diff --git a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/CustomPackRule.cs b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/CustomPackRule.cs
index ebd7a3c..1e34ba6 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/CustomPackRule.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/CustomPackRule.cs	
@@ -22,11 +22,6 @@ public class PackEffectTexture : IPackRule
 		var packRuleResult = new PackRuleResult(bundleName, DefaultPackRule.AssetBundleFileExtension);
 		return packRuleResult;
 	}
-
-	bool IPackRule.IsRawFilePackRule()
-	{
-		return false;
-	}
 }
 
 [DisplayName("打包视频（自定义）")]
@@ -41,11 +36,6 @@ public class PackVideo : IPackRule
 		return result;
 	}
 
-	bool IPackRule.IsRawFilePackRule()
-	{
-		return true;
-	}
-
 	private string RemoveExtension(string str)
 	{
 		if (string.IsNullOrEmpty(str))
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/PackageImportWindow.cs b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/PackageImportWindow.cs
index 50fd7e5..50c8cdc 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/PackageImportWindow.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Editor/PackageImportWindow.cs	
@@ -40,7 +40,7 @@ namespace YooAsset.Editor
 			{
 				if (GUILayout.Button("导入补丁包（全部文件）", GUILayout.MaxWidth(150)))
 				{
-					string streamingAssetsRoot = AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot();
+					string streamingAssetsRoot = AssetBundleBuilderHelper.GetStreamingAssetsRoot();
 					EditorTools.ClearFolder(streamingAssetsRoot);
 					CopyPackageFiles(_manifestPath);
 				}
@@ -59,18 +59,18 @@ namespace YooAsset.Editor
 			// 拷贝核心文件
 			{
 				string sourcePath = $"{outputDirectory}/{manifestFileName}.bytes";
-				string destPath = $"{AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot()}/{_packageName}/{manifestFileName}.bytes";
+				string destPath = $"{AssetBundleBuilderHelper.GetStreamingAssetsRoot()}/{_packageName}/{manifestFileName}.bytes";
 				EditorTools.CopyFile(sourcePath, destPath, true);
 			}
 			{
 				string sourcePath = $"{outputDirectory}/{manifestFileName}.hash";
-				string destPath = $"{AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot()}/{_packageName}/{manifestFileName}.hash";
+				string destPath = $"{AssetBundleBuilderHelper.GetStreamingAssetsRoot()}/{_packageName}/{manifestFileName}.hash";
 				EditorTools.CopyFile(sourcePath, destPath, true);
 			}
 			{
 				string fileName = YooAssetSettingsData.GetPackageVersionFileName(manifest.PackageName);
 				string sourcePath = $"{outputDirectory}/{fileName}";
-				string destPath = $"{AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot()}/{_packageName}/{fileName}";
+				string destPath = $"{AssetBundleBuilderHelper.GetStreamingAssetsRoot()}/{_packageName}/{fileName}";
 				EditorTools.CopyFile(sourcePath, destPath, true);
 			}
 
@@ -80,7 +80,7 @@ namespace YooAsset.Editor
 			{
 				fileCount++;
 				string sourcePath = $"{outputDirectory}/{packageBundle.FileName}";
-				string destPath = $"{AssetBundleBuilderHelper.GetDefaultStreamingAssetsRoot()}/{_packageName}/{packageBundle.FileName}";
+				string destPath = $"{AssetBundleBuilderHelper.GetStreamingAssetsRoot()}/{_packageName}/{packageBundle.FileName}";
 				EditorTools.CopyFile(sourcePath, destPath, true);
 			}
 
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/AssetOperationHandleExtension.cs b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/AssetOperationHandleExtension.cs
index 971b252..45cf55a 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/AssetOperationHandleExtension.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/AssetOperationHandleExtension.cs	
@@ -5,28 +5,10 @@ using YooAsset;
 
 public static class AssetOperationHandleExtension
 {
-    /*
-    /// <summary>
-    /// 获取资源对象
-    /// </summary>
-    /// <typeparam name="TAsset"></typeparam>
-    /// <param name="asset"></param>
-    public static AssetOperationHandle GetAssetObject<TAsset>(this AssetOperationHandle thisHandle, out TAsset asset) where TAsset : UnityEngine.Object
-    {
-        if (thisHandle.Status != EOperationStatus.Succeed)
-        {
-            var assetInfo = thisHandle.GetAssetInfo();
-            Debug.LogWarning($"The {assetInfo.AssetPath}[{assetInfo.AssetType}] is not success. Error[{thisHandle.LastError}]");
-        }
-        asset = thisHandle.AssetObject as TAsset;
-        return thisHandle;
-    }
-    */
-
     /// <summary>
     /// 等待异步执行完毕
     /// </summary>
-    public static AssetOperationHandle WaitForAsyncOperationComplete(this AssetOperationHandle thisHandle)
+    public static AssetHandle WaitForAsyncOperationComplete(this AssetHandle thisHandle)
     {
         thisHandle.WaitForAsyncComplete();
         return thisHandle;
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/GameObjectAssetReference.cs b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/GameObjectAssetReference.cs
index 0092ae4..fe75fa6 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/GameObjectAssetReference.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/GameObjectAssetReference.cs	
@@ -45,7 +45,7 @@ public class GameObjectAssetReference : MonoBehaviour
 	[HideInInspector]
 	public string AssetGUID = "";
 
-	private AssetOperationHandle _handle;
+	private AssetHandle _handle;
 
 	public void Start()
 	{
@@ -63,7 +63,7 @@ public class GameObjectAssetReference : MonoBehaviour
 		}
 	}
 
-	private void Handle_Completed(AssetOperationHandle handle)
+	private void Handle_Completed(AssetHandle handle)
 	{
 		if (handle.Status == EOperationStatus.Succeed)
 		{
diff --git a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/LoadAssetsByTagOperation.cs b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/LoadAssetsByTagOperation.cs
index 3c9ee48..20bfc09 100644
--- a/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/LoadAssetsByTagOperation.cs	
+++ b/Assets/YooAsset/Samples~/Extension Sample/Scripts/Runtime/LoadAssetsByTagOperation.cs	
@@ -16,7 +16,7 @@ public class LoadAssetsByTagOperation<TObject> : GameAsyncOperation where TObjec
 
 	private readonly string _tag;
 	private ESteps _steps = ESteps.None;
-	private List<AssetOperationHandle> _handles;
+	private List<AssetHandle> _handles;
 
 	/// <summary>
 	/// 资源对象集合
@@ -40,7 +40,7 @@ public class LoadAssetsByTagOperation<TObject> : GameAsyncOperation where TObjec
 		if (_steps == ESteps.LoadAssets)
 		{
 			AssetInfo[] assetInfos = YooAssets.GetAssetInfos(_tag);
-			_handles = new List<AssetOperationHandle>(assetInfos.Length);
+			_handles = new List<AssetHandle>(assetInfos.Length);
 			foreach (var assetInfo in assetInfos)
 			{
 				var handle = YooAssets.LoadAssetAsync(assetInfo);