删除下载的目标文件

Author: coding2233

GameFramework/Runtime/WebRequest/WebRequestBehaviourHelper.cs

@@ -167,6 +167,12 @@ private IEnumerator WebRequestAssetBundle(string url, Action<AssetBundle> callba
         private IEnumerator WebRequestDownloadFile(string remoteUrl, string localPath, Action<string, bool,ulong, float> callback,Action<string,string> errorCallback)
         {
             yield return null;
+	    
+	      //删除本地文件
+	   if (File.Exists(localPath))
+	   {
+                File.Delete(localPath);
+            }
 
             using (UnityWebRequest request = UnityWebRequest.Get(remoteUrl))
             {
@@ -197,4 +203,4 @@ private IEnumerator WebRequestDownloadFile(string remoteUrl, string localPath, A
         }
 		#endregion
 	}
-}
+}