update file system

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

@@ -128,6 +128,44 @@ namespace YooAsset
             string buidlinFilePath = GetBuildinFileLoadPath(bundle);
             return UnpackFileSystem.DownloadFileAsync(bundle, buidlinFilePath, failedTryAgain, timeout);
         }
+        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
+        {
+            if (RawFileBuildPipeline)
+            {
+                var operation = new DBFSLoadRawBundleOperation(this, bundle);
+                OperationSystem.StartOperation(PackageName, operation);
+                return operation;
+            }
+            else
+            {
+                var operation = new DBFSLoadAssetBundleOperation(this, bundle);
+                OperationSystem.StartOperation(PackageName, operation);
+                return operation;
+            }
+        }
+        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
+        {
+            AssetBundle assetBundle = result as AssetBundle;
+            if (assetBundle == null)
+                return;
+
+            if (UnpackFileSystem.Exists(bundle))
+            {
+                UnpackFileSystem.UnloadBundleFile(bundle, assetBundle);
+            }
+            else
+            {
+                if (assetBundle != null)
+                    assetBundle.Unload(true);
+
+                if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
+                {
+                    managedStream.Close();
+                    managedStream.Dispose();
+                    _loadedStream.Remove(bundle.BundleGUID);
+                }
+            }
+        }
 
         public virtual void SetParameter(string name, object value)
         {
@@ -170,26 +208,17 @@ namespace YooAsset
 
         public virtual bool Belong(PackageBundle bundle)
         {
-            return Belong(bundle.BundleGUID);
+            return _wrappers.ContainsKey(bundle.BundleGUID);
-        }
-        public virtual bool Belong(string bundleGUID)
-        {
-            return _wrappers.ContainsKey(bundleGUID);
         }
         public virtual bool Exists(PackageBundle bundle)
         {
-            return Exists(bundle.BundleGUID);
+            return _wrappers.ContainsKey(bundle.BundleGUID);
         }
-        public virtual bool Exists(string bundleGUID)
+        public virtual bool NeedDownload(PackageBundle bundle)
-        {
-            return _wrappers.ContainsKey(bundleGUID);
-        }
-
-        public virtual bool CheckNeedDownload(PackageBundle bundle)
         {
             return false;
         }
-        public virtual bool CheckNeedUnpack(PackageBundle bundle)
+        public virtual bool NeedUnpack(PackageBundle bundle)
         {
             if (Belong(bundle) == false)
                 return false;
@@ -200,76 +229,11 @@ namespace YooAsset
             return false;
 #endif
         }
-        public virtual bool CheckNeedImport(PackageBundle bundle)
+        public virtual bool NeedImport(PackageBundle bundle)
         {
             return false;
         }
 
-        public virtual bool WriteFile(PackageBundle bundle, string copyPath)
-        {
-            return UnpackFileSystem.WriteFile(bundle, copyPath);
-        }
-        public virtual bool DeleteFile(PackageBundle bundle)
-        {
-            return UnpackFileSystem.DeleteFile(bundle);
-        }
-        public virtual bool DeleteFile(string bundleGUID)
-        {
-            return UnpackFileSystem.DeleteFile(bundleGUID);
-        }
-        public virtual EFileVerifyResult VerifyFile(PackageBundle bundle)
-        {
-            return UnpackFileSystem.VerifyFile(bundle);
-        }
-
-        public virtual byte[] ReadFileBytes(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual string ReadFileText(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
-        {
-            if (RawFileBuildPipeline)
-            {
-                var operation = new DBFSLoadRawBundleOperation(this, bundle);
-                OperationSystem.StartOperation(PackageName, operation);
-                return operation;
-            }
-            else
-            {
-                var operation = new DBFSLoadAssetBundleOperation(this, bundle);
-                OperationSystem.StartOperation(PackageName, operation);
-                return operation;
-            }
-        }
-        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
-        {
-            AssetBundle assetBundle = result as AssetBundle;
-            if (assetBundle == null)
-                return;
-
-            if (UnpackFileSystem.Exists(bundle))
-            {
-                UnpackFileSystem.UnloadBundleFile(bundle, assetBundle);
-            }
-            else
-            {
-                if (assetBundle != null)
-                    assetBundle.Unload(true);
-
-                if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
-                {
-                    managedStream.Close();
-                    managedStream.Dispose();
-                    _loadedStream.Remove(bundle.BundleGUID);
-                }
-            }
-        }
-
         #region 内部方法
         protected string GetDefaultRoot()
         {
@@ -311,9 +275,9 @@ namespace YooAsset
         }
 
         /// <summary>
-        /// 记录缓存信息
+        /// 记录文件信息
         /// </summary>
-        public bool Record(string bundleGUID, FileWrapper wrapper)
+        public bool RecordFile(string bundleGUID, FileWrapper wrapper)
         {
             if (_wrappers.ContainsKey(bundleGUID))
             {

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

@@ -170,7 +170,7 @@ namespace YooAsset
                     if (manifest.TryGetPackageBundleByFileName(fileName, out PackageBundle value))
                     {
                         var fileWrapper = new DefaultBuildinFileSystem.FileWrapper(fileName);
-                        _fileSystem.Record(value.BundleGUID, fileWrapper);
+                        _fileSystem.RecordFile(value.BundleGUID, fileWrapper);
                     }
                     else
                     {

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

@@ -34,7 +34,7 @@ namespace YooAsset
             DownloadProgress = 1f;
             DownloadedBytes = _bundle.FileSize;
 
-            if (_fileSystem.CheckNeedUnpack(_bundle))
+            if (_fileSystem.NeedUnpack(_bundle))
             {
                 _steps = ESteps.UnpackAssetBundleFile;
             }
@@ -205,7 +205,7 @@ namespace YooAsset
             DownloadProgress = 1f;
             DownloadedBytes = _bundle.FileSize;
 
-            if (_fileSystem.CheckNeedUnpack(_bundle))
+            if (_fileSystem.NeedUnpack(_bundle))
             {
                 _steps = ESteps.UnpackRawBundleFile;
             }

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

@@ -51,7 +51,7 @@ namespace YooAsset
                 foreach (var wrapper in catalog.Wrappers)
                 {
                     var fileWrapper = new DefaultBuildinFileSystem.FileWrapper(wrapper.FileName);
-                    _fileSystem.Record(wrapper.BundleGUID, fileWrapper);
+                    _fileSystem.RecordFile(wrapper.BundleGUID, fileWrapper);
                 }
 
                 YooLogger.Log($"Package '{_fileSystem.PackageName}' catalog files count : {catalog.Wrappers.Count}");

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

@@ -197,6 +197,37 @@ namespace YooAsset
                 }
             }
         }
+        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
+        {
+            if (RawFileBuildPipeline)
+            {
+                var operation = new DCFSLoadRawBundleOperation(this, bundle);
+                OperationSystem.StartOperation(PackageName, operation);
+                return operation;
+            }
+            else
+            {
+                var operation = new DCFSLoadAssetBundleOperation(this, bundle);
+                OperationSystem.StartOperation(PackageName, operation);
+                return operation;
+            }
+        }
+        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
+        {
+            AssetBundle assetBundle = result as AssetBundle;
+            if (assetBundle == null)
+                return;
+
+            if (assetBundle != null)
+                assetBundle.Unload(true);
+
+            if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
+            {
+                managedStream.Close();
+                managedStream.Dispose();
+                _loadedStream.Remove(bundle.BundleGUID);
+            }
+        }
 
         public virtual void SetParameter(string name, object value)
         {
@@ -268,35 +299,26 @@ namespace YooAsset
         }
 
         public virtual bool Belong(PackageBundle bundle)
-        {
-            return Belong(bundle.BundleGUID);
-        }
-        public virtual bool Belong(string bundleGUID)
         {
             // 注意：缓存文件系统保底加载！
             return true;
         }
         public virtual bool Exists(PackageBundle bundle)
         {
-            return Exists(bundle.BundleGUID);
+            return _wrappers.ContainsKey(bundle.BundleGUID);
         }
-        public virtual bool Exists(string bundleGUID)
+        public virtual bool NeedDownload(PackageBundle bundle)
-        {
-            return _wrappers.ContainsKey(bundleGUID);
-        }
-
-        public virtual bool CheckNeedDownload(PackageBundle bundle)
         {
             if (Belong(bundle) == false)
                 return false;
 
             return Exists(bundle) == false;
         }
-        public virtual bool CheckNeedUnpack(PackageBundle bundle)
+        public virtual bool NeedUnpack(PackageBundle bundle)
         {
             return false;
         }
-        public virtual bool CheckNeedImport(PackageBundle bundle)
+        public virtual bool NeedImport(PackageBundle bundle)
         {
             if (Belong(bundle) == false)
                 return false;
@@ -304,119 +326,6 @@ namespace YooAsset
             return Exists(bundle) == false;
         }
 
-        public virtual bool WriteFile(PackageBundle bundle, string copyPath)
-        {
-            if (_wrappers.ContainsKey(bundle.BundleGUID))
-            {
-                throw new Exception("Should never get here !");
-            }
-
-            string infoFilePath = GetInfoFilePath(bundle);
-            string dataFilePath = GetDataFilePath(bundle);
-
-            try
-            {
-                if (File.Exists(infoFilePath))
-                    File.Delete(infoFilePath);
-                if (File.Exists(dataFilePath))
-                    File.Delete(dataFilePath);
-
-                FileUtility.CreateFileDirectory(dataFilePath);
-
-                // 拷贝数据文件
-                FileInfo fileInfo = new FileInfo(copyPath);
-                fileInfo.CopyTo(dataFilePath);
-
-                // 写入文件信息
-                WriteInfoFile(infoFilePath, bundle.FileCRC, bundle.FileSize);
-            }
-            catch (Exception e)
-            {
-                YooLogger.Error($"Failed to write cache file ! {e.Message}");
-                return false;
-            }
-
-            FileWrapper wrapper = new FileWrapper(infoFilePath, dataFilePath, bundle.FileCRC, bundle.FileSize);
-            return Record(bundle.BundleGUID, wrapper);
-        }
-        public virtual bool DeleteFile(PackageBundle bundle)
-        {
-            return DeleteFile(bundle.BundleGUID);
-        }
-        public virtual bool DeleteFile(string bundleGUID)
-        {
-            if (_wrappers.TryGetValue(bundleGUID, out FileWrapper wrapper))
-            {
-                try
-                {
-                    string dataFilePath = wrapper.DataFilePath;
-                    FileInfo fileInfo = new FileInfo(dataFilePath);
-                    if (fileInfo.Exists)
-                        fileInfo.Directory.Delete(true);
-                    _wrappers.Remove(bundleGUID);
-                    return true;
-                }
-                catch (Exception e)
-                {
-                    YooLogger.Error($"Failed to delete cache file ! {e.Message}");
-                    return false;
-                }
-            }
-            else
-            {
-                return false;
-            }
-        }
-        public virtual EFileVerifyResult VerifyFile(PackageBundle bundle)
-        {
-            if (_wrappers.TryGetValue(bundle.BundleGUID, out FileWrapper wrapper) == false)
-                return EFileVerifyResult.CacheNotFound;
-
-            EFileVerifyResult result = FileSystemHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
-            return result;
-        }
-
-        public virtual byte[] ReadFileBytes(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual string ReadFileText(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
-        {
-            if (RawFileBuildPipeline)
-            {
-                var operation = new DCFSLoadRawBundleOperation(this, bundle);
-                OperationSystem.StartOperation(PackageName, operation);
-                return operation;
-            }
-            else
-            {
-                var operation = new DCFSLoadAssetBundleOperation(this, bundle);
-                OperationSystem.StartOperation(PackageName, operation);
-                return operation;
-            }
-        }
-        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
-        {
-            AssetBundle assetBundle = result as AssetBundle;
-            if (assetBundle == null)
-                return;
-
-            if (assetBundle != null)
-                assetBundle.Unload(true);
-
-            if (_loadedStream.TryGetValue(bundle.BundleGUID, out Stream managedStream))
-            {
-                managedStream.Close();
-                managedStream.Dispose();
-                _loadedStream.Remove(bundle.BundleGUID);
-            }
-        }
-
         #region 内部方法
         private readonly BufferWriter _sharedBuffer = new BufferWriter(1024);
         public void WriteInfoFile(string filePath, string dataFileCRC, long dataFileSize)
@@ -504,24 +413,21 @@ namespace YooAsset
         {
             return PathUtility.Combine(_manifestFileRoot, DefaultCacheFileSystemDefine.AppFootPrintFileName);
         }
-        public void DeleteAllManifestFiles()
+
+        /// <summary>
+        /// 是否已经记录了文件
+        /// </summary>
+        public bool IsRecordFile(string bundleGUID)
         {
-            if (Directory.Exists(_manifestFileRoot))
+            return _wrappers.ContainsKey(bundleGUID);
-            {
-                Directory.Delete(_manifestFileRoot, true);
-            }
-        }
-        public List<string> GetAllCachedBundleGUIDs()
-        {
-            return _wrappers.Keys.ToList();
         }
 
         /// <summary>
-        /// 记录缓存信息
+        /// 记录文件信息
         /// </summary>
-        public bool Record(string bundleGUID, FileWrapper wrapper)
+        public bool RecordFile(string bundleGUID, FileWrapper wrapper)
         {
-            if (Exists(bundleGUID))
+            if (_wrappers.ContainsKey(bundleGUID))
             {
                 YooLogger.Error($"{nameof(DefaultCacheFileSystem)} has element : {bundleGUID}");
                 return false;
@@ -530,6 +436,104 @@ namespace YooAsset
             _wrappers.Add(bundleGUID, wrapper);
             return true;
         }
+
+        /// <summary>
+        /// 验证缓存文件
+        /// </summary>
+        public EFileVerifyResult VerifyCacheFile(PackageBundle bundle)
+        {
+            if (_wrappers.TryGetValue(bundle.BundleGUID, out FileWrapper wrapper) == false)
+                return EFileVerifyResult.CacheNotFound;
+
+            EFileVerifyResult result = FileSystemHelper.FileVerify(wrapper.DataFilePath, wrapper.DataFileSize, wrapper.DataFileCRC, EFileVerifyLevel.High);
+            return result;
+        }
+
+        /// <summary>
+        /// 写入缓存文件
+        /// </summary>
+        public bool WriteCacheFile(PackageBundle bundle, string copyPath)
+        {
+            if (_wrappers.ContainsKey(bundle.BundleGUID))
+            {
+                throw new Exception("Should never get here !");
+            }
+
+            string infoFilePath = GetInfoFilePath(bundle);
+            string dataFilePath = GetDataFilePath(bundle);
+
+            try
+            {
+                if (File.Exists(infoFilePath))
+                    File.Delete(infoFilePath);
+                if (File.Exists(dataFilePath))
+                    File.Delete(dataFilePath);
+
+                FileUtility.CreateFileDirectory(dataFilePath);
+
+                // 拷贝数据文件
+                FileInfo fileInfo = new FileInfo(copyPath);
+                fileInfo.CopyTo(dataFilePath);
+
+                // 写入文件信息
+                WriteInfoFile(infoFilePath, bundle.FileCRC, bundle.FileSize);
+            }
+            catch (Exception e)
+            {
+                YooLogger.Error($"Failed to write cache file ! {e.Message}");
+                return false;
+            }
+
+            FileWrapper wrapper = new FileWrapper(infoFilePath, dataFilePath, bundle.FileCRC, bundle.FileSize);
+            return RecordFile(bundle.BundleGUID, wrapper);
+        }
+
+        /// <summary>
+        /// 删除缓存文件
+        /// </summary>
+        public bool DeleteCacheFile(string bundleGUID)
+        {
+            if (_wrappers.TryGetValue(bundleGUID, out FileWrapper wrapper))
+            {
+                try
+                {
+                    string dataFilePath = wrapper.DataFilePath;
+                    FileInfo fileInfo = new FileInfo(dataFilePath);
+                    if (fileInfo.Exists)
+                        fileInfo.Directory.Delete(true);
+                    _wrappers.Remove(bundleGUID);
+                    return true;
+                }
+                catch (Exception e)
+                {
+                    YooLogger.Error($"Failed to delete cache file ! {e.Message}");
+                    return false;
+                }
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// 删除所有清单文件
+        /// </summary>
+        public void DeleteAllManifestFiles()
+        {
+            if (Directory.Exists(_manifestFileRoot))
+            {
+                Directory.Delete(_manifestFileRoot, true);
+            }
+        }
+
+        /// <summary>
+        /// 获取所有缓存文件GUID
+        /// </summary>
+        public List<string> GetAllCachedBundleGUIDs()
+        {
+            return _wrappers.Keys.ToList();
+        }
         #endregion
     }
 }

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

@@ -45,7 +45,7 @@ namespace YooAsset
                 for (int i = _allBundleGUIDs.Count - 1; i >= 0; i--)
                 {
                     string bundleGUID = _allBundleGUIDs[i];
-                    _fileSystem.DeleteFile(bundleGUID);
+                    _fileSystem.DeleteCacheFile(bundleGUID);
                     _allBundleGUIDs.RemoveAt(i);
                     if (OperationSystem.IsBusy)
                         break;

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

@@ -47,7 +47,7 @@ namespace YooAsset
                 for (int i = _unusedBundleGUIDs.Count - 1; i >= 0; i--)
                 {
                     string bundleGUID = _unusedBundleGUIDs[i];
-                    _fileSystem.DeleteFile(bundleGUID);
+                    _fileSystem.DeleteCacheFile(bundleGUID);
                     _unusedBundleGUIDs.RemoveAt(i);
                     if (OperationSystem.IsBusy)
                         break;

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

@@ -8,17 +8,18 @@ namespace YooAsset
     {
         private readonly DefaultCacheFileSystem _fileSystem;
         private VerifyTempFileOperation _verifyOperation;
-        private string _fileSavePath;
+        private string _tempFilePath;
         private ESteps _steps = ESteps.None;
 
-        internal DCFSDownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string mainURL, string fallbackURL, int failedTryAgain, int timeout)
+        internal DCFSDownloadNormalFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, 
+            string mainURL, string fallbackURL, int failedTryAgain, int timeout)
             : base(bundle, mainURL, fallbackURL, failedTryAgain, timeout)
         {
             _fileSystem = fileSystem;
         }
         internal override void InternalOnStart()
         {
-            _fileSavePath = _fileSystem.GetTempFilePath(Bundle);
+            _tempFilePath = _fileSystem.GetTempFilePath(Bundle);
             _steps = ESteps.CheckExists;
         }
         internal override void InternalOnUpdate()
@@ -43,26 +44,17 @@ namespace YooAsset
             // 创建下载器
             if (_steps == ESteps.CreateRequest)
             {
-                FileUtility.CreateFileDirectory(_fileSavePath);
+                FileUtility.CreateFileDirectory(_tempFilePath);
+
+                // 删除临时文件
+                if (File.Exists(_tempFilePath))
+                    File.Delete(_tempFilePath);
 
                 // 获取请求地址
                 _requestURL = GetRequestURL();
 
-                // 重置变量
+                // 重置请求
-                _isAbort = false;
+                ResetRequestFiled();
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-                DownloadProgress = 0f;
-                DownloadedBytes = 0;
-
-                // 重置计时器
-                if (_tryAgainTimer > 0f)
-                    YooLogger.Warning($"Try again download : {_requestURL}");
-                _tryAgainTimer = 0f;
-
-                // 删除临时文件
-                if (File.Exists(_fileSavePath))
-                    File.Delete(_fileSavePath);
 
                 // 创建下载器
                 CreateWebRequest();
@@ -95,7 +87,7 @@ namespace YooAsset
             // 验证下载文件
             if (_steps == ESteps.VerifyTempFile)
             {
-                var element = new TempFileElement(_fileSavePath, Bundle.FileCRC, Bundle.FileSize);
+                var element = new TempFileElement(_tempFilePath, Bundle.FileCRC, Bundle.FileSize);
                 _verifyOperation = new VerifyTempFileOperation(element);
                 OperationSystem.StartOperation(_fileSystem.PackageName, _verifyOperation);
                 _steps = ESteps.CheckVerifyTempFile;
@@ -111,7 +103,7 @@ namespace YooAsset
 
                 if (_verifyOperation.Status == EOperationStatus.Succeed)
                 {
-                    if (_fileSystem.WriteFile(Bundle, _fileSavePath))
+                    if (_fileSystem.WriteCacheFile(Bundle, _tempFilePath))
                     {
                         Status = EOperationStatus.Succeed;
                         _steps = ESteps.Done;
@@ -131,8 +123,8 @@ namespace YooAsset
                 }
 
                 // 注意：验证完成后直接删除文件
-                if (File.Exists(_fileSavePath))
+                if (File.Exists(_tempFilePath))
-                    File.Delete(_fileSavePath);
+                    File.Delete(_tempFilePath);
             }
 
             // 重新尝试下载
@@ -183,7 +175,7 @@ namespace YooAsset
         private void CreateWebRequest()
         {
             _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            DownloadHandlerFile handler = new DownloadHandlerFile(_fileSavePath);
+            DownloadHandlerFile handler = new DownloadHandlerFile(_tempFilePath);
             handler.removeFileOnAbort = true;
             _webRequest.downloadHandler = handler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
@@ -210,7 +202,8 @@ namespace YooAsset
         private ESteps _steps = ESteps.None;
 
 
-        internal DCFSDownloadResumeFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle, string mainURL, string fallbackURL, int failedTryAgain, int timeout)
+        internal DCFSDownloadResumeFileOperation(DefaultCacheFileSystem fileSystem, PackageBundle bundle,
+            string mainURL, string fallbackURL, int failedTryAgain, int timeout)
                  : base(bundle, mainURL, fallbackURL, failedTryAgain, timeout)
         {
             _fileSystem = fileSystem;
@@ -248,19 +241,10 @@ namespace YooAsset
                 _requestURL = GetRequestURL();
 
                 // 重置变量
-                _isAbort = false;
+                ResetRequestFiled();
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-                _fileOriginLength = 0;
-                DownloadProgress = 0f;
-                DownloadedBytes = 0;
-
-                // 重置计时器
-                if (_tryAgainTimer > 0f)
-                    YooLogger.Warning($"Try again download : {_requestURL}");
-                _tryAgainTimer = 0f;
 
                 // 获取下载起始位置
+                _fileOriginLength = 0;
                 long fileBeginLength = -1;
                 if (File.Exists(_fileSavePath))
                 {
@@ -325,7 +309,7 @@ namespace YooAsset
 
                 if (_verifyOperation.Status == EOperationStatus.Succeed)
                 {
-                    if (_fileSystem.WriteFile(Bundle, _fileSavePath))
+                    if (_fileSystem.WriteCacheFile(Bundle, _fileSavePath))
                     {
                         Status = EOperationStatus.Succeed;
                         _steps = ESteps.Done;

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

@@ -29,7 +29,7 @@ namespace YooAsset
         }
         internal override void InternalOnStart()
         {
-            if (_fileSystem.CheckNeedDownload(_bundle))
+            if (_fileSystem.NeedDownload(_bundle))
             {                
                 _steps = ESteps.DownloadFile;
             }
@@ -112,7 +112,7 @@ namespace YooAsset
                 {
                     // 注意：当缓存文件的校验等级为Low的时候，并不能保证缓存文件的完整性。
                     // 说明：在AssetBundle文件加载失败的情况下，我们需要重新验证文件的完整性！
-                    EFileVerifyResult result = _fileSystem.VerifyFile(_bundle);
+                    EFileVerifyResult result = _fileSystem.VerifyCacheFile(_bundle);
                     if (result == EFileVerifyResult.Succeed)
                     {
                         // 注意：在安卓移动平台，华为和三星真机上有极小概率加载资源包失败。
@@ -146,7 +146,7 @@ namespace YooAsset
                     else
                     {
                         _steps = ESteps.Done;
-                        _fileSystem.DeleteFile(_bundle);
+                        _fileSystem.DeleteCacheFile(_bundle.BundleGUID);
                         Status = EOperationStatus.Failed;
                         Error = $"Find corrupted file and delete the file : {_bundle.BundleName}";                  
                         YooLogger.Error(Error);
@@ -215,7 +215,7 @@ namespace YooAsset
         }
         internal override void InternalOnStart()
         {
-            if (_fileSystem.CheckNeedDownload(_bundle))
+            if (_fileSystem.NeedDownload(_bundle))
             {
                 _steps = ESteps.DownloadFile;
             }

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

@@ -81,7 +81,7 @@ namespace YooAsset
                 foreach (var chidDirectory in childDirectories)
                 {
                     string bundleGUID = chidDirectory.Name;
-                    if (_fileSystem.Exists(bundleGUID))
+                    if (_fileSystem.IsRecordFile(bundleGUID))
                         continue;
 
                     // 创建验证元素类

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

@@ -159,7 +159,7 @@ namespace YooAsset
             {
                 _succeedCount++;
                 var fileWrapper = new DefaultCacheFileSystem.FileWrapper(element.InfoFilePath, element.DataFilePath, element.DataFileCRC, element.DataFileSize);
-                _fileSystem.Record(element.BundleGUID, fileWrapper);
+                _fileSystem.RecordFile(element.BundleGUID, fileWrapper);
             }
             else
             {

Assets/YooAsset/Runtime/FileSystem/DefaultEditorFileSystem/DefaultEditorFileSystem.cs

@@ -1,12 +1,8 @@
-using System;
+
-using System.IO;
-using System.Collections.Generic;
-using UnityEngine;
-
 namespace YooAsset
 {
     /// <summary>
-    /// 内置文件系统
+    /// 模拟文件系统
     /// </summary>
     internal class DefaultEditorFileSystem : IFileSystem
     {
@@ -95,6 +91,15 @@ namespace YooAsset
         {
             throw new System.NotImplementedException();
         }
+        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
+        {
+            var operation = new DEFSLoadBundleOperation(this, bundle);
+            OperationSystem.StartOperation(PackageName, operation);
+            return operation;
+        }
+        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
+        {
+        }
 
         public virtual void SetParameter(string name, object value)
         {
@@ -124,81 +129,28 @@ namespace YooAsset
         {
             return true;
         }
-        public virtual bool Belong(string bundleGUID)
-        {
-            return true;
-        }
         public virtual bool Exists(PackageBundle bundle)
         {
             return true;
         }
-        public virtual bool Exists(string bundleGUID)
+        public virtual bool NeedDownload(PackageBundle bundle)
-        {
-            return true;
-        }
-
-        public virtual bool CheckNeedDownload(PackageBundle bundle)
         {
             return false;
         }
-        public virtual bool CheckNeedUnpack(PackageBundle bundle)
+        public virtual bool NeedUnpack(PackageBundle bundle)
         {
             return false;
         }
-        public virtual bool CheckNeedImport(PackageBundle bundle)
+        public virtual bool NeedImport(PackageBundle bundle)
         {
             return false;
         }
 
-        public virtual bool WriteFile(PackageBundle bundle, string copyPath)
-        {
-            return true;
-        }
-        public virtual bool DeleteFile(PackageBundle bundle)
-        {
-            return true;
-        }
-        public virtual bool DeleteFile(string bundleGUID)
-        {
-            return true;
-        }
-        public virtual EFileVerifyResult VerifyFile(PackageBundle bundle)
-        {
-            return EFileVerifyResult.Succeed;
-        }
-
-        public virtual byte[] ReadFileBytes(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual string ReadFileText(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
-        {
-            var operation = new DEFSLoadBundleOperation(this, bundle);
-            OperationSystem.StartOperation(PackageName, operation);
-            return operation;
-        }
-        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
-        {
-        }
-
         #region 内部方法
         protected string GetDefaultRoot()
         {
             return "Assets/";
         }
-
-        /// <summary>
-        /// 记录缓存信息
-        /// </summary>
-        public bool Record(string bundleGUID, object value)
-        {
-            return true;
-        }
         #endregion
     }
 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/DefaultWebFileSystem.cs

@@ -5,6 +5,9 @@ using UnityEngine;
 
 namespace YooAsset
 {
+    /// <summary>
+    /// Web文件系统
+    /// </summary>
     internal class DefaultWebFileSystem : IFileSystem
     {
         public class FileWrapper
@@ -128,6 +131,21 @@ namespace YooAsset
         {
             throw new System.NotImplementedException();
         }
+        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
+        {
+            var operation = new DWFSLoadAssetBundleOperation(this, bundle);
+            OperationSystem.StartOperation(PackageName, operation);
+            return operation;
+        }
+        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
+        {
+            AssetBundle assetBundle = result as AssetBundle;
+            if (assetBundle == null)
+                return;
+
+            if (assetBundle != null)
+                assetBundle.Unload(true);
+        }
 
         public virtual void SetParameter(string name, object value)
         {
@@ -165,74 +183,26 @@ namespace YooAsset
         {
             return true;
         }
-        public virtual bool Belong(string bundleGUID)
+        public virtual bool Exists(PackageBundle bundle)
         {
             return true;
         }
-        public virtual bool Exists(PackageBundle bundle)
+        public virtual bool NeedDownload(PackageBundle bundle)
+        {
+            if (Belong(bundle) == false)
+                return false;
+
+            return Exists(bundle) == false;
+        }
+        public virtual bool NeedUnpack(PackageBundle bundle)
         {
             return false;
         }
-        public virtual bool Exists(string bundleGUID)
+        public virtual bool NeedImport(PackageBundle bundle)
         {
             return false;
         }
 
-        public virtual bool CheckNeedDownload(PackageBundle bundle)
-        {
-            return false;
-        }
-        public virtual bool CheckNeedUnpack(PackageBundle bundle)
-        {
-            return false;
-        }
-        public virtual bool CheckNeedImport(PackageBundle bundle)
-        {
-            return false;
-        }
-
-        public virtual bool WriteFile(PackageBundle bundle, string copyPath)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual bool DeleteFile(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual bool DeleteFile(string bundleGUID)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual EFileVerifyResult VerifyFile(PackageBundle bundle)
-        {
-            return EFileVerifyResult.Succeed;
-        }
-
-        public virtual byte[] ReadFileBytes(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-        public virtual string ReadFileText(PackageBundle bundle)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        public virtual FSLoadBundleOperation LoadBundleFile(PackageBundle bundle)
-        {
-            var operation = new DWFSLoadAssetBundleOperation(this, bundle);
-            OperationSystem.StartOperation(PackageName, operation);
-            return operation;
-        }
-        public virtual void UnloadBundleFile(PackageBundle bundle, object result)
-        {
-            AssetBundle assetBundle = result as AssetBundle;
-            if (assetBundle == null)
-                return;
-
-            if (assetBundle != null)
-                assetBundle.Unload(true);
-        }
-
         #region 内部方法
         protected string GetDefaultWebRoot()
         {
@@ -270,9 +240,9 @@ namespace YooAsset
         }
 
         /// <summary>
-        /// 记录缓存信息
+        /// 记录文件信息
         /// </summary>
-        public bool Record(string bundleGUID, FileWrapper wrapper)
+        public bool RecordFile(string bundleGUID, FileWrapper wrapper)
         {
             if (_wrappers.ContainsKey(bundleGUID))
             {

Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/DWFSLoadBundleOperation.cs

@@ -7,13 +7,12 @@ namespace YooAsset
         {
             None,
             DownloadFile,
-            CheckResult,
             Done,
         }
 
         private readonly DefaultWebFileSystem _fileSystem;
         private readonly PackageBundle _bundle;
-        private DWFSDownloadWebFileOperation _downloadWebFileOp;
+        private DownloadHandlerAssetBundleOperation _downloadhanlderAssetBundleOp;
         private ESteps _steps = ESteps.None;
 
 
@@ -33,32 +32,32 @@ namespace YooAsset
 
             if (_steps == ESteps.DownloadFile)
             {
-                if (_downloadWebFileOp == null)
+                if (_downloadhanlderAssetBundleOp == null)
                 {
                     int failedTryAgain = int.MaxValue;
                     int timeout = 60;
                     string mainURL = _fileSystem.RemoteServices.GetRemoteMainURL(_bundle.FileName);
                     string fallbackURL = _fileSystem.RemoteServices.GetRemoteFallbackURL(_bundle.FileName);
-                    _downloadWebFileOp = new DWFSDownloadWebFileOperation(_fileSystem, _bundle, mainURL, fallbackURL, failedTryAgain, timeout);
+                    _downloadhanlderAssetBundleOp = new DownloadHandlerAssetBundleOperation(_fileSystem, _bundle, mainURL, fallbackURL, failedTryAgain, timeout);
                 }
 
-                DownloadProgress = _downloadWebFileOp.DownloadProgress;
+                DownloadProgress = _downloadhanlderAssetBundleOp.DownloadProgress;
-                DownloadedBytes = _downloadWebFileOp.DownloadedBytes;
+                DownloadedBytes = _downloadhanlderAssetBundleOp.DownloadedBytes;
-                Progress = _downloadWebFileOp.Progress;
+                Progress = _downloadhanlderAssetBundleOp.Progress;
-                if (_downloadWebFileOp.IsDone == false)
+                if (_downloadhanlderAssetBundleOp.IsDone == false)
                     return;
 
-                if (_downloadWebFileOp.Status == EOperationStatus.Succeed)
+                if (_downloadhanlderAssetBundleOp.Status == EOperationStatus.Succeed)
                 {
                     _steps = ESteps.Done;
-                    Result = _downloadWebFileOp.Result;
+                    Result = _downloadhanlderAssetBundleOp.Result;
                     Status = EOperationStatus.Succeed;
                 }
                 else
                 {
                     _steps = ESteps.Done;
                     Status = EOperationStatus.Failed;
-                    Error = _downloadWebFileOp.Error;
+                    Error = _downloadhanlderAssetBundleOp.Error;
                 }
             }
         }
@@ -77,8 +76,8 @@ namespace YooAsset
         {
             if (_steps == ESteps.DownloadFile)
             {
-                if (_downloadWebFileOp != null)
+                if (_downloadhanlderAssetBundleOp != null)
-                    _downloadWebFileOp.SetAbort();
+                    _downloadhanlderAssetBundleOp.SetAbort();
             }
         }
     }

Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/internal/DownloadHandlerAssetBundleOperation.cs

@@ -1,22 +1,19 @@
-using System.IO;
+using UnityEngine;
-using UnityEngine;
 using UnityEngine.Networking;
 
 namespace YooAsset
 {
-    internal class DWFSDownloadWebFileOperation : DefaultDownloadFileOperation
+    internal class DownloadHandlerAssetBundleOperation : DefaultDownloadFileOperation
     {
         private readonly DefaultWebFileSystem _fileSystem;
         private DownloadHandlerAssetBundle _downloadhandler;
         private ESteps _steps = ESteps.None;
 
-        /// <summary>
-        /// 下载结果
-        /// </summary>
         public AssetBundle Result { private set; get; }
 
 
-        internal DWFSDownloadWebFileOperation(DefaultWebFileSystem fileSystem, PackageBundle bundle, string mainURL, string fallbackURL, int failedTryAgain, int timeout)
+        internal DownloadHandlerAssetBundleOperation(DefaultWebFileSystem fileSystem, PackageBundle bundle,
+            string mainURL, string fallbackURL, int failedTryAgain, int timeout)
             : base(bundle, mainURL, fallbackURL, failedTryAgain, timeout)
         {
             _fileSystem = fileSystem;
@@ -37,16 +34,7 @@ namespace YooAsset
                 _requestURL = GetRequestURL();
 
                 // 重置变量
-                _isAbort = false;
+                ResetRequestFiled();
-                _latestDownloadBytes = 0;
-                _latestDownloadRealtime = Time.realtimeSinceStartup;
-                DownloadProgress = 0f;
-                DownloadedBytes = 0;
-
-                // 重置计时器
-                if (_tryAgainTimer > 0f)
-                    YooLogger.Warning($"Try again download : {_requestURL}");
-                _tryAgainTimer = 0f;
 
                 // 创建下载器
                 CreateWebRequest();
@@ -110,11 +98,21 @@ namespace YooAsset
 
         private void CreateWebRequest()
         {
+            _downloadhandler = CreateDownloadHandler();
             _webRequest = DownloadSystemHelper.NewUnityWebRequestGet(_requestURL);
-            _webRequest.downloadHandler = CreateDownloadHandler();
+            _webRequest.downloadHandler = _downloadhandler;
             _webRequest.disposeDownloadHandlerOnDispose = true;
             _webRequest.SendWebRequest();
         }
+        private void DisposeWebRequest()
+        {
+            if (_webRequest != null)
+            {
+                //注意：引擎底层会自动调用Abort方法
+                _webRequest.Dispose();
+                _webRequest = null;
+            }
+        }
         private DownloadHandlerAssetBundle CreateDownloadHandler()
         {
             if (_fileSystem.DisableUnityWebCache)
@@ -138,14 +136,5 @@ namespace YooAsset
                 return downloadhandler;
             }
         }
-        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/FileSystem/DefaultWebFileSystem/Operation/internal/LoadWebCatalogFileOperation.cs

@@ -60,7 +60,7 @@ namespace YooAsset
                 foreach (var wrapper in catalog.Wrappers)
                 {
                     var fileWrapper = new DefaultWebFileSystem.FileWrapper(wrapper.FileName);
-                    _fileSystem.Record(wrapper.BundleGUID, fileWrapper);
+                    _fileSystem.RecordFile(wrapper.BundleGUID, fileWrapper);
                 }
 
                 YooLogger.Log($"Package '{_fileSystem.PackageName}' catalog files count : {catalog.Wrappers.Count}");

Assets/YooAsset/Runtime/FileSystem/Interface/IFileSystem.cs

@@ -54,6 +54,16 @@ namespace YooAsset
         /// </summary>
         FSDownloadFileOperation DownloadFileAsync(params object[] args);
 
+        /// <summary>
+        /// 加载Bundle文件
+        /// </summary>
+        FSLoadBundleOperation LoadBundleFile(PackageBundle bundle);
+
+        /// <summary>
+        /// 卸载Bundle文件
+        /// </summary>
+        void UnloadBundleFile(PackageBundle bundle, object result);
+
 
         /// <summary>
         /// 设置自定义参数
@@ -76,78 +86,24 @@ namespace YooAsset
         /// </summary>
         bool Belong(PackageBundle bundle);
 
-        /// <summary>
-        /// 查询文件归属
-        /// </summary>
-        bool Belong(string bundleGUID);
-
         /// <summary>
         /// 查询文件是否存在
         /// </summary>
         bool Exists(PackageBundle bundle);
 
         /// <summary>
-        /// 查询文件是否存在
+        /// 是否需要下载
         /// </summary>
-        bool Exists(string bundleGUID);
+        bool NeedDownload(PackageBundle bundle);
-
 
         /// <summary>
-        /// 检测是否需要下载
+        /// 是否需要解压
         /// </summary>
-        bool CheckNeedDownload(PackageBundle bundle);
+        bool NeedUnpack(PackageBundle bundle);
         
         /// <summary>
-        /// 检测是否需要解压
+        /// 是否需要导入
         /// </summary>
-        bool CheckNeedUnpack(PackageBundle bundle);
+        bool NeedImport(PackageBundle bundle);
-
-        /// <summary>
-        /// 检测是否需要导入
-        /// </summary>
-        bool CheckNeedImport(PackageBundle bundle);
-
-
-        /// <summary>
-        /// 写入文件
-        /// </summary>
-        bool WriteFile(PackageBundle bundle, string copyPath);
-
-        /// <summary>
-        /// 删除文件
-        /// </summary>
-        bool DeleteFile(PackageBundle bundle);
-
-        /// <summary>
-        /// 删除文件
-        /// </summary>
-        bool DeleteFile(string bundleGUID);
-
-        /// <summary>
-        /// 校验文件
-        /// </summary>
-        EFileVerifyResult VerifyFile(PackageBundle bundle);
-
-
-        /// <summary>
-        /// 读取文件的二进制数据
-        /// </summary>
-        byte[] ReadFileBytes(PackageBundle bundle);
-
-        /// <summary>
-        /// 读取文件的文本数据
-        /// </summary>
-        string ReadFileText(PackageBundle bundle);
-
-
-        /// <summary>
-        /// 加载Bundle文件
-        /// </summary>
-        FSLoadBundleOperation LoadBundleFile(PackageBundle bundle);
-
-        /// <summary>
-        /// 卸载Bundle文件
-        /// </summary>
-        void UnloadBundleFile(PackageBundle bundle, object result);
     }
 }

Assets/YooAsset/Runtime/FileSystem/Operation/Internal/DefaultDownloadFileOperation.cs

@@ -1,4 +1,5 @@
-using UnityEngine.Networking;
+using UnityEngine;
+using UnityEngine.Networking;
 
 namespace YooAsset
 {
@@ -61,6 +62,24 @@ namespace YooAsset
                 return _mainURL;
         }
 
+        /// <summary>
+        /// 重置请求字段
+        /// </summary>
+        protected void ResetRequestFiled()
+        {
+            // 重置变量
+            _isAbort = false;
+            _latestDownloadBytes = 0;
+            _latestDownloadRealtime = Time.realtimeSinceStartup;
+            DownloadProgress = 0f;
+            DownloadedBytes = 0;
+
+            // 重置计时器
+            if (_tryAgainTimer > 0f)
+                YooLogger.Warning($"Try again download : {_requestURL}");
+            _tryAgainTimer = 0f;
+        }
+
         /// <summary>
         /// 检测请求超时
         /// </summary>

Assets/YooAsset/Runtime/ResourcePackage/BundleInfo.cs

@@ -62,7 +62,7 @@ namespace YooAsset
         /// </summary>
         public bool IsNeedDownloadFromRemote()
         {
-            return _fileSystem.CheckNeedDownload(Bundle);
+            return _fileSystem.NeedDownload(Bundle);
         }
 
         /// <summary>

Assets/YooAsset/Runtime/ResourcePackage/PlayMode/PlayModeHelper.cs

@@ -37,17 +37,17 @@ namespace YooAsset
                 IFileSystem fileSystem = null;
                 if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                 {
-                    if (fileSystemA.CheckNeedDownload(packageBundle))
+                    if (fileSystemA.NeedDownload(packageBundle))
                         fileSystem = fileSystemA;
                 }
                 else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                 {
-                    if (fileSystemB.CheckNeedDownload(packageBundle))
+                    if (fileSystemB.NeedDownload(packageBundle))
                         fileSystem = fileSystemB;
                 }
                 else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                 {
-                    if (fileSystemC.CheckNeedDownload(packageBundle))
+                    if (fileSystemC.NeedDownload(packageBundle))
                         fileSystem = fileSystemC;
                 }
                 else
@@ -70,17 +70,17 @@ namespace YooAsset
                 IFileSystem fileSystem = null;
                 if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                 {
-                    if (fileSystemA.CheckNeedDownload(packageBundle))
+                    if (fileSystemA.NeedDownload(packageBundle))
                         fileSystem = fileSystemA;
                 }
                 else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                 {
-                    if (fileSystemB.CheckNeedDownload(packageBundle))
+                    if (fileSystemB.NeedDownload(packageBundle))
                         fileSystem = fileSystemB;
                 }
                 else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                 {
-                    if (fileSystemC.CheckNeedDownload(packageBundle))
+                    if (fileSystemC.NeedDownload(packageBundle))
                         fileSystem = fileSystemC;
                 }
                 else
@@ -140,17 +140,17 @@ namespace YooAsset
                 IFileSystem fileSystem = null;
                 if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                 {
-                    if (fileSystemA.CheckNeedDownload(packageBundle))
+                    if (fileSystemA.NeedDownload(packageBundle))
                         fileSystem = fileSystemA;
                 }
                 else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                 {
-                    if (fileSystemB.CheckNeedDownload(packageBundle))
+                    if (fileSystemB.NeedDownload(packageBundle))
                         fileSystem = fileSystemB;
                 }
                 else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                 {
-                    if (fileSystemC.CheckNeedDownload(packageBundle))
+                    if (fileSystemC.NeedDownload(packageBundle))
                         fileSystem = fileSystemC;
                 }
                 else
@@ -173,17 +173,17 @@ namespace YooAsset
                 IFileSystem fileSystem = null;
                 if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                 {
-                    if (fileSystemA.CheckNeedUnpack(packageBundle))
+                    if (fileSystemA.NeedUnpack(packageBundle))
                         fileSystem = fileSystemA;
                 }
                 else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                 {
-                    if (fileSystemB.CheckNeedUnpack(packageBundle))
+                    if (fileSystemB.NeedUnpack(packageBundle))
                         fileSystem = fileSystemB;
                 }
                 else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                 {
-                    if (fileSystemC.CheckNeedUnpack(packageBundle))
+                    if (fileSystemC.NeedUnpack(packageBundle))
                         fileSystem = fileSystemC;
                 }
                 else
@@ -207,17 +207,17 @@ namespace YooAsset
                 IFileSystem fileSystem = null;
                 if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                 {
-                    if (fileSystemA.CheckNeedUnpack(packageBundle))
+                    if (fileSystemA.NeedUnpack(packageBundle))
                         fileSystem = fileSystemA;
                 }
                 else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                 {
-                    if (fileSystemB.CheckNeedUnpack(packageBundle))
+                    if (fileSystemB.NeedUnpack(packageBundle))
                         fileSystem = fileSystemB;
                 }
                 else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                 {
-                    if (fileSystemC.CheckNeedUnpack(packageBundle))
+                    if (fileSystemC.NeedUnpack(packageBundle))
                         fileSystem = fileSystemC;
                 }
                 else
@@ -248,17 +248,17 @@ namespace YooAsset
                     IFileSystem fileSystem = null;
                     if (fileSystemA != null && fileSystemA.Belong(packageBundle))
                     {
-                        if (fileSystemA.CheckNeedImport(packageBundle))
+                        if (fileSystemA.NeedImport(packageBundle))
                             fileSystem = fileSystemA;
                     }
                     else if (fileSystemB != null && fileSystemB.Belong(packageBundle))
                     {
-                        if (fileSystemB.CheckNeedImport(packageBundle))
+                        if (fileSystemB.NeedImport(packageBundle))
                             fileSystem = fileSystemB;
                     }
                     else if (fileSystemC != null && fileSystemC.Belong(packageBundle))
                     {
-                        if (fileSystemC.CheckNeedImport(packageBundle))
+                        if (fileSystemC.NeedImport(packageBundle))
                             fileSystem = fileSystemC;
                     }
                     else