diff --git a/MainWindow.xaml b/MainWindow.xaml
index f8e8097..a8781b7 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -48,9 +48,12 @@
         </Style>
     </mah:MetroWindow.Resources>
     <Grid>
-        <RadioButton Content="查询" Tag="&#xf15c;" HorizontalAlignment="Left" Height="55" Margin="0,190,0,0" VerticalAlignment="Top" Width="150" Background="#FF66CCFF" Style="{DynamicResource RadioButtonStyle}"/>
-        <RadioButton Content="统计" Tag="&#xf00b;" HorizontalAlignment="Left" Height="55" Margin="0,245,0,0" VerticalAlignment="Top" Width="150" Background="#FF66CCFF" Style="{DynamicResource RadioButtonStyle}"/>
-        <RadioButton Content="退出" Tag="&#xf08b;" HorizontalAlignment="Left" Height="55" Margin="0,675,0,0" VerticalAlignment="Top" Width="150" Background="#FF66CCFF" Style="{DynamicResource RadioButtonStyle}"/>
+
+        <Rectangle HorizontalAlignment="Left" Height="915" Margin="0,190,0,0" Fill="#FFCCCCCC" VerticalAlignment="Top" Width="150"/>
+        <RadioButton Content="查询" Tag="&#xF15C;" HorizontalAlignment="Left" Height="55" Margin="0,190,0,0" VerticalAlignment="Top" Width="150" Background="#FFCCCCCC" Style="{DynamicResource RadioButtonStyle}"/>
+        <RadioButton Content="统计" Tag="&#xF00B;" HorizontalAlignment="Left" Height="55" Margin="0,265,0,0" VerticalAlignment="Top" Width="150" Background="#FFCCCCCC" Style="{DynamicResource RadioButtonStyle}"/>
+        <RadioButton Content="退出" Tag="&#xF08B;" HorizontalAlignment="Left" Height="55" Margin="0,720,0,0" VerticalAlignment="Top" Width="150" Background="#FFCCCCCC" Style="{DynamicResource RadioButtonStyle}"/>
+
 
     </Grid>
 </mah:MetroWindow>
\ No newline at end of file