结构大修改，改成朴实无华的结构，不过度架构。能跑就行

Assets/Scripts/Editor/Builder/Builder.cs

@@ -2,7 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-using NBC.Editor;
+using NBC.Asset.Editor;
 using UnityEditor;
 using Debug = UnityEngine.Debug;
 

Assets/Scripts/Editor/Builder/Tasks/BuildABTask.cs

@@ -18,7 +18,8 @@ namespace NBF
             }
 
             DeleteStreamingAssetsBundleCache();
-            NBC.Editor.Builder.Build();
+            NBC.Asset.Editor.Builder.Build();
+           // Builder.Build();
         }
 
         void DeleteStreamingAssetsBundleCache()

Assets/Scripts/Editor/Preview/PreviewEditWindow.cs

@@ -266,7 +266,7 @@ public class RuntimePreviewEditor : EditorWindow
 
         if (isPreviewing)
         {
-            _previewPanel = App.UI.GetUI<PreviewPanel>();
+            _previewPanel = UI.Inst.GetUI<PreviewPanel>();
             if (_previewPanel == null)
             {
                 isPreviewing = false;