优化结构，分离为XCharts和XChartsDemo两部分

Assets/XChartsDemo/Editor/ChartModuleDrawer.cs

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+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using UnityEditor;
+using UnityEngine;
+
+namespace XChartsDemo
+{
+    [CustomPropertyDrawer(typeof(ChartModule), true)]
+    public class ChartModuleDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect pos, SerializedProperty prop, GUIContent label)
+        {
+            Rect drawRect = pos;
+            drawRect.height = EditorGUIUtility.singleLineHeight;
+            var lastX = drawRect.x;
+            var lastWid = drawRect.width;
+            SerializedProperty m_Name = prop.FindPropertyRelative("m_Name");
+            SerializedProperty m_Title = prop.FindPropertyRelative("m_Title");
+            SerializedProperty m_Selected = prop.FindPropertyRelative("m_Selected");
+            SerializedProperty m_Panel = prop.FindPropertyRelative("m_Panel");
+            var fieldWid = EditorGUIUtility.currentViewWidth - 30 - 5 - 50 - 90;
+            drawRect.width = 15;
+            EditorGUI.PropertyField(drawRect,m_Selected,GUIContent.none);
+            drawRect.x += 15;
+            drawRect.width = 50;
+            EditorGUI.PropertyField(drawRect,m_Name,GUIContent.none);
+            drawRect.x += 52;
+            drawRect.width = fieldWid;
+            EditorGUI.PropertyField(drawRect,m_Title,GUIContent.none);
+            drawRect.x += fieldWid + 2;
+            drawRect.width = 90;
+            EditorGUI.PropertyField(drawRect,m_Panel,GUIContent.none);
+        }
+
+        public override float GetPropertyHeight(SerializedProperty prop, GUIContent label)
+        {
+            return 1 * EditorGUIUtility.singleLineHeight + 1 * EditorGUIUtility.standardVerticalSpacing;
+        }
+    }
+}

Assets/XChartsDemo/Editor/ChartModuleDrawer.cs.meta

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+fileFormatVersion: 2
+guid: 2fbbaed3e670f478c844c1bdfc73d433
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/XChartsDemo/Editor/DemoEditor.cs

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+
+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using UnityEditor;
+
+namespace XChartsDemo
+{
+    /// <summary>
+    /// Editor class used to edit UI BaseChart.
+    /// </summary>
+
+    [CustomEditor(typeof(Demo), false)]
+    public class DemoEditor : Editor
+    {
+        protected Demo m_Target;
+        protected SerializedProperty m_Script;
+        protected SerializedProperty m_ButtonNormalColor;
+        protected SerializedProperty m_ButtonSelectedColor;
+        protected SerializedProperty m_ButtonHighlightColor;
+        protected SerializedProperty m_ChartModule;
+        protected virtual void OnEnable()
+        {
+            m_Target = (Demo)target;
+            m_Script = serializedObject.FindProperty("m_Script");
+            m_ButtonNormalColor = serializedObject.FindProperty("m_ButtonNormalColor");
+            m_ButtonSelectedColor = serializedObject.FindProperty("m_ButtonSelectedColor");
+            m_ButtonHighlightColor = serializedObject.FindProperty("m_ButtonHighlightColor");
+            m_ChartModule = serializedObject.FindProperty("m_ChartModule");
+
+        }
+
+        public override void OnInspectorGUI()
+        {
+            if (m_Target == null && target == null)
+            {
+                base.OnInspectorGUI();
+                return;
+            }
+            serializedObject.Update();
+            EditorGUILayout.PropertyField(m_ButtonNormalColor);
+            EditorGUILayout.PropertyField(m_ButtonSelectedColor);
+            EditorGUILayout.PropertyField(m_ButtonHighlightColor);
+
+            var size = m_ChartModule.arraySize;
+            size = EditorGUILayout.IntField("Chart Module Size", size);
+            if (size != m_ChartModule.arraySize)
+            {
+                while (size > m_ChartModule.arraySize)
+                    m_ChartModule.InsertArrayElementAtIndex(m_ChartModule.arraySize);
+                while (size < m_ChartModule.arraySize)
+                    m_ChartModule.DeleteArrayElementAtIndex(m_ChartModule.arraySize - 1);
+            }
+            for (int i = 0; i < size; i++)
+            {
+                EditorGUILayout.PropertyField(m_ChartModule.GetArrayElementAtIndex(i));
+            }
+
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+}

Assets/XChartsDemo/Editor/DemoEditor.cs.meta

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+fileFormatVersion: 2
+guid: 90c1787bea03849c8b6d19be625b7e17
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
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