name="requestUrl">请求地址</param>
+        /// <returns>UnityWebRequest 实例</returns>
+        protected UnityWebRequest CreateUnityWebRequestGet(string requestUrl)
+        {
+            if (_webRequestCreator != null)
+                return _webRequestCreator.Invoke(requestUrl);
+
+            return new UnityWebRequest(requestUrl, UnityWebRequest.kHttpVerbGET);
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest HEAD 请求
+        /// </summary>
+        /// <param name="requestUrl">请求地址</param>
+        /// <returns>UnityWebRequest 实例</returns>
+        protected UnityWebRequest CreateUnityWebRequestHead(string requestUrl)
+        {
+            return new UnityWebRequest(requestUrl, UnityWebRequest.kHttpVerbHEAD);
+        }
+
+        /// <summary>
+        /// 应用通用请求参数
+        /// </summary>
+        protected void ApplyRequestOptions(int timeout, int watchdogTime, Dictionary<string, string> headers)
+        {
+            if (_webRequest == null)
+                throw new YooInternalException("Web request is null !");
+
+            // 设置看门狗超时时间
+            _watchdogTime = watchdogTime;
+
+            // 设置响应的超时时间
+            if (timeout > 0)
+                _webRequest.timeout = timeout;
+
+            // 设置响应头
+            if (headers != null)
+            {
+                foreach (var header in headers)
+                {
+                    _webRequest.SetRequestHeader(header.Key, header.Value);
+                }
+            }
+        }
+
+        /// <summary>
+        /// 检测看门狗
+        /// </summary>
+        private void CheckWatchdog()
+        {
+            if (_watchdogTime == 0)
+                return;
+            if (_watchdogAborted)
+                return;
+
+#if UNITY_2020_3_OR_NEWER
+            double realtimeSinceStartup = UnityEngine.Time.realtimeSinceStartupAsDouble;
+#else
+            double realtimeSinceStartup = UnityEngine.Time.realtimeSinceStartup;
+#endif
+
+            if (DownloadedBytes != _lastDownloadBytes)
+            {
+                _lastDownloadBytes = DownloadedBytes;
+                _lastGetDataTime = realtimeSinceStartup;
+            }
+            else
+            {
+                double deltaTime = realtimeSinceStartup - _lastGetDataTime;
+                if (deltaTime > _watchdogTime)
+                {
+                    _watchdogAborted = true;
+                    AbortRequest(); //看门狗终止网络请求
+                }
+            }
+        }
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        private void DisposeWebRequest()
+        {
+            if (_webRequest != null)
+            {
+                //注意：引擎底层会自动调用Abort方法
+                _webRequest.Dispose();
+                _webRequest = null;
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestDownloaderBase.cs.meta

@@ -1,5 +1,5 @@
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+guid: 76b0712524ed69542914db8e44fa64fd
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestFileDownloader.cs

@@ -0,0 +1,56 @@
+using System;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest 文件下载器
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容保存到本地文件，支持断点续传和追加写入。
+    /// </remarks>
+    internal sealed class UnityWebRequestFileDownloader : UnityWebRequestDownloaderBase, IDownloadFileRequest
+    {
+        private readonly DownloadFileRequestArgs _args;
+
+        /// <summary>
+        /// 文件保存路径
+        /// </summary>
+        public string SavePath
+        {
+            get { return _args.SavePath; }
+        }
+
+        /// <summary>
+        /// 构造文件下载器
+        /// </summary>
+        /// <param name="args">文件下载参数</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        public UnityWebRequestFileDownloader(DownloadFileRequestArgs args, UnityWebRequestDelegate webRequestCreator)
+            : base(args.URL, webRequestCreator)
+        {
+            _args = args;
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest
+        /// </summary>
+        protected override void CreateWebRequest()
+        {
+            var handler = new DownloadHandlerFile(_args.SavePath, _args.AppendToFile);
+            handler.removeFileOnAbort = _args.RemoveFileOnAbort;
+
+            _webRequest = CreateUnityWebRequestGet(URL);
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+
+            // 断点续传：设置 Range 请求头
+            if (_args.ResumeFromBytes > 0)
+            {
+                _webRequest.SetRequestHeader("Range", $"bytes={_args.ResumeFromBytes}-");
+            }
+
+            ApplyRequestOptions(_args.Timeout, _args.WatchdogTime, _args.Headers);
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestFileDownloader.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: b7557eb146572de49a1ec9b3f3c0b706
+guid: 101a4be1bb0a85c4d84ecbf3e74f89e4
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestHeadDownloader.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest HEAD 请求下载器
+    /// </summary>
+    /// <remarks>
+    /// 仅获取响应头信息，不下载实际内容。
+    /// 用于检查资源是否存在、获取资源大小、检查缓存有效性等场景。
+    /// </remarks>
+    internal sealed class UnityWebRequestHeadDownloader : UnityWebRequestDownloaderBase, IDownloadHeadRequest
+    {
+        // 注意：缓存响应头（因为 WebRequest 释放后无法获取）
+        private Dictionary<string, string> _cachedResponseHeaders;
+        private readonly DownloadDataRequestArgs _args;
+
+        /// <summary>
+        /// 获取 ETag 响应头
+        /// </summary>
+        public string ETag
+        {
+            get { return GetResponseHeader("ETag"); }
+        }
+
+        /// <summary>
+        /// 获取 Last-Modified 响应头
+        /// </summary>
+        public string LastModified
+        {
+            get { return GetResponseHeader("Last-Modified"); }
+        }
+
+        /// <summary>
+        /// 获取 Content-Type 响应头
+        /// </summary>
+        public string ContentType
+        {
+            get { return GetResponseHeader("Content-Type"); }
+        }
+
+        /// <summary>
+        /// 获取 Content-Length 响应头
+        /// 预期下载的总字节数
+        /// </summary>
+        public long ContentLength
+        {
+            get
+            {
+                string contentLengthStr = GetResponseHeader("Content-Length");
+                if (string.IsNullOrEmpty(contentLengthStr))
+                    return -1;
+
+                if (long.TryParse(contentLengthStr, out long contentLength))
+                {
+                    return contentLength;
+                }
+                else
+                {
+                    return -1;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 构造 HEAD 请求下载器
+        /// </summary>
+        /// <param name="args">数据下载参数</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        public UnityWebRequestHeadDownloader(DownloadDataRequestArgs args, UnityWebRequestDelegate webRequestCreator)
+                            : base(args.URL, webRequestCreator)
+        {
+            _args = args;
+        }
+
+        /// <summary>
+        /// 获取响应头信息
+        /// </summary>
+        /// <param name="name">响应头名称（不区分大小写）</param>
+        /// <returns>响应头的值，如果不存在或请求未完成则返回 null</returns>
+        public string GetResponseHeader(string name)
+        {
+            if (_cachedResponseHeaders == null)
+                return null;
+
+            // 注意：UnityWebRequest 的响应头 key 是小写的
+            string lowerName = name.ToLowerInvariant();
+            if (_cachedResponseHeaders.TryGetValue(lowerName, out string value))
+                return value;
+
+            return null;
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest
+        /// </summary>
+        protected override void CreateWebRequest()
+        {
+            _webRequest = CreateUnityWebRequestHead(URL);
+            _webRequest.downloadHandler = null; // HEAD 请求不需要 DownloadHandler
+            ApplyRequestOptions(_args.Timeout, _args.WatchdogTime, _args.Headers);
+        }
+
+        /// <summary>
+        /// 请求成功时的回调
+        /// </summary>
+        protected override void OnRequestSucceed()
+        {
+            var headers = _webRequest.GetResponseHeaders();
+            if (headers != null)
+            {
+                _cachedResponseHeaders = new Dictionary<string, string>(headers.Count, StringComparer.OrdinalIgnoreCase);
+                foreach (var kvp in headers)
+                {
+                    string name = kvp.Key.ToLowerInvariant();
+                    string value = kvp.Value;
+                    _cachedResponseHeaders[name] = value;
+                }
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestHeadDownloader.cs.meta

@@ -0,0 +1,11 @@
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+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestTextDownloader.cs

@@ -0,0 +1,61 @@
+using System;
+using UnityEngine.Networking;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// UnityWebRequest 文本下载器
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容解析为 UTF-8 文本字符串。
+    /// </remarks>
+    internal sealed class UnityWebRequestTextDownloader : UnityWebRequestDownloaderBase, IDownloadTextRequest
+    {
+        private readonly DownloadDataRequestArgs _args;
+
+        /// <summary>
+        /// 下载结果（文本字符串）
+        /// </summary>
+        public string Result { get; private set; }
+
+        /// <summary>
+        /// 构造文本下载器
+        /// </summary>
+        /// <param name="args">数据下载参数</param>
+        /// <param name="webRequestCreator">UnityWebRequest 创建器（可选）</param>
+        public UnityWebRequestTextDownloader(DownloadDataRequestArgs args, UnityWebRequestDelegate webRequestCreator)
+            : base(args.URL, webRequestCreator)
+        {
+            _args = args;
+        }
+
+        /// <summary>
+        /// 创建 UnityWebRequest
+        /// </summary>
+        protected override void CreateWebRequest()
+        {
+            var handler = new DownloadHandlerBuffer();
+            _webRequest = CreateUnityWebRequestGet(URL);
+            _webRequest.downloadHandler = handler;
+            _webRequest.disposeDownloadHandlerOnDispose = true;
+            ApplyRequestOptions(_args.Timeout, _args.WatchdogTime, _args.Headers);
+        }
+
+        /// <summary>
+        /// 请求成功时的回调
+        /// </summary>
+        protected override void OnRequestSucceed()
+        {
+            var fileText = _webRequest.downloadHandler.text;
+            if (string.IsNullOrEmpty(fileText))
+            {
+                Status = EDownloadRequestStatus.Failed;
+                Error = $"[{GetType().Name}] URL: {URL} - Download text data is null or empty";
+            }
+            else
+            {
+                Result = fileText;
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/UnityWebRequestTextDownloader.cs.meta

@@ -0,0 +1,11 @@
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+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/VirtualFileDownloader.cs

@@ -0,0 +1,149 @@
+using System;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 模拟下载器
+    /// </summary>
+    /// <remarks>
+    /// 用于编辑器模式下模拟下载进度，不进行实际网络请求。
+    /// 根据配置的下载速度模拟进度变化。
+    /// </remarks>
+    internal sealed class VirtualFileDownloader : IDownloadFileRequest
+    {
+        private readonly DownloadSimulateRequestArgs _args;
+        private double _lastUpdateTime;
+
+        /// <summary>
+        /// 文件保存路径（模拟下载不需要）
+        /// </summary>
+        public string SavePath
+        {
+            get { return null; }
+        }
+
+        #region 接口实现
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        public string URL { get; }
+
+        /// <summary>
+        /// 是否完成
+        /// </summary>
+        public bool IsDone
+        {
+            get
+            {
+                PollingRequest();
+                return Status == EDownloadRequestStatus.Succeed
+                    || Status == EDownloadRequestStatus.Failed
+                    || Status == EDownloadRequestStatus.Aborted;
+            }
+        }
+
+        /// <summary>
+        /// 请求状态
+        /// </summary>
+        public EDownloadRequestStatus Status { get; private set; }
+
+        /// <summary>
+        /// 当前下载进度（0f - 1f）
+        /// </summary>
+        public float DownloadProgress { get; private set; }
+
+        /// <summary>
+        /// 当前请求已接收的字节数
+        /// </summary>
+        public long DownloadedBytes { get; private set; }
+
+        /// <summary>
+        /// HTTP 返回码（模拟固定返回 200）
+        /// </summary>
+        public long HttpCode { get; private set; }
+
+        /// <summary>
+        /// 错误信息
+        /// </summary>
+        public string Error { get; private set; }
+        #endregion
+
+        /// <summary>
+        /// 构造模拟下载器
+        /// </summary>
+        /// <param name="args">模拟下载参数</param>
+        public VirtualFileDownloader(DownloadSimulateRequestArgs args)
+        {
+            _args = args;
+            Status = EDownloadRequestStatus.None;
+        }
+
+        /// <summary>
+        /// 发起请求
+        /// </summary>
+        public void SendRequest()
+        {
+            if (Status == EDownloadRequestStatus.None)
+            {
+                Status = EDownloadRequestStatus.Running;
+                _lastUpdateTime = GetUnityEngineRealtime();
+            }
+        }
+
+        /// <summary>
+        /// 轮询请求
+        /// </summary>
+        public void PollingRequest()
+        {
+            if (Status != EDownloadRequestStatus.Running)
+                return;
+
+            double currentTime = GetUnityEngineRealtime();
+            double deltaTime = currentTime - _lastUpdateTime;
+            _lastUpdateTime = currentTime;
+
+            // 计算本帧下载的字节数
+            long downloadBytes = (long)(_args.DownloadSpeed * deltaTime);
+            DownloadedBytes += downloadBytes;
+
+            if (_args.FileSize > 0)
+                DownloadProgress = (float)DownloadedBytes / _args.FileSize;
+
+            // 检查是否完成
+            if (DownloadedBytes >= _args.FileSize)
+            {
+                HttpCode = 200;
+                DownloadProgress = 1f;
+                DownloadedBytes = _args.FileSize;
+                Status = EDownloadRequestStatus.Succeed;
+            }
+        }
+
+        /// <summary>
+        /// 中止请求
+        /// </summary>
+        public void AbortRequest()
+        {
+            if (Status == EDownloadRequestStatus.None || Status == EDownloadRequestStatus.Running)
+            {
+                Status = EDownloadRequestStatus.Aborted;
+            }
+        }
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        public void Dispose()
+        {
+        }
+
+        private double GetUnityEngineRealtime()
+        {
+#if UNITY_2020_3_OR_NEWER
+            return UnityEngine.Time.realtimeSinceStartupAsDouble;
+#else
+            return = UnityEngine.Time.realtimeSinceStartup;
+#endif
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DefaultDownloadRequest/VirtualFileDownloader.cs.meta

@@ -0,0 +1,11 @@
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Assets/YooAsset/Runtime/DownloadSystem/DownloadDefine.cs

@@ -1,118 +0,0 @@
-
-namespace YooAsset
-{
-    /// <summary>
-    /// 下载器结束
-    /// </summary>
-    public struct DownloaderFinishData
-    {
-        /// <summary>
-        /// 所属包裹名称
-        /// </summary>
-        public string PackageName;
-
-        /// <summary>
-        /// 是否成功
-        /// </summary>
-        public bool Succeed;
-    }
-
-    /// <summary>
-    /// 下载器相关的更新数据
-    /// </summary>
-    public struct DownloadUpdateData
-    {
-        /// <summary>
-        /// 所属包裹名称
-        /// </summary>
-        public string PackageName;
-
-        /// <summary>
-        /// 下载进度 (0-1f)
-        /// </summary>
-        public float Progress;
-
-        /// <summary>
-        /// 下载文件总数
-        /// </summary>
-        public int TotalDownloadCount;
-
-        /// <summary>
-        /// 当前完成的下载文件数量
-        /// </summary>
-        public int CurrentDownloadCount;
-
-        /// <summary>
-        /// 下载数据总大小（单位：字节）
-        /// </summary>
-        public long TotalDownloadBytes;
-
-        /// <summary>
-        /// 当前完成的下载数据大小（单位：字节）
-        /// </summary>
-        public long CurrentDownloadBytes;
-    }
-
-    /// <summary>
-    /// 下载器相关的错误数据
-    /// </summary>
-    public struct DownloadErrorData
-    {
-        /// <summary>
-        /// 所属包裹名称
-        /// </summary>
-        public string PackageName;
-
-        /// <summary>
-        /// 下载失败的文件名称
-        /// </summary>
-        public string FileName;
-
-        /// <summary>
-        /// 错误信息
-        /// </summary>
-        public string ErrorInfo;
-    }
-
-    /// <summary>
-    /// 下载器相关的文件数据
-    /// </summary>
-    public struct DownloadFileData
-    {
-        /// <summary>
-        /// 所属包裹名称
-        /// </summary>
-        public string PackageName;
-
-        /// <summary>
-        /// 下载的文件名称
-        /// </summary>
-        public string FileName;
-
-        /// <summary>
-        /// 下载的文件大小
-        /// </summary>
-        public long FileSize;
-    }
-
-    /// <summary>
-    /// 导入文件的信息
-    /// </summary>
-    public struct ImportFileInfo
-    {
-        /// <summary>
-        /// 本地文件路径
-        /// </summary>
-        public string FilePath;
-
-        /// <summary>
-        /// 资源包名称
-        /// </summary>
-        public string BundleName;
-
-        /// <summary>
-        /// 资源包GUID
-        /// </summary>
-        public string BundleGUID;
-    }
-}

Assets/YooAsset/Runtime/DownloadSystem/DownloadSystemDefine.cs

@@ -0,0 +1,443 @@
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 下载器结束
+    /// </summary>
+    public struct DownloaderFinishData
+    {
+        /// <summary>
+        /// 所属包裹名称
+        /// </summary>
+        public string PackageName;
+
+        /// <summary>
+        /// 是否成功
+        /// </summary>
+        public bool Succeed;
+    }
+
+    /// <summary>
+    /// 下载器相关的更新数据
+    /// </summary>
+    public struct DownloadUpdateData
+    {
+        /// <summary>
+        /// 所属包裹名称
+        /// </summary>
+        public string PackageName;
+
+        /// <summary>
+        /// 下载进度 (0-1f)
+        /// </summary>
+        public float Progress;
+
+        /// <summary>
+        /// 下载文件总数
+        /// </summary>
+        public int TotalDownloadCount;
+
+        /// <summary>
+        /// 当前完成的下载文件数量
+        /// </summary>
+        public int CurrentDownloadCount;
+
+        /// <summary>
+        /// 下载数据总大小（单位：字节）
+        /// </summary>
+        public long TotalDownloadBytes;
+
+        /// <summary>
+        /// 当前完成的下载数据大小（单位：字节）
+        /// </summary>
+        public long CurrentDownloadBytes;
+    }
+
+    /// <summary>
+    /// 下载器相关的错误数据
+    /// </summary>
+    public struct DownloadErrorData
+    {
+        /// <summary>
+        /// 所属包裹名称
+        /// </summary>
+        public string PackageName;
+
+        /// <summary>
+        /// 下载失败的文件名称
+        /// </summary>
+        public string FileName;
+
+        /// <summary>
+        /// 错误信息
+        /// </summary>
+        public string ErrorInfo;
+    }
+
+    /// <summary>
+    /// 下载器相关的文件数据
+    /// </summary>
+    public struct DownloadFileData
+    {
+        /// <summary>
+        /// 所属包裹名称
+        /// </summary>
+        public string PackageName;
+
+        /// <summary>
+        /// 下载的文件名称
+        /// </summary>
+        public string FileName;
+
+        /// <summary>
+        /// 下载的文件大小
+        /// </summary>
+        public long FileSize;
+    }
+
+    /// <summary>
+    /// 导入文件的信息
+    /// </summary>
+    public struct ImportFileInfo
+    {
+        /// <summary>
+        /// 本地文件路径
+        /// </summary>
+        public string FilePath;
+
+        /// <summary>
+        /// 资源包名称
+        /// </summary>
+        public string BundleName;
+
+        /// <summary>
+        /// 资源包GUID
+        /// </summary>
+        public string BundleGUID;
+    }
+
+
+    /// <summary>
+    /// 下载请求状态
+    /// </summary>
+    internal enum EDownloadRequestStatus
+    {
+        /// <summary>
+        /// 未开始
+        /// </summary>
+        None,
+
+        /// <summary>
+        /// 进行中
+        /// </summary>
+        Running,
+
+        /// <summary>
+        /// 已成功
+        /// </summary>
+        Succeed,
+
+        /// <summary>
+        /// 已失败
+        /// </summary>
+        Failed,
+
+        /// <summary>
+        /// 已中止
+        /// </summary>
+        Aborted,
+    }
+
+    /// <summary>
+    /// 文件下载请求参数
+    /// </summary>
+    /// <remarks>
+    /// 用于将下载内容保存到本地文件的请求配置。
+    /// 支持断点续传和追加写入模式。
+    /// </remarks>
+    internal struct DownloadFileRequestArgs
+    {
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        public readonly string URL;
+
+        /// <summary>
+        /// 响应的超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 当 Timeout 设置为 0 时，不应用超时。
+        /// 设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </remarks>
+        public readonly int Timeout;
+
+        /// <summary>
+        /// 看门狗超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 用于监控下载任务的数据接收情况。
+        /// 规则说明：
+        /// 1. 当设置值为 0 时，表示禁用看门狗监控。
+        /// 2. 每次接收到下载数据时，看门狗计时器会重置。
+        /// 3. 若在设定的时间范围内未收到任何数据，任务将被自动终止。
+        /// </remarks>
+        public readonly int WatchdogTime;
+
+        /// <summary>
+        /// 文件保存路径
+        /// </summary>
+        public readonly string SavePath;
+
+        /// <summary>
+        /// 是否追加写入文件
+        /// </summary>
+        /// <remarks>
+        /// 配合 ResumeFromBytes 使用，用于断点续传场景。
+        /// </remarks>
+        public readonly bool AppendToFile;
+
+        /// <summary>
+        /// 中止请求时是否删除目标文件
+        /// </summary>
+        public readonly bool RemoveFileOnAbort;
+
+        /// <summary>
+        /// 断点续传的起始字节（小于等于 0 表示不启用）
+        /// </summary>
+        /// <remarks>
+        /// 推荐由后端自动设置 Range 请求头："bytes={ResumeFromBytes}-"。
+        /// </remarks>
+        public readonly long ResumeFromBytes;
+
+        /// <summary>
+        /// 自定义请求头（可选）
+        /// </summary>
+        public Dictionary<string, string> Headers;
+
+        /// <summary>
+        /// 构造文件下载请求参数
+        /// </summary>
+        public DownloadFileRequestArgs(
+            string url,
+            string savePath,
+            int timeout,
+            int watchdogTime,
+            bool appendToFile = false,
+            bool removeFileOnAbort = true,
+            long resumeFromBytes = 0)
+        {
+            URL = url;
+            SavePath = savePath;
+            Timeout = timeout;
+            WatchdogTime = watchdogTime;
+            AppendToFile = appendToFile;
+            RemoveFileOnAbort = removeFileOnAbort;
+            ResumeFromBytes = resumeFromBytes;
+            Headers = null;
+        }
+
+        /// <summary>
+        /// 添加请求头数据
+        /// </summary>
+        public void AddRequestHeader(string name, string value)
+        {
+            if (Headers == null)
+                Headers = new Dictionary<string, string>(10);
+            Headers.Add(name, value);
+        }
+    }
+
+    /// <summary>
+    /// 数据下载请求参数（通用）
+    /// </summary>
+    /// <remarks>
+    /// 用于下载到内存的请求配置。
+    /// 可用于字节数组（bytes）或文本（text）下载。
+    /// </remarks>
+    internal struct DownloadDataRequestArgs
+    {
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        public readonly string URL;
+
+        /// <summary>
+        /// 响应的超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 当 Timeout 设置为 0 时，不应用超时。
+        /// 设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </remarks>
+        public readonly int Timeout;
+
+        /// <summary>
+        /// 看门狗超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 用于监控下载任务的数据接收情况。
+        /// 规则说明：
+        /// 1. 当设置值为 0 时，表示禁用看门狗监控。
+        /// 2. 每次接收到下载数据时，看门狗计时器会重置。
+        /// 3. 若在设定的时间范围内未收到任何数据，任务将被自动终止。
+        /// </remarks>
+        public readonly int WatchdogTime;
+
+        /// <summary>
+        /// 自定义请求头（可选）
+        /// </summary>
+        public Dictionary<string, string> Headers;
+
+        /// <summary>
+        /// 构造数据下载请求参数
+        /// </summary>
+        /// <param name="url">请求地址</param>
+        /// <param name="options">通用请求参数</param>
+        public DownloadDataRequestArgs(string url, int timeout, int watchdogTime)
+        {
+            URL = url;
+            Timeout = timeout;
+            WatchdogTime = watchdogTime;
+            Headers = null;
+        }
+
+        /// <summary>
+        /// 添加请求头数据
+        /// </summary>
+        public void AddRequestHeader(string name, string value)
+        {
+            if (Headers == null)
+                Headers = new Dictionary<string, string>(10);
+            Headers.Add(name, value);
+        }
+    }
+
+    /// <summary>
+    /// AssetBundle 下载请求参数
+    /// </summary>
+    /// <remarks>
+    /// 用于下载并加载 Unity AssetBundle 的请求配置。
+    /// 支持 Unity 内置缓存机制和 CRC 校验。
+    /// </remarks>
+    internal struct DownloadAssetBundleRequestArgs
+    {
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        public readonly string URL;
+
+        /// <summary>
+        /// 响应的超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 当 Timeout 设置为 0 时，不应用超时。
+        /// 设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
+        /// </remarks>
+        public readonly int Timeout;
+
+        /// <summary>
+        /// 看门狗超时时间（单位：秒）
+        /// </summary>
+        /// <remarks>
+        /// 用于监控下载任务的数据接收情况。
+        /// 规则说明：
+        /// 1. 当设置值为 0 时，表示禁用看门狗监控。
+        /// 2. 每次接收到下载数据时，看门狗计时器会重置。
+        /// 3. 若在设定的时间范围内未收到任何数据，任务将被自动终止。
+        /// </remarks>
+        public readonly int WatchdogTime;
+
+        /// <summary>
+        /// 禁用 Unity 的网络缓存
+        /// </summary>
+        public readonly bool DisableUnityWebCache;
+
+        /// <summary>
+        /// AssetBundle 文件哈希（用于 UnityWebRequest 的缓存）
+        /// </summary>
+        /// <remarks>
+        /// 仅当 DisableUnityWebCache 为 false 时需要。
+        /// </remarks>
+        public readonly string FileHash;
+
+        /// <summary>
+        /// Unity CRC 校验值
+        /// </summary>
+        public readonly uint UnityCRC;
+
+        /// <summary>
+        /// 自定义请求头（可选）
+        /// </summary>
+        public Dictionary<string, string> Headers;
+
+        /// <summary>
+        /// 构造 AssetBundle 下载请求参数
+        /// </summary>
+        public DownloadAssetBundleRequestArgs(
+            string url,
+            int timeout,
+            int watchdogTime,
+            bool disableUnityWebCache = true,
+            string fileHash = null,
+            uint unityCrc = 0)
+        {
+            URL = url;
+            Timeout = timeout;
+            WatchdogTime = watchdogTime;
+            DisableUnityWebCache = disableUnityWebCache;
+            FileHash = fileHash;
+            UnityCRC = unityCrc;
+            Headers = null;
+        }
+
+        /// <summary>
+        /// 添加请求头数据
+        /// </summary>
+        public void AddRequestHeader(string name, string value)
+        {
+            if (Headers == null)
+                Headers = new Dictionary<string, string>(10);
+            Headers.Add(name, value);
+        }
+    }
+
+    /// <summary>
+    /// 模拟下载请求参数
+    /// </summary>
+    /// <remarks>
+    /// 用于编辑器模式下模拟下载进度，不进行实际网络请求。
+    /// </remarks>
+    internal struct DownloadSimulateRequestArgs
+    {
+        /// <summary>
+        /// 请求地址（仅用于标识）
+        /// </summary>
+        public readonly string URL;
+
+        /// <summary>
+        /// 模拟的文件大小（字节）
+        /// </summary>
+        public readonly long FileSize;
+
+        /// <summary>
+        /// 模拟的下载速度（字节/秒）
+        /// </summary>
+        /// <remarks>
+        /// 用于计算模拟的下载进度。
+        /// </remarks>
+        public readonly long DownloadSpeed;
+
+        /// <summary>
+        /// 构造模拟下载请求参数
+        /// </summary>
+        /// <param name="url">请求地址（仅用于标识）</param>
+        /// <param name="fileSize">模拟的文件大小（字节）</param>
+        /// <param name="downloadSpeed">模拟的下载速度（字节/秒），默认 1MB/s</param>
+        public DownloadSimulateRequestArgs(string url, long fileSize, long downloadSpeed = 1024 * 1024)
+        {
+            URL = url;
+            FileSize = fileSize;
+            DownloadSpeed = downloadSpeed > 0 ? downloadSpeed : 1024 * 1024;
+        }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/DownloadSystemDefine.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: eb0480e877454f7c944f66a01646b6d4
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/DownloadSystemHelper.cs

@@ -37,13 +37,17 @@ namespace YooAsset
             string url;
 
             // 获取对应平台的URL地址
+            // 说明：苹果不同设备上操作系统不同。
+            // 说明：iPhone和iPod对应的是iOS系统。
+            // 说明：iPad对应的是iPadOS系统。
+            // 说明：AppleTV对应的是tvOS系统。
 #if UNITY_EDITOR_OSX
             url = StringUtility.Format("file://{0}", path);
-#elif UNITY_EDITOR
+#elif UNITY_EDITOR_WIN
             url = StringUtility.Format("file:///{0}", path);
 #elif UNITY_WEBGL
             url = path;
-#elif UNITY_IPHONE
+#elif UNITY_IOS || UNITY_IPHONE
             url = StringUtility.Format("file://{0}", path);
 #elif UNITY_ANDROID
             if (path.StartsWith("jar:file://"))
@@ -65,12 +69,17 @@ namespace YooAsset
                 else
                     url = StringUtility.Format("file://{0}", path);
             }
-#elif UNITY_STANDALONE_OSX
-            url = new System.Uri(path).ToString();
-#elif UNITY_STANDALONE || UNITY_WSA
+
+#elif UNITY_WSA
             url = StringUtility.Format("file:///{0}", path);
 #elif UNITY_TVOS
             url = StringUtility.Format("file:///{0}", path);
+#elif UNITY_STANDALONE_OSX
+            url = new System.Uri(path).ToString();
+#elif UNITY_STANDALONE_WIN
+            url = StringUtility.Format("file:///{0}", path);
+#elif UNITY_STANDALONE_LINUX
+            url = StringUtility.Format("file:///root/{0}", path);
 #else
             throw new System.NotImplementedException();
 #endif
@@ -85,8 +94,12 @@ namespace YooAsset
         public static bool IsRequestLocalFile(string url)
         {
             //TODO UNITY_STANDALONE_OSX平台目前无法确定
+
+            // 本地文件传输协议
             if (url.StartsWith("file:"))
                 return true;
+
+            // JAR文件协议
             if (url.StartsWith("jar:file:"))
                 return true;
 

Assets/YooAsset/Runtime/DownloadSystem/Interface.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 4630dac2050606043bb146325fdce6ad
+guid: d724672f4d6f24b4db435d10eef6c40d
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Assets/YooAsset/Runtime/DownloadSystem/Interface/IDownloadBackend.cs

@@ -0,0 +1,78 @@
+using System;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 下载后台接口
+    /// </summary>
+    /// <remarks>
+    /// 不同网络库（UnityWebRequest / BestHTTP / 自研）实现该接口，用于创建具体下载请求。
+    /// 每个后台实例是独立的，不共享全局状态。
+    /// </remarks>
+    internal interface IDownloadBackend : IDisposable
+    {
+        /// <summary>
+        /// 后台名称（用于日志与调试）
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// 驱动更新
+        /// </summary>
+        /// <remarks>
+        /// 部分第三方网络库需要在 Unity 主线程中周期性调用 Update 进行驱动。
+        /// 不需要驱动的后台可实现为空方法。
+        /// </remarks>
+        void Update();
+
+        /// <summary>
+        /// 创建 HEAD 请求
+        /// </summary>
+        /// <remarks>
+        /// 仅获取响应头信息，不下载实际内容。
+        /// 用于检查资源是否存在、获取资源大小、检查缓存有效性等场景。
+        /// </remarks>
+        /// <param name="args">数据请求参数</param>
+        /// <returns>HEAD 请求实例</returns>
+        IDownloadHeadRequest CreateHeadRequest(DownloadDataRequestArgs args);
+
+        /// <summary>
+        /// 创建文件下载请求
+        /// </summary>
+        /// <param name="args">文件下载参数</param>
+        /// <returns>文件下载请求实例</returns>
+        IDownloadFileRequest CreateFileRequest(DownloadFileRequestArgs args);
+
+        /// <summary>
+        /// 创建内存下载请求（字节数组）
+        /// </summary>
+        /// <param name="args">数据下载参数</param>
+        /// <returns>字节下载请求实例</returns>
+        IDownloadBytesRequest CreateBytesRequest(DownloadDataRequestArgs args);
+
+        /// <summary>
+        /// 创建文本下载请求
+        /// </summary>
+        /// <param name="args">数据下载参数</param>
+        /// <returns>文本下载请求实例</returns>
+        IDownloadTextRequest CreateTextRequest(DownloadDataRequestArgs args);
+
+        /// <summary>
+        /// 创建 AssetBundle 下载请求
+        /// </summary>
+        /// <param name="args">AssetBundle 下载参数</param>
+        /// <returns>AssetBundle 下载请求实例</returns>
+        IDownloadAssetBundleRequest CreateAssetBundleRequest(DownloadAssetBundleRequestArgs args);
+
+        /// <summary>
+        /// 创建模拟下载请求
+        /// </summary>
+        /// <remarks>
+        /// 用于编辑器模式下模拟下载进度，不进行实际网络请求。
+        /// 可用于测试下载流程和 UI 展示。
+        /// </remarks>
+        /// <param name="args">模拟下载参数</param>
+        /// <returns>模拟下载请求实例</returns>
+        IDownloadFileRequest CreateSimulateRequest(DownloadSimulateRequestArgs args);
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/Interface/IDownloadBackend.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e88c026ebbfb40258aad52ad1c2feb70
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/Interface/IDownloadRequest.cs

@@ -0,0 +1,194 @@
+using System;
+
+namespace YooAsset
+{
+    /// <summary>
+    /// 可轮询的下载请求接口
+    /// </summary>
+    /// <remarks>
+    /// 上层通常会在每帧轮询 Status IsDone，并在完成后读取结果。
+    /// </remarks>
+    internal interface IDownloadRequest : IDisposable
+    {
+        /// <summary>
+        /// 请求地址
+        /// </summary>
+        string URL { get; }
+
+        /// <summary>
+        /// 是否完成（成功/失败/中止）
+        /// </summary>
+        bool IsDone { get; }
+
+        /// <summary>
+        /// 请求状态
+        /// </summary>
+        EDownloadRequestStatus Status { get; }
+
+        /// <summary>
+        /// 当前下载进度（0f - 1f）
+        /// </summary>
+        /// <remarks>
+        /// 部分情况下无法准确获取总长度，可返回 0。
+        /// </remarks>
+        float DownloadProgress { get; }
+
+        /// <summary>
+        /// 当前请求已接收的字节数
+        /// </summary>
+        /// <remarks>
+        /// 断点续传场景下，该值仅表示"本次请求新增下载的字节数"，不包含已存在的本地文件长度。
+        /// </remarks>
+        long DownloadedBytes { get; }
+
+        /// <summary>
+        /// HTTP 返回码
+        /// </summary>
+        /// <remarks>
+        /// 非 HTTP 协议可返回 0。使用 long 类型以兼容各种协议的返回码。
+        /// </remarks>
+        long HttpCode { get; }
+
+        /// <summary>
+        /// 错误信息
+        /// </summary>
+        /// <remarks>
+        /// 失败时不为空。
+        /// </remarks>
+        string Error { get; }
+
+        /// <summary>
+        /// 发起请求
+        /// </summary>
+        void SendRequest();
+
+        /// <summary>
+        /// 轮询请求
+        /// </summary>
+        void PollingRequest();
+
+        /// <summary>
+        /// 中止请求
+        /// </summary>
+        void AbortRequest();
+    }
+
+    /// <summary>
+    /// HEAD 请求接口（仅获取响应头）
+    /// </summary>
+    /// <remarks>
+    /// 用于检查资源是否存在、获取资源大小、检查缓存有效性等场景。
+    /// 不下载实际内容，仅获取响应头信息。
+    /// </remarks>
+    internal interface IDownloadHeadRequest : IDownloadRequest
+    {
+        /// <summary>
+        /// 获取 ETag 响应头
+        /// </summary>
+        /// <remarks>
+        /// 用于缓存验证，如果服务器未返回则为 null。
+        /// </remarks>
+        string ETag { get; }
+
+        /// <summary>
+        /// 获取 Last-Modified 响应头
+        /// </summary>
+        /// <remarks>
+        /// 资源最后修改时间，如果服务器未返回则为 null。
+        /// </remarks>
+        string LastModified { get; }
+
+        /// <summary>
+        /// 获取 Content-Type 响应头
+        /// </summary>
+        /// <remarks>
+        /// 资源的 MIME 类型，如果服务器未返回则为 null。
+        /// </remarks>
+        string ContentType { get; }
+
+        /// <summary>
+        /// 预期下载的总字节数（Content-Length）
+        /// </summary>
+        /// <remarks>
+        /// 从响应头 Content-Length 获取。
+        /// 如果服务器未返回或请求未完成，返回 -1。
+        /// 用于更准确的进度计算。
+        /// </remarks>
+        long ContentLength { get; }
+
+        /// <summary>
+        /// 获取响应头信息
+        /// </summary>
+        /// <param name="name">响应头名称（不区分大小写）</param>
+        /// <returns>响应头的值，如果不存在或请求未完成则返回 null</returns>
+        /// <remarks>
+        /// 常用响应头：Content-Length、Content-Type、ETag、Last-Modified 等。
+        /// </remarks>
+        string GetResponseHeader(string name);
+    }
+
+    /// <summary>
+    /// 文件下载请求接口
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容保存到指定的本地文件路径。
+    /// </remarks>
+    internal interface IDownloadFileRequest : IDownloadRequest
+    {
+        /// <summary>
+        /// 文件保存路径
+        /// </summary>
+        string SavePath { get; }
+    }
+
+    /// <summary>
+    /// 内存下载请求接口（字节数组）
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容保存到内存中的字节数组。
+    /// </remarks>
+    internal interface IDownloadBytesRequest : IDownloadRequest
+    {
+        /// <summary>
+        /// 下载结果（字节数组）
+        /// </summary>
+        /// <remarks>
+        /// 仅在请求成功时可用，失败时为 null。
+        /// </remarks>
+        byte[] Result { get; }
+    }
+
+    /// <summary>
+    /// 文本下载请求接口
+    /// </summary>
+    /// <remarks>
+    /// 将下载内容解析为 UTF-8 文本字符串。
+    /// </remarks>
+    internal interface IDownloadTextRequest : IDownloadRequest
+    {
+        /// <summary>
+        /// 下载结果（文本字符串）
+        /// </summary>
+        /// <remarks>
+        /// 仅在请求成功时可用，失败时为 null。
+        /// </remarks>
+        string Result { get; }
+    }
+
+    /// <summary>
+    /// AssetBundle 下载请求接口
+    /// </summary>
+    /// <remarks>
+    /// 下载并加载 Unity AssetBundle 资源包。
+    /// </remarks>
+    internal interface IDownloadAssetBundleRequest : IDownloadRequest
+    {
+        /// <summary>
+        /// 下载结果（AssetBundle 对象）
+        /// </summary>
+        /// <remarks>
+        /// 仅在请求成功时可用，失败时为 null。
+        /// </remarks>
+        UnityEngine.AssetBundle Result { get; }
+    }
+}

Assets/YooAsset/Runtime/DownloadSystem/Interface/IDownloadRequest.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2a2aafeb309243f4959394a97d66b19f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityAssetBundleRequestOperation.cs

@@ -1,113 +0,0 @@
-using UnityEngine.Networking;
-using UnityEngine;
-
-namespace YooAsset
-{
-    internal class UnityAssetBundleRequestOperation : UnityWebRequestOperation
-    {
-        protected enum ESteps
-        {
-            None,
-            CreateRequest,
-            Download,
-            Done,
-        }
-
-        private UnityWebRequestAsyncOperation _requestOperation;
-        private DownloadHandlerAssetBundle _downloadhandler;
-        private readonly PackageBundle _packageBundle;
-        private readonly bool _disableUnityWebCache;
-        private ESteps _steps = ESteps.None;
-
-        /// <summary>
-        /// 请求结果
-        /// </summary>
-        public AssetBundle Result { private set; get; }
-
-        internal UnityAssetBundleRequestOperation(PackageBundle packageBundle, bool disableUnityWebCache, string url) : base(url)
-        {
-            _packageBundle = packageBundle;
-            _disableUnityWebCache = disableUnityWebCache;
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            if (_steps == ESteps.CreateRequest)
-            {
-                CreateWebRequest();
-                _steps = ESteps.Download;
-            }
-
-            if (_steps == ESteps.Download)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = _requestOperation.progress;
-                if (_requestOperation.isDone == false)
-                    return;
-
-                if (CheckRequestResult())
-                {
-                    AssetBundle assetBundle = _downloadhandler.assetBundle;
-                    if (assetBundle == null)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"URL : {_requestURL} Download handler asset bundle object is null !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Result = assetBundle;
-                        Status = EOperationStatus.Succeed;
-                    }
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                }
-
-                // 注意：最终释放请求器
-                DisposeRequest();
-            }
-        }
-
-        private void CreateWebRequest()
-        {
-            _downloadhandler = CreateWebDownloadHandler();
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            _webRequest.downloadHandler = _downloadhandler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _requestOperation = _webRequest.SendWebRequest();
-        }
-        private DownloadHandlerAssetBundle CreateWebDownloadHandler()
-        {
-            if (_disableUnityWebCache)
-            {
-                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, _packageBundle.UnityCRC);
-#if UNITY_2020_3_OR_NEWER
-                downloadhandler.autoLoadAssetBundle = false;
-#endif
-                return downloadhandler;
-            }
-            else
-            {
-                // 注意：优先从浏览器缓存里获取文件
-                // The file hash defining the version of the asset bundle.
-                Hash128 fileHash = Hash128.Parse(_packageBundle.FileHash);
-                var downloadhandler = new DownloadHandlerAssetBundle(_requestURL, fileHash, _packageBundle.UnityCRC);
-#if UNITY_2020_3_OR_NEWER
-                downloadhandler.autoLoadAssetBundle = false;
-#endif
-                return downloadhandler;
-            }
-        }
-    }
-}

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebCacheRequestOperation.cs

@@ -1,89 +0,0 @@
-using System.Collections;
-using System.Collections.Generic;
-using UnityEngine.Networking;
-using UnityEngine;
-
-namespace YooAsset
-{
-    internal class UnityWebCacheRequestOperation : UnityWebRequestOperation
-    {
-        protected enum ESteps
-        {
-            None,
-            CreateRequest,
-            Download,
-            Done,
-        }
-
-        private UnityWebRequestAsyncOperation _requestOperation;
-        private readonly Dictionary<string, string> _headers = new Dictionary<string, string>();
-        private ESteps _steps = ESteps.None;
-
-
-        internal UnityWebCacheRequestOperation(string url) : base(url)
-        {
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            if (_steps == ESteps.CreateRequest)
-            {
-                CreateWebRequest();
-                _steps = ESteps.Download;
-            }
-
-            if (_steps == ESteps.Download)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = _requestOperation.progress;
-                if (_requestOperation.isDone == false)
-                    return;
-
-                if (CheckRequestResult())
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                }
-
-                // 注意：最终释放请求器
-                DisposeRequest();
-            }
-        }
-
-        /// <summary>
-        /// 设置请求头信息
-        /// </summary>
-        public void SetRequestHeader(string name, string value)
-        {
-            _headers.Add(name, value);
-        }
-
-        private void CreateWebRequest()
-        {
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-
-            // 设置消息头
-            foreach (var keyValuePair in _headers)
-            {
-                string name = keyValuePair.Key;
-                string value = keyValuePair.Value;
-                _webRequest.SetRequestHeader(name, value);
-            }
-
-            _requestOperation = _webRequest.SendWebRequest();
-        }
-    }
-}

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebFileRequestOperation.cs

@@ -1,83 +0,0 @@
-using UnityEngine.Networking;
-using UnityEngine;
-
-namespace YooAsset
-{
-    internal class UnityWebFileRequestOperation : UnityWebRequestOperation
-    {
-        protected enum ESteps
-        {
-            None,
-            CreateRequest,
-            Download,
-            Done,
-        }
-
-        private UnityWebRequestAsyncOperation _requestOperation;
-        private readonly string _fileSavePath;
-        private ESteps _steps = ESteps.None;
-
-        /// <summary>
-        /// 响应的超时时间（单位：秒），在经过Timeout的秒数后尝试中止。
-        /// 注意：当Timeout设置为0时，不会应用超时。
-        /// 注意：设置的超时值可能应用于Android上的每个URL重定向，这可能会导致响应时间增加。
-        /// </summary>
-        private readonly int _timeout;
-
-
-        internal UnityWebFileRequestOperation(string url, string fileSavePath, int timeout) : base(url)
-        {
-            _fileSavePath = fileSavePath;
-            _timeout = timeout;
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.CreateRequest;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            if (_steps == ESteps.CreateRequest)
-            {
-                CreateWebRequest();
-                _steps = ESteps.Download;
-            }
-
-            if (_steps == ESteps.Download)
-            {
-                DownloadProgress = _webRequest.downloadProgress;
-                DownloadedBytes = (long)_webRequest.downloadedBytes;
-                Progress = _requestOperation.progress;
-                if (_requestOperation.isDone == false)
-                    return;
-
-                if (CheckRequestResult())
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                }
-
-                // 注意：最终释放请求器
-                DisposeRequest();
-            }
-        }
-
-        private void CreateWebRequest()
-        {
-            DownloadHandlerFile handler = new DownloadHandlerFile(_fileSavePath);
-            handler.removeFileOnAbort = true;
-            _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            _webRequest.timeout = _timeout;
-            _webRequest.downloadHandler = handler;
-            _webRequest.disposeDownloadHandlerOnDispose = true;
-            _requestOperation = _webRequest.SendWebRequest();
-        }
-    }
-}

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebFileRequestOperation.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 2ab5f2486d06e2642ba7aa9c9623430e
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebRequestOperation.cs

@@ -1,98 +0,0 @@
-using System;
-using UnityEngine.Networking;
-using UnityEngine;
-
-namespace YooAsset
-{
-    internal abstract class UnityWebRequestOperation : AsyncOperationBase
-    {
-        protected UnityWebRequest _webRequest;
-        protected readonly string _requestURL;
-        private bool _isAbort = false;
-
-        /// <summary>
-        /// HTTP返回码
-        /// </summary>
-        public long HttpCode { private set; get; }
-
-        /// <summary>
-        /// 当前下载的字节数
-        /// </summary>
-        public long DownloadedBytes { protected set; get; }
-
-        /// <summary>
-        /// 当前下载进度（0f - 1f）
-        /// </summary>
-        public float DownloadProgress { protected set; get; }
-
-        /// <summary>
-        /// 请求的URL地址
-        /// </summary>
-        public string URL
-        {
-            get { return _requestURL; }
-        }
-
-        internal UnityWebRequestOperation(string url)
-        {
-            _requestURL = url;
-        }
-        internal override void InternalAbort()
-        {
-            //TODO
-            // 1. 编辑器下停止运行游戏的时候主动终止下载任务
-            // 2. 真机上销毁包裹的时候主动终止下载任务
-            if (_isAbort == false)
-            {
-                if (_webRequest != null)
-                {
-                    _webRequest.Abort();
-                    _isAbort = true;
-                }
-            }
-        }
-
-        /// <summary>
-        /// 释放下载器
-        /// </summary>
-        protected void DisposeRequest()
-        {
-            if (_webRequest != null)
-            {
-                //注意：引擎底层会自动调用Abort方法
-                _webRequest.Dispose();
-                _webRequest = null;
-            }
-        }
-
-        /// <summary>
-        /// 检测请求结果
-        /// </summary>
-        protected bool CheckRequestResult()
-        {
-            HttpCode = _webRequest.responseCode;
-
-#if UNITY_2020_3_OR_NEWER
-            if (_webRequest.result != UnityWebRequest.Result.Success)
-            {
-                Error = $"URL : {_requestURL} Error : {_webRequest.error}";
-                return false;
-            }
-            else
-            {
-                return true;
-            }
-#else
-            if (_webRequest.isNetworkError || _webRequest.isHttpError)
-            {
-                Error = $"URL : {_requestURL} Error : {_webRequest.error}";
-                return false;
-            }
-            else
-            {
-                return true;
-            }
-#endif
-        }
-    }
-}

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebRequestOperation.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 4e5c3c1a1655a8b41b585c6811201583
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/YooAsset/Runtime/DownloadSystem/Operation/Internal/UnityWebTextRequestOperation.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: a488de5dcd6f4c448a47c4b574d5c9bc
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/CatalogTools.cs

@@ -63,14 +63,19 @@ namespace YooAsset
             {
                 "link.xml",
                 "buildlogtep.json",
-                $"{packageName}.version",
-                $"{packageName}_{packageVersion}.bytes",
-                $"{packageName}_{packageVersion}.hash",
-                $"{packageName}_{packageVersion}.json",
-                $"{packageName}_{packageVersion}.report",
                 DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName,
                 DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName
             };
+            string packageVersionFileName = YooAssetSettingsData.GetPackageVersionFileName(packageName);
+            string packageHashFileName = YooAssetSettingsData.GetPackageHashFileName(packageName, packageVersion);
+            string manifestBinaryFIleName = YooAssetSettingsData.GetManifestBinaryFileName(packageName, packageVersion);
+            string manifestJsonFIleName = YooAssetSettingsData.GetManifestJsonFileName(packageName, packageVersion);
+            string reportFileName = YooAssetSettingsData.GetBuildReportFileName(packageName, packageVersion);
+            whiteFileList.Add(packageVersionFileName);
+            whiteFileList.Add(packageHashFileName);
+            whiteFileList.Add(manifestBinaryFIleName);
+            whiteFileList.Add(manifestJsonFIleName);
+            whiteFileList.Add(reportFileName);
 
             // 记录所有内置资源文件
             DirectoryInfo rootDirectory = new DirectoryInfo(packageDirectory);
@@ -113,6 +118,34 @@ namespace YooAsset
             Debug.Log($"Succeed to save catalog file : {binaryFilePath}");
             return true;
         }
+
+        /// <summary>
+        /// 生成空的包裹内置资源目录文件
+        /// </summary>
+        public static bool CreateEmptyCatalogFile(string packageName, string packageVersion, string outputPath)
+        {
+            // 创建内置清单实例
+            var buildinFileCatalog = new DefaultBuildinFileCatalog();
+            buildinFileCatalog.FileVersion = CatalogDefine.FileVersion;
+            buildinFileCatalog.PackageName = packageName;
+            buildinFileCatalog.PackageVersion = packageVersion;
+
+            // 创建输出文件
+            string jsonFilePath = $"{outputPath}/{DefaultBuildinFileSystemDefine.BuildinCatalogJsonFileName}";
+            if (File.Exists(jsonFilePath))
+                File.Delete(jsonFilePath);
+            SerializeToJson(jsonFilePath, buildinFileCatalog);
+
+            // 创建输出文件
+            string binaryFilePath = $"{outputPath}/{DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName}";
+            if (File.Exists(binaryFilePath))
+                File.Delete(binaryFilePath);
+            SerializeToBinary(binaryFilePath, buildinFileCatalog);
+
+            UnityEditor.AssetDatabase.Refresh();
+            Debug.Log($"Succeed to save catalog file : {binaryFilePath}");
+            return true;
+        }
 #endif
 
         /// <summary>

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/DefaultBuildinFileSystem.cs

@@ -25,6 +25,11 @@ namespace YooAsset
         protected IFileSystem _unpackFileSystem;
         protected string _packageRoot;
 
+        /// <summary>
+        /// 下载后台接口
+        /// </summary>
+        public IDownloadBackend DownloadBackend { private set; get; }
+
         /// <summary>
         /// 包裹名称
         /// </summary>
@@ -53,15 +58,20 @@ namespace YooAsset
         }
 
         #region 自定义参数
+        /// <summary>
+        /// 自定义参数：覆盖安装缓存清理模式
+        /// </summary>
+        public EOverwriteInstallClearMode InstallClearMode { private set; get; } = EOverwriteInstallClearMode.ClearAllManifestFiles;
+
         /// <summary>
         /// 自定义参数：初始化的时候缓存文件校验级别
         /// </summary>
         public EFileVerifyLevel FileVerifyLevel { private set; get; } = EFileVerifyLevel.Middle;
 
         /// <summary>
-        /// 自定义参数：覆盖安装缓存清理模式
+        /// 自定义参数：初始化的时候缓存文件校验最大并发数
         /// </summary>
-        public EOverwriteInstallClearMode InstallClearMode { private set; get; } = EOverwriteInstallClearMode.ClearAllManifestFiles;
+        public int FileVerifyMaxConcurrency { private set; get; } = 32;
 
         /// <summary>
         /// 自定义参数：数据文件追加文件格式
@@ -85,7 +95,12 @@ namespace YooAsset
         public string CopyBuildinPackageManifestDestRoot { private set; get; }
 
         /// <summary>
-        ///  自定义参数：解密方法类
+        /// 自定义参数：解压文件系统的根目录
+        /// </summary>
+        public string UnpackFileSystemRoot { private set; get; }
+
+        /// <summary>
+        ///  自定义参数：解密服务接口的实例类
         /// </summary>
         public IDecryptionServices DecryptionServices { private set; get; }
 
@@ -95,7 +110,7 @@ namespace YooAsset
         public IManifestRestoreServices ManifestServices { private set; get; }
 
         /// <summary>
-        /// 自定义参数：拷贝内置文件服务类
+        /// 自定义参数：拷贝内置文件接口的实例类
         /// </summary>
         public ICopyLocalFileServices CopyLocalFileServices { private set; get; }
         #endregion
@@ -146,6 +161,13 @@ namespace YooAsset
                 var operation = new DBFSLoadRawBundleOperation(this, bundle);
                 return operation;
             }
+#if TUANJIE_1_7_OR_NEWER
+            else if (bundle.BundleType == (int)EBuildBundleType.InstantBundle)
+            {
+                var operation = new DBFSLoadInstantBundleOperation(this, bundle);
+                return operation;
+            }
+#endif
             else
             {
                 string error = $"{nameof(DefaultBuildinFileSystem)} not support load bundle type : {bundle.BundleType}";
@@ -156,13 +178,18 @@ namespace YooAsset
 
         public virtual void SetParameter(string name, object value)
         {
-            if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
+            if (name == FileSystemParametersDefine.INSTALL_CLEAR_MODE)
+            {
+                InstallClearMode = (EOverwriteInstallClearMode)value;
+            }
+            else if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == FileSystemParametersDefine.INSTALL_CLEAR_MODE)
+            else if (name == FileSystemParametersDefine.FILE_VERIFY_MAX_CONCURRENCY)
             {
-                InstallClearMode = (EOverwriteInstallClearMode)value;
+                int convertValue = Convert.ToInt32(value);
+                FileVerifyMaxConcurrency = Mathf.Clamp(convertValue, 1, int.MaxValue);
             }
             else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
             {
@@ -180,6 +207,10 @@ namespace YooAsset
             {
                 CopyBuildinPackageManifestDestRoot = (string)value;
             }
+            else if (name == FileSystemParametersDefine.UNPACK_FILE_SYSTEM_ROOT)
+            {
+                UnpackFileSystemRoot = (string)value;
+            }
             else if (name == FileSystemParametersDefine.DECRYPTION_SERVICES)
             {
                 DecryptionServices = (IDecryptionServices)value;
@@ -206,16 +237,21 @@ namespace YooAsset
             else
                 _packageRoot = packageRoot;
 
+            // 创建默认的下载后台接口
+            if (DownloadBackend == null)
+                DownloadBackend = new UnityWebRequestBackend(DownloadSystemHelper.UnityWebRequestCreater);
+
             // 创建解压文件系统
             var remoteServices = new DefaultUnpackRemoteServices(_packageRoot);
             _unpackFileSystem = new DefaultUnpackFileSystem();
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.REMOTE_SERVICES, remoteServices);
-            _unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, FileVerifyLevel);
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.INSTALL_CLEAR_MODE, InstallClearMode);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_LEVEL, FileVerifyLevel);
+            _unpackFileSystem.SetParameter(FileSystemParametersDefine.FILE_VERIFY_MAX_CONCURRENCY, FileVerifyMaxConcurrency);
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.APPEND_FILE_EXTENSION, AppendFileExtension);
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.DECRYPTION_SERVICES, DecryptionServices);
             _unpackFileSystem.SetParameter(FileSystemParametersDefine.COPY_LOCAL_FILE_SERVICES, CopyLocalFileServices);
-            _unpackFileSystem.OnCreate(packageName, null);
+            _unpackFileSystem.OnCreate(packageName, UnpackFileSystemRoot);
         }
         public virtual void OnDestroy()
         {
@@ -335,6 +371,27 @@ namespace YooAsset
 #endif
         }
 
+        /// <summary>
+        /// 是否属于解压资源包文件
+        /// </summary>
+        protected virtual bool IsUnpackBundleFile(PackageBundle bundle)
+        {
+            if (Belong(bundle) == false)
+                return false;
+
+#if UNITY_ANDROID || UNITY_OPENHARMONY
+            if (bundle.Encrypted)
+                return true;
+
+            if (bundle.BundleType == (int)EBuildBundleType.RawBundle)
+                return true;
+
+            return false;
+#else
+            return false;
+#endif
+        }
+
         #region 内部方法
         protected string GetDefaultBuildinPackageRoot(string packageName)
         {
@@ -370,27 +427,6 @@ namespace YooAsset
             return PathUtility.Combine(_packageRoot, DefaultBuildinFileSystemDefine.BuildinCatalogBinaryFileName);
         }
 
-        /// <summary>
-        /// 是否属于解压资源包文件
-        /// </summary>
-        protected bool IsUnpackBundleFile(PackageBundle bundle)
-        {
-            if (Belong(bundle) == false)
-                return false;
-
-#if UNITY_ANDROID
-            if (bundle.Encrypted)
-                return true;
-
-            if (bundle.BundleType == (int)EBuildBundleType.RawBundle)
-                return true;
-
-            return false;
-#else
-            return false;
-#endif
-        }
-
         /// <summary>
         /// 记录文件信息
         /// </summary>

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/DBFSInitializeOperation.cs

@@ -8,14 +8,18 @@ namespace YooAsset
         private enum ESteps
         {
             None,
-            CopyBuildinManifest,
+            LoadBuildinPackageVersion,
+            CopyBuildinPackageHash,
+            CopyBuildinPackageManifest,
             InitUnpackFileSystem,
             LoadCatalogFile,
             Done,
         }
 
         private readonly DefaultBuildinFileSystem _fileSystem;
-        private CopyBuildinPackageManifestOperation _copyBuildinPackageManifestOp;
+        private RequestBuildinPackageVersionOperation _requestBuildinPackageVersionOp;
+        private CopyBuildinFileOperation _copyBuildinHashFileOp;
+        private CopyBuildinFileOperation _copyBuildinManifestFileOp;
         private FSInitializeFileSystemOperation _initUnpackFIleSystemOp;
         private LoadBuildinCatalogFileOperation _loadBuildinCatalogFileOp;
         private ESteps _steps = ESteps.None;
@@ -32,7 +36,7 @@ namespace YooAsset
             Error = $"{nameof(DefaultBuildinFileSystem)} is not support WEBGL platform !";
 #else
             if (_fileSystem.CopyBuildinPackageManifest)
-                _steps = ESteps.CopyBuildinManifest;
+                _steps = ESteps.LoadBuildinPackageVersion;
             else
                 _steps = ESteps.InitUnpackFileSystem;
 #endif
@@ -42,20 +46,76 @@ namespace YooAsset
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            if (_steps == ESteps.CopyBuildinManifest)
+            if (_steps == ESteps.LoadBuildinPackageVersion)
             {
-                if (_copyBuildinPackageManifestOp == null)
+                if (_requestBuildinPackageVersionOp == null)
                 {
-                    _copyBuildinPackageManifestOp = new CopyBuildinPackageManifestOperation(_fileSystem);
-                    _copyBuildinPackageManifestOp.StartOperation();
-                    AddChildOperation(_copyBuildinPackageManifestOp);
+                    _requestBuildinPackageVersionOp = new RequestBuildinPackageVersionOperation(_fileSystem);
+                    _requestBuildinPackageVersionOp.StartOperation();
+                    AddChildOperation(_requestBuildinPackageVersionOp);
                 }
 
-                _copyBuildinPackageManifestOp.UpdateOperation();
-                if (_copyBuildinPackageManifestOp.IsDone == false)
+                _requestBuildinPackageVersionOp.UpdateOperation();
+                if (_requestBuildinPackageVersionOp.IsDone == false)
                     return;
 
-                if (_copyBuildinPackageManifestOp.Status == EOperationStatus.Succeed)
+                if (_requestBuildinPackageVersionOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.CopyBuildinPackageHash;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _requestBuildinPackageVersionOp.Error;
+                }
+            }
+
+            if (_steps == ESteps.CopyBuildinPackageHash)
+            {
+                if (_copyBuildinHashFileOp == null)
+                {
+                    string packageVersion = _requestBuildinPackageVersionOp.PackageVersion;
+                    string destFilePath = GetCopyPackageHashDestPath(packageVersion);
+                    string sourceFilePath = _fileSystem.GetBuildinPackageHashFilePath(packageVersion);
+                    _copyBuildinHashFileOp = new CopyBuildinFileOperation(_fileSystem, sourceFilePath, destFilePath);
+                    _copyBuildinHashFileOp.StartOperation();
+                    AddChildOperation(_copyBuildinHashFileOp);
+                }
+
+                _copyBuildinHashFileOp.UpdateOperation();
+                if (_copyBuildinHashFileOp.IsDone == false)
+                    return;
+
+                if (_copyBuildinHashFileOp.Status == EOperationStatus.Succeed)
+                {
+                    _steps = ESteps.CopyBuildinPackageManifest;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _copyBuildinHashFileOp.Error;
+                }
+            }
+
+            if (_steps == ESteps.CopyBuildinPackageManifest)
+            {
+                if (_copyBuildinManifestFileOp == null)
+                {
+                    string packageVersion = _requestBuildinPackageVersionOp.PackageVersion;
+                    string destFilePath = GetCopyPackageManifestDestPath(packageVersion);
+                    string sourceFilePath = _fileSystem.GetBuildinPackageManifestFilePath(packageVersion);
+                    _copyBuildinManifestFileOp = new CopyBuildinFileOperation(_fileSystem, sourceFilePath, destFilePath);
+                    _copyBuildinManifestFileOp.StartOperation();
+                    AddChildOperation(_copyBuildinManifestFileOp);
+                }
+
+                _copyBuildinManifestFileOp.UpdateOperation();
+                if (_copyBuildinManifestFileOp.IsDone == false)
+                    return;
+
+                if (_copyBuildinManifestFileOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.InitUnpackFileSystem;
                 }
@@ -63,7 +123,7 @@ namespace YooAsset
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _copyBuildinPackageManifestOp.Error;
+                    Error = _copyBuildinManifestFileOp.Error;
                 }
             }
 
@@ -116,6 +176,30 @@ namespace YooAsset
 
                 if (_loadBuildinCatalogFileOp.Status == EOperationStatus.Succeed)
                 {
+                    var catalog = _loadBuildinCatalogFileOp.Catalog;
+                    if (catalog == null)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = "Fatal error : catalog is null !";
+                        return;
+                    }
+
+                    if (catalog.PackageName != _fileSystem.PackageName)
+                    {
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Failed;
+                        Error = $"Catalog file package name {catalog.PackageName} cannot match the file system package name {_fileSystem.PackageName}";
+                        return;
+                    }
+
+                    foreach (var wrapper in catalog.Wrappers)
+                    {
+                        var fileWrapper = new DefaultBuildinFileSystem.FileWrapper(wrapper.FileName);
+                        _fileSystem.RecordCatalogFile(wrapper.BundleGUID, fileWrapper);
+                    }
+
+                    YooLogger.Log($"Package '{_fileSystem.PackageName}' buildin catalog files count : {catalog.Wrappers.Count}");
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
                 }
@@ -127,5 +211,28 @@ namespace YooAsset
                 }
             }
         }
+
+        private string GetCopyManifestFileRoot()
+        {
+            string destRoot = _fileSystem.CopyBuildinPackageManifestDestRoot;
+            if (string.IsNullOrEmpty(destRoot))
+            {
+                string defaultCacheRoot = YooAssetSettingsData.GetYooDefaultCacheRoot();
+                destRoot = PathUtility.Combine(defaultCacheRoot, _fileSystem.PackageName, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
+            }
+            return destRoot;
+        }
+        private string GetCopyPackageHashDestPath(string packageVersion)
+        {
+            string fileRoot = GetCopyManifestFileRoot();
+            string fileName = YooAssetSettingsData.GetPackageHashFileName(_fileSystem.PackageName, packageVersion);
+            return PathUtility.Combine(fileRoot, fileName);
+        }
+        private string GetCopyPackageManifestDestPath(string packageVersion)
+        {
+            string fileRoot = GetCopyManifestFileRoot();
+            string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_fileSystem.PackageName, packageVersion);
+            return PathUtility.Combine(fileRoot, fileName);
+        }
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/CopyBuildinFileOperation.cs

@@ -0,0 +1,103 @@
+using System;
+using System.IO;
+
+namespace YooAsset
+{
+    internal class CopyBuildinFileOperation : AsyncOperationBase
+    {
+        private enum ESteps
+        {
+            None,
+            CheckFileExist,
+            TryCopyFile,
+            UnpackFile,
+            Done,
+        }
+
+        private readonly DefaultBuildinFileSystem _fileSystem;
+        private readonly string _sourceFilePath;
+        private readonly string _destFilePath;
+        private IDownloadFileRequest _webFileRequestOp;
+        private ESteps _steps = ESteps.None;
+
+        public CopyBuildinFileOperation(DefaultBuildinFileSystem fileSystem, string sourceFilePath, string destFilePath)
+        {
+            _fileSystem = fileSystem;
+            _sourceFilePath = sourceFilePath;
+            _destFilePath = destFilePath;
+        }
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CheckFileExist;
+        }
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CheckFileExist)
+            {
+                if (File.Exists(_destFilePath))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.TryCopyFile;
+                }
+            }
+
+            if (_steps == ESteps.TryCopyFile)
+            {
+                if (File.Exists(_sourceFilePath))
+                {
+                    try
+                    {
+                        var directory = Path.GetDirectoryName(_destFilePath);
+                        if (Directory.Exists(directory) == false)
+                            Directory.CreateDirectory(directory);
+                        File.Copy(_sourceFilePath, _destFilePath, true);
+                        _steps = ESteps.Done;
+                        Status = EOperationStatus.Succeed;
+                    }
+                    catch (Exception ex)
+                    {
+                        YooLogger.Warning($"Failed copy buildin file : {ex.Message}");
+                        _steps = ESteps.UnpackFile;
+                    }
+                }
+                else
+                {
+                    _steps = ESteps.UnpackFile;
+                }
+            }
+
+            if (_steps == ESteps.UnpackFile)
+            {
+                if (_webFileRequestOp == null)
+                {
+                    string url = DownloadSystemHelper.ConvertToWWWPath(_sourceFilePath);
+                    var args = new DownloadFileRequestArgs(url, _destFilePath, 60, 0);
+                    _webFileRequestOp = _fileSystem.DownloadBackend.CreateFileRequest(args);
+                    _webFileRequestOp.SendRequest();
+                }
+
+                if (_webFileRequestOp.IsDone == false)
+                    return;
+
+                if (_webFileRequestOp.Status == EDownloadRequestStatus.Succeed)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = _webFileRequestOp.Error;
+                }
+            }
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/CopyBuildinFileOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: bf44368bc5c2bf1479c36d82e931c295
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/CopyBuildinPackageManifestOperation.cs

@@ -1,173 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.IO;
-
-namespace YooAsset
-{
-    internal class CopyBuildinPackageManifestOperation : AsyncOperationBase
-    {
-        private enum ESteps
-        {
-            None,
-            RequestPackageVersion,
-            CheckHashFile,
-            UnpackHashFile,
-            CheckManifestFile,
-            UnpackManifestFile,
-            Done,
-        }
-
-        private readonly DefaultBuildinFileSystem _fileSystem;
-        private RequestBuildinPackageVersionOperation _requestBuildinPackageVersionOp;
-        private UnityWebFileRequestOperation _hashWebFileRequestOp;
-        private UnityWebFileRequestOperation _manifestWebFileRequestOp;
-        private string _buildinPackageVersion;
-        private ESteps _steps = ESteps.None;
-
-        public CopyBuildinPackageManifestOperation(DefaultBuildinFileSystem fileSystem)
-        {
-            _fileSystem = fileSystem;
-        }
-        internal override void InternalStart()
-        {
-            _steps = ESteps.RequestPackageVersion;
-        }
-        internal override void InternalUpdate()
-        {
-            if (_steps == ESteps.None || _steps == ESteps.Done)
-                return;
-
-            if (_steps == ESteps.RequestPackageVersion)
-            {
-                if (_requestBuildinPackageVersionOp == null)
-                {
-                    _requestBuildinPackageVersionOp = new RequestBuildinPackageVersionOperation(_fileSystem);
-                    _requestBuildinPackageVersionOp.StartOperation();
-                    AddChildOperation(_requestBuildinPackageVersionOp);
-                }
-
-                _requestBuildinPackageVersionOp.UpdateOperation();
-                if (_requestBuildinPackageVersionOp.IsDone == false)
-                    return;
-
-                if (_requestBuildinPackageVersionOp.Status == EOperationStatus.Succeed)
-                {
-                    _steps = ESteps.CheckHashFile;
-                    _buildinPackageVersion = _requestBuildinPackageVersionOp.PackageVersion;
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = _requestBuildinPackageVersionOp.Error;
-                }
-            }
-
-            if (_steps == ESteps.CheckHashFile)
-            {
-                string hashFilePath = GetCopyPackageHashDestPath(_buildinPackageVersion);
-                if (File.Exists(hashFilePath))
-                {
-                    _steps = ESteps.CheckManifestFile;
-                    return;
-                }
-
-                _steps = ESteps.UnpackHashFile;
-            }
-
-            if (_steps == ESteps.UnpackHashFile)
-            {
-                if (_hashWebFileRequestOp == null)
-                {
-                    string sourcePath = _fileSystem.GetBuildinPackageHashFilePath(_buildinPackageVersion);
-                    string destPath = GetCopyPackageHashDestPath(_buildinPackageVersion);
-                    string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
-                    _hashWebFileRequestOp = new UnityWebFileRequestOperation(url, destPath, 60);
-                    _hashWebFileRequestOp.StartOperation();
-                    AddChildOperation(_hashWebFileRequestOp);
-                }
-
-                _hashWebFileRequestOp.UpdateOperation();
-                if (_hashWebFileRequestOp.IsDone == false)
-                    return;
-
-                if (_hashWebFileRequestOp.Status == EOperationStatus.Succeed)
-                {
-                    _steps = ESteps.CheckManifestFile;
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = _hashWebFileRequestOp.Error;
-                }
-            }
-
-            if (_steps == ESteps.CheckManifestFile)
-            {
-                string manifestFilePath = GetCopyPackageManifestDestPath(_buildinPackageVersion);
-                if (File.Exists(manifestFilePath))
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                    return;
-                }
-
-                _steps = ESteps.UnpackManifestFile;
-            }
-
-            if (_steps == ESteps.UnpackManifestFile)
-            {
-                if (_manifestWebFileRequestOp == null)
-                {
-                    string sourcePath = _fileSystem.GetBuildinPackageManifestFilePath(_buildinPackageVersion);
-                    string destPath = GetCopyPackageManifestDestPath(_buildinPackageVersion);
-                    string url = DownloadSystemHelper.ConvertToWWWPath(sourcePath);
-                    _manifestWebFileRequestOp = new UnityWebFileRequestOperation(url, destPath, 60);
-                    _manifestWebFileRequestOp.StartOperation();
-                    AddChildOperation(_manifestWebFileRequestOp);
-                }
-
-                _manifestWebFileRequestOp.UpdateOperation();
-                if (_manifestWebFileRequestOp.IsDone == false)
-                    return;
-
-                if (_manifestWebFileRequestOp.Status == EOperationStatus.Succeed)
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Succeed;
-                }
-                else
-                {
-                    _steps = ESteps.Done;
-                    Status = EOperationStatus.Failed;
-                    Error = _manifestWebFileRequestOp.Error;
-                }
-            }
-        }
-
-        private string GetCopyManifestFileRoot()
-        {
-            string destRoot = _fileSystem.CopyBuildinPackageManifestDestRoot;
-            if (string.IsNullOrEmpty(destRoot))
-            {
-                string defaultCacheRoot = YooAssetSettingsData.GetYooDefaultCacheRoot();
-                destRoot = PathUtility.Combine(defaultCacheRoot, _fileSystem.PackageName, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
-            }
-            return destRoot;
-        }
-        private string GetCopyPackageHashDestPath(string packageVersion)
-        {
-            string fileRoot = GetCopyManifestFileRoot();
-            string fileName = YooAssetSettingsData.GetPackageHashFileName(_fileSystem.PackageName, packageVersion);
-            return PathUtility.Combine(fileRoot, fileName);
-        }
-        private string GetCopyPackageManifestDestPath(string packageVersion)
-        {
-            string fileRoot = GetCopyManifestFileRoot();
-            string fileName = YooAssetSettingsData.GetManifestBinaryFileName(_fileSystem.PackageName, packageVersion);
-            return PathUtility.Combine(fileRoot, fileName);
-        }
-    }
-}

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/CopyBuildinPackageManifestOperation.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 69f62f6b4185d06498f96aa272e9b926
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/LoadBuildinCatalogFileOperation.cs

@@ -1,4 +1,5 @@
 using System;
+using System.IO;
 
 namespace YooAsset
 {
@@ -7,45 +8,66 @@ namespace YooAsset
         private enum ESteps
         {
             None,
-            RequestData,
+            TryLoadFileData,
+            RequestFileData,
             LoadCatalog,
             Done,
         }
 
         private readonly DefaultBuildinFileSystem _fileSystem;
-        private UnityWebDataRequestOperation _webDataRequestOp;
+        private IDownloadBytesRequest _webDataRequestOp;
+        private byte[] _fileData;
         private ESteps _steps = ESteps.None;
 
+        /// <summary>
+        /// 内置资源目录
+        /// </summary>
+        public DefaultBuildinFileCatalog Catalog;
+
         internal LoadBuildinCatalogFileOperation(DefaultBuildinFileSystem fileSystem)
         {
             _fileSystem = fileSystem;
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.RequestData;
+            _steps = ESteps.TryLoadFileData;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
-            if (_steps == ESteps.RequestData)
+            if (_steps == ESteps.TryLoadFileData)
+            {
+                string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
+                if (File.Exists(filePath))
+                {
+                    _fileData = File.ReadAllBytes(filePath);
+                    _steps = ESteps.LoadCatalog;
+                }
+                else
+                {
+                    _steps = ESteps.RequestFileData;
+                }
+            }
+
+            if (_steps == ESteps.RequestFileData)
             {
                 if (_webDataRequestOp == null)
                 {
                     string filePath = _fileSystem.GetCatalogBinaryFileLoadPath();
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url, 60);
-                    _webDataRequestOp.StartOperation();
-                    AddChildOperation(_webDataRequestOp);
+                    var args = new DownloadDataRequestArgs(url, 60, 0);
+                    _webDataRequestOp = _fileSystem.DownloadBackend.CreateBytesRequest(args);
+                    _webDataRequestOp.SendRequest();
                 }
 
-                _webDataRequestOp.UpdateOperation();
                 if (_webDataRequestOp.IsDone == false)
                     return;
 
-                if (_webDataRequestOp.Status == EOperationStatus.Succeed)
+                if (_webDataRequestOp.Status == EDownloadRequestStatus.Succeed)
                 {
+                    _fileData = _webDataRequestOp.Result;
                     _steps = ESteps.LoadCatalog;
                 }
                 else
@@ -60,30 +82,15 @@ namespace YooAsset
             {
                 try
                 {
-                    var catalog = CatalogTools.DeserializeFromBinary(_webDataRequestOp.Result);
-                    if (catalog.PackageName != _fileSystem.PackageName)
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"Catalog file package name {catalog.PackageName} cannot match the file system package name {_fileSystem.PackageName}";
-                        return;
-                    }
-
-                    foreach (var wrapper in catalog.Wrappers)
-                    {
-                        var fileWrapper = new DefaultBuildinFileSystem.FileWrapper(wrapper.FileName);
-                        _fileSystem.RecordCatalogFile(wrapper.BundleGUID, fileWrapper);
-                    }
-
-                    YooLogger.Log($"Package '{_fileSystem.PackageName}' buildin catalog files count : {catalog.Wrappers.Count}");
+                    Catalog = CatalogTools.DeserializeFromBinary(_fileData);
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Succeed;
                 }
-                catch (Exception e)
+                catch (Exception ex)
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = $"Failed to load catalog file : {e.Message}";
+                    Error = $"Failed to load catalog file : {ex.Message}";
                 }
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/LoadBuildinPackageManifestOperation.cs

@@ -1,4 +1,5 @@
-
+using System.IO;
+
 namespace YooAsset
 {
     internal class LoadBuildinPackageManifestOperation : AsyncOperationBase
@@ -6,6 +7,7 @@ namespace YooAsset
         private enum ESteps
         {
             None,
+            TryLoadFileData,
             RequestFileData,
             VerifyFileData,
             LoadManifest,
@@ -15,8 +17,9 @@ namespace YooAsset
         private readonly DefaultBuildinFileSystem _fileSystem;
         private readonly string _packageVersion;
         private readonly string _packageHash;
-        private UnityWebDataRequestOperation _webDataRequestOp;
+        private IDownloadBytesRequest _webDataRequestOp;
         private DeserializeManifestOperation _deserializer;
+        private byte[] _fileData;
         private ESteps _steps = ESteps.None;
 
         /// <summary>
@@ -33,30 +36,44 @@ namespace YooAsset
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.RequestFileData;
+            _steps = ESteps.TryLoadFileData;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
+            if (_steps == ESteps.TryLoadFileData)
+            {
+                string filePath = _fileSystem.GetBuildinPackageManifestFilePath(_packageVersion);
+                if (File.Exists(filePath))
+                {
+                    _fileData = File.ReadAllBytes(filePath);
+                    _steps = ESteps.VerifyFileData;
+                }
+                else
+                {
+                    _steps = ESteps.RequestFileData;
+                }
+            }
+
             if (_steps == ESteps.RequestFileData)
             {
                 if (_webDataRequestOp == null)
                 {
                     string filePath = _fileSystem.GetBuildinPackageManifestFilePath(_packageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webDataRequestOp = new UnityWebDataRequestOperation(url, 60);
-                    _webDataRequestOp.StartOperation();
-                    AddChildOperation(_webDataRequestOp);
+                    var args = new DownloadDataRequestArgs(url, 60, 0);
+                    _webDataRequestOp = _fileSystem.DownloadBackend.CreateBytesRequest(args);
+                    _webDataRequestOp.SendRequest();
                 }
 
-                _webDataRequestOp.UpdateOperation();
                 if (_webDataRequestOp.IsDone == false)
                     return;
 
-                if (_webDataRequestOp.Status == EOperationStatus.Succeed)
+                if (_webDataRequestOp.Status == EDownloadRequestStatus.Succeed)
                 {
+                    _fileData = _webDataRequestOp.Result;
                     _steps = ESteps.VerifyFileData;
                 }
                 else
@@ -69,7 +86,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                if (ManifestTools.VerifyManifestData(_webDataRequestOp.Result, _packageHash))
+                if (ManifestTools.VerifyManifestData(_fileData, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }
@@ -85,7 +102,7 @@ namespace YooAsset
             {
                 if (_deserializer == null)
                 {
-                    _deserializer = new DeserializeManifestOperation(_fileSystem.ManifestServices, _webDataRequestOp.Result);
+                    _deserializer = new DeserializeManifestOperation(_fileSystem.ManifestServices, _fileData);
                     _deserializer.StartOperation();
                     AddChildOperation(_deserializer);
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/RequestBuildinPackageHashOperation.cs

@@ -1,4 +1,5 @@
-
+using System.IO;
+
 namespace YooAsset
 {
     internal class RequestBuildinPackageHashOperation : AsyncOperationBase
@@ -6,13 +7,15 @@ namespace YooAsset
         private enum ESteps
         {
             None,
+            TryLoadPackageHash,
             RequestPackageHash,
+            CheckResult,
             Done,
         }
 
         private readonly DefaultBuildinFileSystem _fileSystem;
         private readonly string _packageVersion;
-        private UnityWebTextRequestOperation _webTextRequestOp;
+        private IDownloadTextRequest _webTextRequestOp;
         private ESteps _steps = ESteps.None;
 
         /// <summary>
@@ -28,42 +31,45 @@ namespace YooAsset
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.RequestPackageHash;
+            _steps = ESteps.TryLoadPackageHash;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
+            if (_steps == ESteps.TryLoadPackageHash)
+            {
+                string filePath = _fileSystem.GetBuildinPackageHashFilePath(_packageVersion);
+                if (File.Exists(filePath))
+                {
+                    PackageHash = File.ReadAllText(filePath);
+                    _steps = ESteps.CheckResult;
+                }
+                else
+                {
+                    _steps = ESteps.RequestPackageHash;
+                }
+            }
+
             if (_steps == ESteps.RequestPackageHash)
             {
                 if (_webTextRequestOp == null)
                 {
                     string filePath = _fileSystem.GetBuildinPackageHashFilePath(_packageVersion);
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webTextRequestOp = new UnityWebTextRequestOperation(url, 60);
-                    _webTextRequestOp.StartOperation();
-                    AddChildOperation(_webTextRequestOp);
+                    var args = new DownloadDataRequestArgs(url, 60, 0);
+                    _webTextRequestOp = _fileSystem.DownloadBackend.CreateTextRequest(args);
+                    _webTextRequestOp.SendRequest();
                 }
 
-                _webTextRequestOp.UpdateOperation();
                 if (_webTextRequestOp.IsDone == false)
                     return;
 
-                if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+                if (_webTextRequestOp.Status == EDownloadRequestStatus.Succeed)
                 {
                     PackageHash = _webTextRequestOp.Result;
-                    if (string.IsNullOrEmpty(PackageHash))
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"Buildin package hash file content is empty !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Succeed;
-                    }
+                    _steps = ESteps.CheckResult;
                 }
                 else
                 {
@@ -72,6 +78,21 @@ namespace YooAsset
                     Error = _webTextRequestOp.Error;
                 }
             }
+
+            if (_steps == ESteps.CheckResult)
+            {
+                if (string.IsNullOrEmpty(PackageHash))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Buildin package hash file content is empty !";
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+            }
         }
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/RequestBuildinPackageVersionOperation.cs

@@ -1,4 +1,5 @@
-
+using System.IO;
+
 namespace YooAsset
 {
     internal class RequestBuildinPackageVersionOperation : AsyncOperationBase
@@ -6,12 +7,14 @@ namespace YooAsset
         private enum ESteps
         {
             None,
+            TryLoadPackageVersion,
             RequestPackageVersion,
+            CheckResult,
             Done,
         }
 
         private readonly DefaultBuildinFileSystem _fileSystem;
-        private UnityWebTextRequestOperation _webTextRequestOp;
+        private IDownloadTextRequest _webTextRequestOp;
         private ESteps _steps = ESteps.None;
 
         /// <summary>
@@ -26,42 +29,45 @@ namespace YooAsset
         }
         internal override void InternalStart()
         {
-            _steps = ESteps.RequestPackageVersion;
+            _steps = ESteps.TryLoadPackageVersion;
         }
         internal override void InternalUpdate()
         {
             if (_steps == ESteps.None || _steps == ESteps.Done)
                 return;
 
+            if (_steps == ESteps.TryLoadPackageVersion)
+            {
+                string filePath = _fileSystem.GetBuildinPackageVersionFilePath();
+                if (File.Exists(filePath))
+                {
+                    PackageVersion = File.ReadAllText(filePath);
+                    _steps = ESteps.CheckResult;
+                }
+                else
+                {
+                    _steps = ESteps.RequestPackageVersion;
+                }
+            }
+
             if (_steps == ESteps.RequestPackageVersion)
             {
                 if (_webTextRequestOp == null)
                 {
                     string filePath = _fileSystem.GetBuildinPackageVersionFilePath();
                     string url = DownloadSystemHelper.ConvertToWWWPath(filePath);
-                    _webTextRequestOp = new UnityWebTextRequestOperation(url, 60);
-                    _webTextRequestOp.StartOperation();
-                    AddChildOperation(_webTextRequestOp);
+                    var args = new DownloadDataRequestArgs(url, 60, 0);
+                    _webTextRequestOp = _fileSystem.DownloadBackend.CreateTextRequest(args);
+                    _webTextRequestOp.SendRequest();
                 }
 
-                _webTextRequestOp.UpdateOperation();
                 if (_webTextRequestOp.IsDone == false)
                     return;
 
-                if (_webTextRequestOp.Status == EOperationStatus.Succeed)
+                if (_webTextRequestOp.Status == EDownloadRequestStatus.Succeed)
                 {
                     PackageVersion = _webTextRequestOp.Result;
-                    if (string.IsNullOrEmpty(PackageVersion))
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Failed;
-                        Error = $"Buildin package version file content is empty !";
-                    }
-                    else
-                    {
-                        _steps = ESteps.Done;
-                        Status = EOperationStatus.Succeed;
-                    }
+                    _steps = ESteps.CheckResult;
                 }
                 else
                 {
@@ -70,6 +76,21 @@ namespace YooAsset
                     Error = _webTextRequestOp.Error;
                 }
             }
+
+            if (_steps == ESteps.CheckResult)
+            {
+                if (string.IsNullOrEmpty(PackageVersion))
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Buildin package version file content is empty !";
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+            }
         }
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/DefaultCacheFileSystem.cs

@@ -2,6 +2,7 @@
 using System.IO;
 using System.Collections.Generic;
 using System.Linq;
+using UnityEngine;
 
 namespace YooAsset
 {
@@ -22,10 +23,14 @@ namespace YooAsset
         protected string _cacheManifestFilesRoot;
 
         /// <summary>
-        /// 下载中心
-        /// 说明：当异步操作任务终止的时候，所有下载子任务都会一同被终止！
+        /// 下载调度器
         /// </summary>
-        public DownloadCenterOperation DownloadCenter { set; get; }
+        public DownloadSchedulerOperation DownloadScheduler { set; get; }
+
+        /// <summary>
+        /// 下载后台接口
+        /// </summary>
+        public IDownloadBackend DownloadBackend { private set; get; }
 
         /// <summary>
         /// 包裹名称
@@ -56,19 +61,26 @@ namespace YooAsset
 
         #region 自定义参数
         /// <summary>
-        /// 自定义参数：远程服务接口
+        /// 自定义参数：远程服务接口的实例类
         /// </summary>
         public IRemoteServices RemoteServices { private set; get; }
 
+        /// <summary>
+        /// 自定义参数：覆盖安装缓存清理模式
+        /// </summary>
+        public EOverwriteInstallClearMode InstallClearMode { private set; get; } = EOverwriteInstallClearMode.ClearAllManifestFiles;
+
         /// <summary>
         /// 自定义参数：初始化的时候缓存文件校验级别
         /// </summary>
         public EFileVerifyLevel FileVerifyLevel { private set; get; } = EFileVerifyLevel.Middle;
 
         /// <summary>
-        /// 自定义参数：覆盖安装缓存清理模式
+        /// 自定义参数：初始化的时候缓存文件校验最大并发数
+        /// 默认值：32（推荐范围 1-128）
+        /// 说明：过大的值可能导致线程池任务过多，影响系统稳定性 
         /// </summary>
-        public EOverwriteInstallClearMode InstallClearMode { private set; get; } = EOverwriteInstallClearMode.ClearAllManifestFiles;
+        public int FileVerifyMaxConcurrency { private set; get; } = 32;
 
         /// <summary>
         /// 自定义参数：数据文件追加文件格式
@@ -82,13 +94,22 @@ namespace YooAsset
 
         /// <summary>
         /// 自定义参数：最大并发连接数
+        /// 默认值：10（推荐范围 1-32）
+        /// 说明：过大的并发数可能被服务器限流，也会增加本地资源消耗 
         /// </summary>
-        public int DownloadMaxConcurrency { private set; get; } = int.MaxValue;
+        public int DownloadMaxConcurrency { private set; get; } = 10;
 
         /// <summary>
         /// 自定义参数：每帧发起的最大请求数
+        /// 默认值：5（推荐范围 1-10） 
+        /// 说明：避免单帧发起过多请求导致卡顿 
         /// </summary>
-        public int DownloadMaxRequestPerFrame { private set; get; } = int.MaxValue;
+        public int DownloadMaxRequestPerFrame { private set; get; } = 5;
+
+        /// <summary>
+        /// 自定义参数：下载任务的看门狗机制监控时间
+        /// </summary>
+        public int DownloadWatchDogTime { private set; get; } = 0;
 
         /// <summary>
         /// 自定义参数：启用断点续传的最小尺寸
@@ -101,7 +122,7 @@ namespace YooAsset
         public List<long> ResumeDownloadResponseCodes { private set; get; } = null;
 
         /// <summary>
-        ///  自定义参数：解密方法类
+        ///  自定义参数：解密服务接口的实例类
         /// </summary>
         public IDecryptionServices DecryptionServices { private set; get; }
 
@@ -111,7 +132,7 @@ namespace YooAsset
         public IManifestRestoreServices ManifestServices { private set; get; }
 
         /// <summary>
-        /// 自定义参数：拷贝内置文件服务类
+        /// 自定义参数：拷贝内置文件接口的实例类
         /// </summary>
         public ICopyLocalFileServices CopyLocalFileServices { private set; get; }
         #endregion
@@ -147,6 +168,11 @@ namespace YooAsset
                 var operation = new ClearUnusedCacheBundleFilesOperation(this, manifest);
                 return operation;
             }
+            else if (options.ClearMode == EFileClearMode.ClearBundleFilesByLocations.ToString())
+            {
+                var operation = new ClearCacheBundleFilesByLocationsOperaiton(this, manifest, options.ClearParam);
+                return operation;
+            }
             else if (options.ClearMode == EFileClearMode.ClearBundleFilesByTags.ToString())
             {
                 var operation = new ClearCacheBundleFilesByTagsOperaiton(this, manifest, options.ClearParam);
@@ -215,13 +241,25 @@ namespace YooAsset
             {
                 RemoteServices = (IRemoteServices)value;
             }
+            else if (name == FileSystemParametersDefine.INSTALL_CLEAR_MODE)
+            {
+                InstallClearMode = (EOverwriteInstallClearMode)value;
+            }
             else if (name == FileSystemParametersDefine.FILE_VERIFY_LEVEL)
             {
                 FileVerifyLevel = (EFileVerifyLevel)value;
             }
-            else if (name == FileSystemParametersDefine.INSTALL_CLEAR_MODE)
+            else if (name == FileSystemParametersDefine.FILE_VERIFY_MAX_CONCURRENCY)
             {
-                InstallClearMode = (EOverwriteInstallClearMode)value;
+                int convertValue = Convert.ToInt32(value);
+                if (convertValue > 256)
+                {
+                    YooLogger.Warning($"FILE_VERIFY_MAX_CONCURRENCY value {convertValue} is too large, clamped to 256. Recommended range: 1 - 128.");
+                }
+
+                // 限制在合理范围内：1-256                                                                             
+                // 超过 256 的并发数对于文件验证来说没有意义，反而会增加线程池压力  
+                FileVerifyMaxConcurrency = Mathf.Clamp(convertValue, 1, 256);
             }
             else if (name == FileSystemParametersDefine.APPEND_FILE_EXTENSION)
             {
@@ -233,11 +271,28 @@ namespace YooAsset
             }
             else if (name == FileSystemParametersDefine.DOWNLOAD_MAX_CONCURRENCY)
             {
-                DownloadMaxConcurrency = Convert.ToInt32(value);
+                int convertValue = Convert.ToInt32(value);
+                if (convertValue > 64)
+                {
+                    YooLogger.Warning($"DOWNLOAD_MAX_CONCURRENCY value {convertValue} is too large, clamped to 64. Recommended range: 1 - 32.");
+                }
+
+                DownloadMaxConcurrency = Mathf.Clamp(convertValue, 1, 64);
             }
             else if (name == FileSystemParametersDefine.DOWNLOAD_MAX_REQUEST_PER_FRAME)
             {
-                DownloadMaxRequestPerFrame = Convert.ToInt32(value);
+                int convertValue = Convert.ToInt32(value);
+                if (convertValue > 20)
+                {
+                    YooLogger.Warning($"DOWNLOAD_MAX_REQUEST_PER_FRAME value {convertValue} is too large, clamped to 20. Recommended range: 1 - 10.");
+                }
+
+                DownloadMaxRequestPerFrame = Mathf.Clamp(convertValue, 1, 20);
+            }
+            else if (name == FileSystemParametersDefine.DOWNLOAD_WATCH_DOG_TIME)
+            {
+                int convertValue = Convert.ToInt32(value);
+                DownloadWatchDogTime = Mathf.Clamp(convertValue, 0, int.MaxValue);
             }
             else if (name == FileSystemParametersDefine.RESUME_DOWNLOAD_MINMUM_SIZE)
             {
@@ -276,13 +331,17 @@ namespace YooAsset
             _cacheBundleFilesRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.BundleFilesFolderName);
             _cacheManifestFilesRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.ManifestFilesFolderName);
             _tempFilesRoot = PathUtility.Combine(_packageRoot, DefaultCacheFileSystemDefine.TempFilesFolderName);
+
+            // 创建默认的下载后台接口
+            if (DownloadBackend == null)
+                DownloadBackend = new UnityWebRequestBackend(DownloadSystemHelper.UnityWebRequestCreater);
         }
         public virtual void OnDestroy()
         {
-            if (DownloadCenter != null)
+            if (DownloadScheduler != null)
             {
-                DownloadCenter.AbortOperation();
-                DownloadCenter = null;
+                DownloadScheduler.Dispose();
+                DownloadScheduler = null;
             }
         }
 
@@ -448,7 +507,7 @@ namespace YooAsset
         {
             if (_records.ContainsKey(bundle.BundleGUID))
             {
-                throw new Exception("Should never get here !");
+                throw new YooInternalException();
             }
 
             string infoFilePath = GetBundleInfoFilePath(bundle);
@@ -470,9 +529,9 @@ namespace YooAsset
                 // 写入文件信息
                 WriteBundleInfoFile(infoFilePath, bundle.FileCRC, bundle.FileSize);
             }
-            catch (Exception e)
+            catch (Exception ex)
             {
-                YooLogger.Error($"Failed to write cache file ! {e.Message}");
+                YooLogger.Error($"Failed to write cache file ! {ex.Message}");
                 return false;
             }
 
@@ -493,22 +552,22 @@ namespace YooAsset
         }
 
         private readonly BufferWriter _sharedBuffer = new BufferWriter(1024);
-        public void WriteBundleInfoFile(string filePath, string dataFileCRC, long dataFileSize)
+        public void WriteBundleInfoFile(string filePath, uint dataFileCRC, long dataFileSize)
         {
             using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Read))
             {
                 _sharedBuffer.Clear();
-                _sharedBuffer.WriteUTF8(dataFileCRC);
+                _sharedBuffer.WriteUInt32(dataFileCRC);
                 _sharedBuffer.WriteInt64(dataFileSize);
                 _sharedBuffer.WriteToStream(fs);
                 fs.Flush();
             }
         }
-        public void ReadBundleInfoFile(string filePath, out string dataFileCRC, out long dataFileSize)
+        public void ReadBundleInfoFile(string filePath, out uint dataFileCRC, out long dataFileSize)
         {
             byte[] binaryData = FileUtility.ReadAllBytes(filePath);
             BufferReader buffer = new BufferReader(binaryData);
-            dataFileCRC = buffer.ReadUTF8();
+            dataFileCRC = buffer.ReadUInt32();
             dataFileSize = buffer.ReadInt64();
         }
         #endregion

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Elements/RecordFileElement.cs

@@ -7,10 +7,10 @@ namespace YooAsset
     {
         public string InfoFilePath { private set; get; }
         public string DataFilePath { private set; get; }
-        public string DataFileCRC { private set; get; }
+        public uint DataFileCRC { private set; get; }
         public long DataFileSize { private set; get; }
 
-        public RecordFileElement(string infoFilePath, string dataFilePath, string dataFileCRC, long dataFileSize)
+        public RecordFileElement(string infoFilePath, string dataFilePath, uint dataFileCRC, long dataFileSize)
         {
             InfoFilePath = infoFilePath;
             DataFilePath = dataFilePath;
@@ -37,9 +37,9 @@ namespace YooAsset
                     return false;
                 }
             }
-            catch (Exception e)
+            catch (Exception ex)
             {
-                YooLogger.Error($"Failed to delete cache file ! {e.Message}");
+                YooLogger.Error($"Failed to delete cache file ! {ex.Message}");
                 return false;
             }
         }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Elements/TempFileElement.cs

@@ -4,7 +4,7 @@ namespace YooAsset
     internal class TempFileElement
     {
         public string TempFilePath { private set; get; }
-        public string TempFileCRC { private set; get; }
+        public uint TempFileCRC { private set; get; }
         public long TempFileSize { private set; get; }
 
         /// <summary>
@@ -12,7 +12,7 @@ namespace YooAsset
         /// </summary>
         public volatile int Result = 0;
 
-        public TempFileElement(string filePath, string fileCRC, long fileSize)
+        public TempFileElement(string filePath, uint fileCRC, long fileSize)
         {
             TempFilePath = filePath;
             TempFileCRC = fileCRC;

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Elements/VerifyFileElement.cs

@@ -10,7 +10,7 @@ namespace YooAsset
         public string DataFilePath { private set; get; }
         public string InfoFilePath { private set; get; }
 
-        public string DataFileCRC;
+        public uint DataFileCRC;
         public long DataFileSize;
 
         /// <summary>
@@ -33,9 +33,9 @@ namespace YooAsset
             {
                 Directory.Delete(FileRootPath, true);
             }
-            catch (System.Exception e)
+            catch (System.Exception ex)
             {
-                YooLogger.Warning($"Failed to delete cache bundle folder : {e}");
+                YooLogger.Warning($"Failed to delete cache bundle folder : {ex}");
             }
         }
     }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSInitializeOperation.cs

@@ -9,7 +9,7 @@ namespace YooAsset
             CheckAppFootPrint,
             SearchCacheFiles,
             VerifyCacheFiles,
-            CreateDownloadCenter,
+            CreateDownloadScheduler,
             Done,
         }
 
@@ -110,7 +110,7 @@ namespace YooAsset
 
                 if (_verifyCacheFilesOp.Status == EOperationStatus.Succeed)
                 {
-                    _steps = ESteps.CreateDownloadCenter;
+                    _steps = ESteps.CreateDownloadScheduler;
                     YooLogger.Log($"Package '{_fileSystem.PackageName}' '{_fileSystem.GetType().Name}' cached files count : {_fileSystem.FileCount}");
                 }
                 else
@@ -121,13 +121,13 @@ namespace YooAsset
                 }
             }
 
-            if (_steps == ESteps.CreateDownloadCenter)
+            if (_steps == ESteps.CreateDownloadScheduler)
             {
                 // 注意：下载中心作为独立任务运行！
-                if (_fileSystem.DownloadCenter == null)
+                if (_fileSystem.DownloadScheduler == null)
                 {
-                    _fileSystem.DownloadCenter = new DownloadCenterOperation(_fileSystem);
-                    OperationSystem.StartOperation(_fileSystem.PackageName, _fileSystem.DownloadCenter);
+                    _fileSystem.DownloadScheduler = new DownloadSchedulerOperation(_fileSystem);
+                    OperationSystem.StartOperation(_fileSystem.PackageName, _fileSystem.DownloadScheduler);
                 }
 
                 _steps = ESteps.Done;

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs

@@ -11,6 +11,7 @@ namespace YooAsset
             None,
             CheckExist,
             DownloadFile,
+            AbortDownload,
             LoadAssetBundle,
             CheckResult,
             Done,
@@ -63,6 +64,17 @@ namespace YooAsset
                 }
             }
 
+            if (_steps == ESteps.DownloadFile)
+            {
+                // 中断下载
+                if (AbortDownloadFile)
+                {
+                    if (_downloadFileOp != null)
+                        _downloadFileOp.AbortOperation();
+                    _steps = ESteps.AbortDownload;
+                }
+            }
+
             if (_steps == ESteps.DownloadFile)
             {
                 if (_downloadFileOp == null)
@@ -94,6 +106,23 @@ namespace YooAsset
                 }
             }
 
+            if (_steps == ESteps.AbortDownload)
+            {
+                if (_downloadFileOp != null)
+                {
+                    if (IsWaitForAsyncComplete)
+                        _downloadFileOp.WaitForAsyncComplete();
+
+                    _downloadFileOp.UpdateOperation();
+                    if (_downloadFileOp.IsDone == false)
+                        return;
+                }
+
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "Abort download file !";
+            }
+
             if (_steps == ESteps.LoadAssetBundle)
             {
                 if (_bundle.Encrypted)
@@ -251,6 +280,7 @@ namespace YooAsset
             None,
             CheckExist,
             DownloadFile,
+            AbortDownload,
             LoadCacheRawBundle,
             Done,
         }
@@ -290,11 +320,11 @@ namespace YooAsset
                             File.Move(recordFileElement.DataFilePath, filePath);
                             _steps = ESteps.LoadCacheRawBundle;
                         }
-                        catch (Exception e)
+                        catch (Exception ex)
                         {
                             _steps = ESteps.Done;
                             Status = EOperationStatus.Failed;
-                            Error = $"Faild rename raw data file : {e.Message}";
+                            Error = $"Faild rename raw data file : {ex.Message}";
                         }
                     }
                     else
@@ -310,6 +340,17 @@ namespace YooAsset
                 }
             }
 
+            if (_steps == ESteps.DownloadFile)
+            {
+                // 中断下载
+                if (AbortDownloadFile)
+                {
+                    if (_downloadFileOp != null)
+                        _downloadFileOp.AbortOperation();
+                    _steps = ESteps.AbortDownload;
+                }
+            }
+
             if (_steps == ESteps.DownloadFile)
             {
                 if (_downloadFileOp == null)
@@ -341,6 +382,23 @@ namespace YooAsset
                 }
             }
 
+            if (_steps == ESteps.AbortDownload)
+            {
+                if (_downloadFileOp != null)
+                {
+                    if (IsWaitForAsyncComplete)
+                        _downloadFileOp.WaitForAsyncComplete();
+
+                    _downloadFileOp.UpdateOperation();
+                    if (_downloadFileOp.IsDone == false)
+                        return;
+                }
+
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = "Abort download file !";
+            }
+
             if (_steps == ESteps.LoadCacheRawBundle)
             {
                 string filePath = _fileSystem.GetCacheBundleFileLoadPath(_bundle);

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/ClearCacheBundleFilesByLocationsOperaiton.cs

@@ -0,0 +1,142 @@
+using System.Collections.Generic;
+
+namespace YooAsset
+{
+    internal class ClearCacheBundleFilesByLocationsOperaiton : FSClearCacheFilesOperation
+    {
+        private enum ESteps
+        {
+            None,
+            CheckManifest,
+            CheckArgs,
+            GetClearCacheFiles,
+            ClearFilterCacheFiles,
+            Done,
+        }
+
+        private readonly DefaultCacheFileSystem _fileSystem;
+        private readonly PackageManifest _manifest;
+        private readonly object _clearParam;
+        private string[] _locations;
+        private List<string> _clearBundleGUIDs;
+        private int _clearFileTotalCount = 0;
+        private ESteps _steps = ESteps.None;
+
+        internal ClearCacheBundleFilesByLocationsOperaiton(DefaultCacheFileSystem fileSystem, PackageManifest manifest, object clearParam)
+        {
+            _fileSystem = fileSystem;
+            _manifest = manifest;
+            _clearParam = clearParam;
+        }
+
+        internal override void InternalStart()
+        {
+            _steps = ESteps.CheckManifest;
+        }
+
+        internal override void InternalUpdate()
+        {
+            if (_steps == ESteps.None || _steps == ESteps.Done)
+                return;
+
+            if (_steps == ESteps.CheckManifest)
+            {
+                if (_manifest == null)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "Can not found active package manifest !";
+                }
+                else
+                {
+                    _steps = ESteps.CheckArgs;
+                }
+            }
+
+            if (_steps == ESteps.CheckArgs)
+            {
+                if (_clearParam == null)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = "Clear param is null !";
+                    return;
+                }
+
+                if (_clearParam is string)
+                {
+                    _locations = new string[] { _clearParam as string };
+                }
+                else if (_clearParam is List<string>)
+                {
+                    var tempList = _clearParam as List<string>;
+                    _locations = tempList.ToArray();
+                }
+                else if (_clearParam is string[])
+                {
+                    _locations = _clearParam as string[];
+                }
+                else
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Failed;
+                    Error = $"Invalid clear param : {_clearParam.GetType().FullName}";
+                    return;
+                }
+
+                _steps = ESteps.GetClearCacheFiles;
+            }
+
+            if (_steps == ESteps.GetClearCacheFiles)
+            {
+                _clearBundleGUIDs = GetBundleGUIDsByLocation();
+                _clearFileTotalCount = _clearBundleGUIDs.Count;
+                _steps = ESteps.ClearFilterCacheFiles;
+            }
+
+            if (_steps == ESteps.ClearFilterCacheFiles)
+            {
+                for (int i = _clearBundleGUIDs.Count - 1; i >= 0; i--)
+                {
+                    string bundleGUID = _clearBundleGUIDs[i];
+                    _fileSystem.DeleteCacheBundleFile(bundleGUID);
+                    _clearBundleGUIDs.RemoveAt(i);
+                    if (OperationSystem.IsBusy)
+                        break;
+                }
+
+                if (_clearFileTotalCount == 0)
+                    Progress = 1.0f;
+                else
+                    Progress = 1.0f - (_clearBundleGUIDs.Count / _clearFileTotalCount);
+
+                if (_clearBundleGUIDs.Count == 0)
+                {
+                    _steps = ESteps.Done;
+                    Status = EOperationStatus.Succeed;
+                }
+            }
+        }
+
+        private List<string> GetBundleGUIDsByLocation()
+        {
+            List<string> result = new List<string>(_locations.Length);
+
+            foreach (var location in _locations)
+            {
+                string assetPath = _manifest.TryMappingToAssetPath(location);
+                if (_manifest.TryGetPackageAsset(assetPath, out PackageAsset packageAsset))
+                {
+                    PackageBundle bundle = _manifest.GetMainPackageBundle(packageAsset.BundleID);
+
+                    if (bundle != null)
+                    {
+                        result.Add(bundle.BundleGUID);
+                    }
+                }
+            }
+
+            return result;
+        }
+    }
+}

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/ClearCacheBundleFilesByLocationsOperaiton.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0be6ffd570645bf4a95126958a8e8a86
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: