diff --git a/winform1/Form1.cs b/winform1/Form1.cs
index d18af802ed4bc1ef5d26af75c2e4064766a868d1..92bb7022088db2ead2a2230208c4661864c083c6 100644
--- a/winform1/Form1.cs
+++ b/winform1/Form1.cs
@@ -18,7 +18,7 @@ namespace winform1
         private Point m_mousePos;
         private bool m_isMouseDown;
         //要下载的文件的url
-        private const string m_url = "https://smallgame.download.lkgame.com/game_space/sfish/57/qgame_test/QQGameUnityDemo.zip";
+        private const string m_url = "https://codechina.csdn.net/linxinfa/winform-download-demo/-/raw/master/winform1/res/QQGameUnityDemo.zip";
         private const long m_totalSize = 21388019;
         private const string m_md5 = "44BB65977FBF90062E8A3F5521D84A11";