diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 533aab2..e4894e7 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -43,7 +43,7 @@ namespace Audit
         private void Help(object sender, RoutedEventArgs e)
         {
             Windows.help help = new Windows.help();
-            help.Show();//实例化并打开信息窗口              
+            help.ShowDialog();//实例化并置顶打开信息窗口              
         }
 
         private void RadioButton_Checked(object sender, RoutedEventArgs e)