diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
index 6d6e62b..4942313 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/DCFSLoadBundleOperation.cs
@@ -31,8 +31,6 @@ namespace YooAsset
         {
             if (_fileSystem.CheckNeedDownload(_bundle))
             {                
-                DownloadProgress = 0f;
-                DownloadedBytes = 0;
                 _steps = ESteps.DownloadFile;
             }
             else
@@ -219,8 +217,6 @@ namespace YooAsset
         {
             if (_fileSystem.CheckNeedDownload(_bundle))
             {
-                DownloadProgress = 0f;
-                DownloadedBytes = 0;
                 _steps = ESteps.DownloadFile;
             }
             else
diff --git a/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/DWFSLoadBundleOperation.cs b/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/DWFSLoadBundleOperation.cs
index 1313863..2ee6c2b 100644
--- a/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/DWFSLoadBundleOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/DefaultWebFileSystem/Operation/DWFSLoadBundleOperation.cs
@@ -24,8 +24,6 @@ namespace YooAsset
         }
         internal override void InternalOnStart()
         {
-            DownloadProgress = 0f;
-            DownloadedBytes = 0;
             _steps = ESteps.DownloadFile;
         }
         internal override void InternalOnUpdate()
diff --git a/Assets/YooAsset/Runtime/FileSystem/Operation/Internal/FSLoadBundleFileOperation.cs b/Assets/YooAsset/Runtime/FileSystem/Operation/Internal/FSLoadBundleFileOperation.cs
index 6313396..ccd6e07 100644
--- a/Assets/YooAsset/Runtime/FileSystem/Operation/Internal/FSLoadBundleFileOperation.cs
+++ b/Assets/YooAsset/Runtime/FileSystem/Operation/Internal/FSLoadBundleFileOperation.cs
@@ -12,12 +12,12 @@ namespace YooAsset
         /// <summary>
         /// 下载进度
         /// </summary>
-        public float DownloadProgress { protected set; get; }
+        public float DownloadProgress { protected set; get; } = 0;
 
         /// <summary>
         /// 下载大小
         /// </summary>
-        public long DownloadedBytes { protected set; get; }
+        public long DownloadedBytes { protected set; get; } = 0;
 
         /// <summary>
         /// 终止下载任务