diff --git a/MaterialTraceabilityUI/UserLogin.xaml.cs b/MaterialTraceabilityUI/UserLogin.xaml.cs
index 3c03f64..a0e2da4 100644
--- a/MaterialTraceabilityUI/UserLogin.xaml.cs
+++ b/MaterialTraceabilityUI/UserLogin.xaml.cs
@@ -109,6 +109,7 @@ namespace MaterialTraceabilityUI
             e.Handled = true;
         }
 
+        //禁止复制
         private void CommandBinding_Executed(object sender, ExecutedRoutedEventArgs e)
         {