diff --git a/Task.cs b/Task.cs
index 9e1f0ff..a3b0f17 100644
--- a/Task.cs
+++ b/Task.cs
@@ -19,6 +19,7 @@ namespace VideoConcat
                         progressBar.Dispatcher.Invoke(() =>
                         {
                             progressBar.Value = i;
+                            
                         });
                     });
                     System.Threading.Thread.Sleep(50);
diff --git a/Video.xaml b/Video.xaml
index f8a05f4..7536aa6 100644
--- a/Video.xaml
+++ b/Video.xaml
@@ -9,10 +9,14 @@
         mc:Ignorable="d"
         Title="视频" Height="450" Width="800" WindowStartupLocation="CenterScreen" ResizeMode="NoResize" >
     <Grid>
-        <StackPanel>
-            <Button Content="开始拼接"  VerticalAlignment="Top" Height="30" Click="Button_Click" x:Name="startButton" Margin="5"/>
-            <TextBlock  Margin="5" TextWrapping="Wrap" Text="" Height="auto" x:Name="outputTxt"/>
+        <StackPanel Margin="10" >
+            <StackPanel Height="30" Margin="2"  Orientation="Horizontal" HorizontalAlignment="Left" >
+                <Label Content="生成视频的个数:" VerticalContentAlignment="Center" Width="auto" BorderBrush="#0000EE" BorderThickness="1"></Label>
+                <TextBox  Width="580"  AutomationProperties.HelpText="输入要生成的视频个数" Margin="10,0,10,0" InputScope="Number"></TextBox>
+                <Button Content="开始拼接"   Click="Button_Click" x:Name="startButton"   Width="auto"/>
+            </StackPanel>
+            <TextBox  Margin="2" TextWrapping="Wrap" Text="" Height="auto" x:Name="outputTxt"/>
         </StackPanel>
-            <ProgressBar x:Name="processVideoBar" Minimum="0" Maximum="100" Value="0" VerticalAlignment="Bottom" Height="10" Margin="5"/>
+        <ProgressBar x:Name="processVideoBar" Minimum="0" Maximum="100" Value="0" VerticalAlignment="Bottom" Height="10" Margin="5"/>
     </Grid>
 </Window>