diff --git a/Correlator/UserControlPage/AuditionUserControl.xaml.cs b/Correlator/UserControlPage/AuditionUserControl.xaml.cs
index 2f2e88c..a7c8c78 100644
--- a/Correlator/UserControlPage/AuditionUserControl.xaml.cs
+++ b/Correlator/UserControlPage/AuditionUserControl.xaml.cs
@@ -17,18 +17,6 @@
             var colorBrush = new SolidColorBrush(Color.FromArgb(255, 84, 84, 84));
             const double strokeThickness = 1.5;
 
-            //水平线
-            // TopHorizontalLineGrid.Children.Add(new Line
-            // {
-            //     X1 = 0,
-            //     Y1 = 0,
-            //     X2 = 1100,
-            //     Y2 = 0,
-            //     Stroke = colorBrush,
-            //     StrokeThickness = strokeThickness,
-            //     HorizontalAlignment = HorizontalAlignment.Center
-            // });
-
             //较高的刻度线
             for (var i = 0; i <= 1100; i += 100)
             {
@@ -60,18 +48,6 @@
                 TopHorizontalLineGrid.Children.Add(shorterScale);
             }
 
-            //水平线
-            // BottomHorizontalLineGrid.Children.Add(new Line
-            // {
-            //     X1 = 0,
-            //     Y1 = 0,
-            //     X2 = 1100,
-            //     Y2 = 0,
-            //     Stroke = colorBrush,
-            //     StrokeThickness = strokeThickness,
-            //     HorizontalAlignment = HorizontalAlignment.Center
-            // });
-
             //较高的刻度线
             for (var i = 0; i <= 1100; i += 100)
             {

diff --git a/Correlator/UserControlPage/AuditionUserControl.xaml.cs b/Correlator/UserControlPage/AuditionUserControl.xaml.cs
index 2f2e88c..a7c8c78 100644
--- a/Correlator/UserControlPage/AuditionUserControl.xaml.cs
+++ b/Correlator/UserControlPage/AuditionUserControl.xaml.cs
@@ -17,18 +17,6 @@
             var colorBrush = new SolidColorBrush(Color.FromArgb(255, 84, 84, 84));
             const double strokeThickness = 1.5;
 
-            //水平线
-            // TopHorizontalLineGrid.Children.Add(new Line
-            // {
-            //     X1 = 0,
-            //     Y1 = 0,
-            //     X2 = 1100,
-            //     Y2 = 0,
-            //     Stroke = colorBrush,
-            //     StrokeThickness = strokeThickness,
-            //     HorizontalAlignment = HorizontalAlignment.Center
-            // });
-
             //较高的刻度线
             for (var i = 0; i <= 1100; i += 100)
             {
@@ -60,18 +48,6 @@
                 TopHorizontalLineGrid.Children.Add(shorterScale);
             }
 
-            //水平线
-            // BottomHorizontalLineGrid.Children.Add(new Line
-            // {
-            //     X1 = 0,
-            //     Y1 = 0,
-            //     X2 = 1100,
-            //     Y2 = 0,
-            //     Stroke = colorBrush,
-            //     StrokeThickness = strokeThickness,
-            //     HorizontalAlignment = HorizontalAlignment.Center
-            // });
-
             //较高的刻度线
             for (var i = 0; i <= 1100; i += 100)
             {
diff --git a/Correlator/ViewModel/HomePageViewModel.cs b/Correlator/ViewModel/HomePageViewModel.cs
index 98fcb7e..e92a5c4 100644
--- a/Correlator/ViewModel/HomePageViewModel.cs
+++ b/Correlator/ViewModel/HomePageViewModel.cs
@@ -826,7 +826,7 @@
             InterfereValue = "未设置";
             PassTime = "0";
             //复位时将波形图数据清空
-            ColumnValues.Clear();
+            ColumnValues?.Clear();
             _runningSeconds = 0;
             _runningTimer.Stop();
         }