diff --git a/AIStudio.Wpf.DiagramApp/AIStudio.Wpf.DiagramApp.csproj b/AIStudio.Wpf.DiagramApp/AIStudio.Wpf.DiagramApp.csproj
index 99396ed..f92da9e 100644
--- a/AIStudio.Wpf.DiagramApp/AIStudio.Wpf.DiagramApp.csproj
+++ b/AIStudio.Wpf.DiagramApp/AIStudio.Wpf.DiagramApp.csproj
@@ -109,6 +109,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="AIStudio.Wpf.ComeCapture" Version="1.1.0" />
     <PackageReference Include="Costura.Fody" Version="5.7.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/AIStudio.Wpf.DiagramApp/ViewModels/MainWindowViewModel.cs b/AIStudio.Wpf.DiagramApp/ViewModels/MainWindowViewModel.cs
index 92ea1cb..bb4b657 100644
--- a/AIStudio.Wpf.DiagramApp/ViewModels/MainWindowViewModel.cs
+++ b/AIStudio.Wpf.DiagramApp/ViewModels/MainWindowViewModel.cs
@@ -377,6 +377,15 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
                 return this._aboutCommand ?? (this._aboutCommand = new DelegateCommand(() => this.AboutExecuted()));
             }
         }
+
+        private ICommand _screenshotCommand;
+        public ICommand ScreenshotCommand
+        {
+            get
+            {
+                return this._screenshotCommand ?? (this._screenshotCommand = new DelegateCommand(() => this.ScreenshotExecuted()));
+            }
+        }     
         #endregion
 
         public ItemActionCallback ClosingTabItemHandler
@@ -676,6 +685,12 @@ namespace AIStudio.Wpf.DiagramApp.ViewModels
             aboutWindow.ShowDialog();
         }
 
+        private void ScreenshotExecuted()
+        {
+            AIStudio.Wpf.ComeCapture.MainWindow window = new AIStudio.Wpf.ComeCapture.MainWindow();
+            window.Show();
+        }
+
         #region 方法
         private Color[] GenerateStandardGradients()
         {
diff --git a/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml b/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
index 5bc69f8..225b18c 100644
--- a/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
+++ b/AIStudio.Wpf.DiagramApp/Views/MainWindow.xaml
@@ -1465,47 +1465,7 @@
                                               Width="190" />
                         </Fluent:SplitButton.ToolTip>
                     </Fluent:SplitButton>
-                </Fluent:RibbonGroupBox>
-                <Fluent:RibbonGroupBox Header="其它"
-                                       IsLauncherVisible="True"   >
-                    <Fluent:Button Header="搜索" Width="50" VerticalAlignment="Top" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}">
-                        <Fluent:Button.LargeIcon>
-                            <iconPacks:PackIconFontAwesome Kind="SearchSolid" VerticalAlignment="Center" HorizontalAlignment="Center"/>
-                        </Fluent:Button.LargeIcon>
-                    </Fluent:Button>
-                    <Border BorderBrush="Gray" BorderThickness="1" CornerRadius="3" VerticalAlignment="Top" Margin="0,8,0,0">
-                        <Grid>
-                            <Grid.RowDefinitions>
-                                <RowDefinition Height="24"/>
-                                <RowDefinition Height="24"/>
-                            </Grid.RowDefinitions>
-                            <Grid.ColumnDefinitions>
-                                <ColumnDefinition Width="*"/>
-                                <ColumnDefinition Width="Auto"/>
-                                <ColumnDefinition Width="Auto"/>
-                            </Grid.ColumnDefinitions>
-                            <TextBox x:Name="txtsearch" Text="{Binding PageViewModel.DiagramViewModel.SearchText}" VerticalContentAlignment="Center" BorderThickness="0" Background="Transparent">
-                                <TextBox.InputBindings>
-                                    <KeyBinding Key="Enter" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}"/>
-                                </TextBox.InputBindings>
-                                <i:Interaction.Triggers>
-                                    <i:EventTrigger EventName="LostFocus">
-                                        <i:InvokeCommandAction Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}"/>
-                                    </i:EventTrigger>
-                                </i:Interaction.Triggers>
-                            </TextBox>
-                            <Line X1="0" Y1="0" X2="0" Y2="100" Stroke="Gray"  StrokeThickness="0.5" HorizontalAlignment="Right"></Line>
-                            <Button Grid.Column="1" Padding="6,0" Style="{StaticResource FlatButtonStyle}" Command="{Binding PageViewModel.DiagramViewModel.SearchUpCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}">
-                                <Path Width="10" Height="10" Stretch="Uniform" Fill="Black" Data="M17,13.41,12.71,9.17a1,1,0,0,0-1.42,0L7.05,13.41a1,1,0,0,0,0,1.42,1,1,0,0,0,1.41,0L12,11.29l3.54,3.54a1,1,0,0,0,.7.29,1,1,0,0,0,.71-.29A1,1,0,0,0,17,13.41Z"></Path>
-                            </Button>
-                            <Button Grid.Column="2" Padding="6,0" Style="{StaticResource FlatButtonStyle}" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}">
-                                <Path Width="10" Height="10" Stretch="Uniform" Fill="Black" Data="M17,9.17a1,1,0,0,0-1.41,0L12,12.71,8.46,9.17a1,1,0,0,0-1.41,0,1,1,0,0,0,0,1.42l4.24,4.24a1,1,0,0,0,1.42,0L17,10.59A1,1,0,0,0,17,9.17Z"></Path>
-                            </Button>
-                            <Line X1="0" Y1="0" X2="150" Y2="0" Stroke="Gray"  StrokeThickness="0.5" VerticalAlignment="Bottom" Grid.ColumnSpan="3"></Line>
-                            <TextBlock Grid.Row="1" Grid.ColumnSpan="3" Margin="2,0,0,0" VerticalAlignment="Center" Text="{Binding PageViewModel.DiagramViewModel.SearchInfo}"/>
-                        </Grid>
-                    </Border>
-                </Fluent:RibbonGroupBox>
+                </Fluent:RibbonGroupBox>               
             </Fluent:RibbonTabItem>
             <Fluent:RibbonTabItem Header="页面布局">
                 <Fluent:RibbonGroupBox Header="页面"
@@ -2263,7 +2223,12 @@
                                               Text="全选"
                                               Width="190" />
                         </Fluent:SplitButton.ToolTip>
-                    </Fluent:SplitButton>
+                    </Fluent:SplitButton>                   
+                </Fluent:RibbonGroupBox>
+            </Fluent:RibbonTabItem>
+            <Fluent:RibbonTabItem Header="视图">
+                <Fluent:RibbonGroupBox Header="适应窗口"
+                                       IsLauncherVisible="True"   >
                     <Fluent:Button Header="居中" Width="50" VerticalAlignment="Top" Command="{Binding PageViewModel.DiagramViewModel.CenterMoveCommand}">
                         <Fluent:Button.LargeIcon>
                             <iconPacks:PackIconMaterial Kind="ImageFilterCenterFocus" VerticalAlignment="Center" HorizontalAlignment="Center"/>
@@ -2288,6 +2253,60 @@
                             <Path Width="18" Height="18" Stretch="Uniform" Fill="Black" Data="M819.198 910.218 204.799 910.218c-50.267 0-91.022-40.75-91.022-91.02L113.777 204.822c0-50.29 40.755-91.045 91.022-91.045l614.398 0c50.27 0 91.02 40.755 91.02 91.045l0 614.376C910.218 869.468 869.468 910.218 819.198 910.218zM841.953 227.554c0-25.122-20.385-45.51-45.51-45.51L227.554 182.044c-25.122 0-45.51 20.387-45.51 45.51l0 568.889c0 25.125 20.387 45.535 45.51 45.535l568.889 0c25.125 0 45.51-20.39 45.51-45.535L841.953 227.554zM603.268 400.952l-57.14-57.115 0 335.802 55.505-55.5c13.335-13.31 34.93-13.335 48.265 0 13.33 13.335 13.33 34.95 0 48.29l-105.77 105.765c-1.615 3.415-3.525 6.78-6.37 9.625-7.1 7.08-16.475 10.1-25.76 9.67-9.262 0.46-18.66-2.59-25.76-9.69-2.842-2.85-4.8-6.15-6.347-9.58l-105.79-105.79c-13.335-13.34-13.335-34.955 0-48.29 13.332-13.31 34.927-13.335 48.262 0l55.502 55.5L477.865 343.837l-57.117 57.115c-13.335 13.357-34.952 13.335-48.287 0s-13.335-34.93 0-48.265l115.395-115.37c13.332-13.335 34.927-13.357 48.262 0l115.395 115.37c13.335 13.335 13.335 34.952 0 48.265C638.198 414.286 616.583 414.286 603.268 400.952z"></Path>
                         </Fluent:Button.LargeIcon>
                     </Fluent:Button>
+                </Fluent:RibbonGroupBox>               
+            </Fluent:RibbonTabItem>
+            <Fluent:RibbonTabItem Header="高级">
+                <Fluent:RibbonGroupBox Header="查找"
+                                       IsLauncherVisible="True"   >
+                    <Fluent:Button Header="搜索" Width="50" VerticalAlignment="Top" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}">
+                        <Fluent:Button.LargeIcon>
+                            <iconPacks:PackIconFontAwesome Kind="SearchSolid" VerticalAlignment="Center" HorizontalAlignment="Center"/>
+                        </Fluent:Button.LargeIcon>
+                    </Fluent:Button>
+                    <Border BorderBrush="Gray" BorderThickness="1" CornerRadius="3" VerticalAlignment="Top" Margin="0,8,0,0">
+                        <Grid>
+                            <Grid.RowDefinitions>
+                                <RowDefinition Height="24"/>
+                                <RowDefinition Height="24"/>
+                            </Grid.RowDefinitions>
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="*"/>
+                                <ColumnDefinition Width="Auto"/>
+                                <ColumnDefinition Width="Auto"/>
+                            </Grid.ColumnDefinitions>
+                            <TextBox x:Name="txtsearch" Text="{Binding PageViewModel.DiagramViewModel.SearchText}" VerticalContentAlignment="Center" BorderThickness="0" Background="Transparent">
+                                <TextBox.InputBindings>
+                                    <KeyBinding Key="Enter" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}"/>
+                                </TextBox.InputBindings>
+                                <i:Interaction.Triggers>
+                                    <i:EventTrigger EventName="LostFocus">
+                                        <i:InvokeCommandAction Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}"/>
+                                    </i:EventTrigger>
+                                </i:Interaction.Triggers>
+                            </TextBox>
+                            <Line X1="0" Y1="0" X2="0" Y2="100" Stroke="Gray"  StrokeThickness="0.5" HorizontalAlignment="Right"></Line>
+                            <Button Grid.Column="1" Padding="6,0" Style="{StaticResource FlatButtonStyle}" Command="{Binding PageViewModel.DiagramViewModel.SearchUpCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}">
+                                <Path Width="10" Height="10" Stretch="Uniform" Fill="Black" Data="M17,13.41,12.71,9.17a1,1,0,0,0-1.42,0L7.05,13.41a1,1,0,0,0,0,1.42,1,1,0,0,0,1.41,0L12,11.29l3.54,3.54a1,1,0,0,0,.7.29,1,1,0,0,0,.71-.29A1,1,0,0,0,17,13.41Z"></Path>
+                            </Button>
+                            <Button Grid.Column="2" Padding="6,0" Style="{StaticResource FlatButtonStyle}" Command="{Binding PageViewModel.DiagramViewModel.SearchDownCommand}" CommandParameter="{Binding ElementName=txtsearch,Path=Text}">
+                                <Path Width="10" Height="10" Stretch="Uniform" Fill="Black" Data="M17,9.17a1,1,0,0,0-1.41,0L12,12.71,8.46,9.17a1,1,0,0,0-1.41,0,1,1,0,0,0,0,1.42l4.24,4.24a1,1,0,0,0,1.42,0L17,10.59A1,1,0,0,0,17,9.17Z"></Path>
+                            </Button>
+                            <Line X1="0" Y1="0" X2="150" Y2="0" Stroke="Gray"  StrokeThickness="0.5" VerticalAlignment="Bottom" Grid.ColumnSpan="3"></Line>
+                            <TextBlock Grid.Row="1" Grid.ColumnSpan="3" Margin="2,0,0,0" VerticalAlignment="Center" Text="{Binding PageViewModel.DiagramViewModel.SearchInfo}"/>
+                        </Grid>
+                    </Border>
+                </Fluent:RibbonGroupBox>
+                <Fluent:RibbonGroupBox Header="其他">
+                    <Fluent:Button Header="截屏" Width="50" VerticalAlignment="Top" Command="{Binding ScreenshotCommand}">
+                        <Fluent:Button.LargeIcon>
+                            <Path  Width="18" Height="18" Stretch="Uniform" Fill="Black" Data="M810.666667 597.333333h-85.333334v128h-128v85.333334h128v128h85.333334v-128h128v-85.333334h-128zM128 768a42.666667 42.666667 0 0 0 42.666667 42.666667h128v-85.333334H213.333333v-85.333333H128v128zM810.666667 170.666667a42.666667 42.666667 0 0 0-42.666667-42.666667h-128v85.333333h85.333333v85.333334h85.333334V170.666667zM213.333333 213.333333h85.333334V128H170.666667a42.666667 42.666667 0 0 0-42.666667 42.666667v128h85.333333V213.333333zM128 384h85.333333v170.666667H128z m597.333333 0h85.333334v128h-85.333334zM384 128h170.666667v85.333333H384z m0 597.333333h128v85.333334H384z"/>
+                        </Fluent:Button.LargeIcon>
+                        <Fluent:Button.ToolTip>
+                            <Fluent:ScreenTip Title="Screen"
+                                              Text="截屏"
+                                              Width="190" />
+                        </Fluent:Button.ToolTip>
+                    </Fluent:Button>
                 </Fluent:RibbonGroupBox>
             </Fluent:RibbonTabItem>
             <Fluent:RibbonTabItem Header="帮助">
diff --git a/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs b/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
index 316f267..39aaeb6 100644
--- a/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
+++ b/AIStudio.Wpf.DiagramDesigner/Controls/ZoomBox.cs
@@ -188,7 +188,7 @@ namespace AIStudio.Wpf.DiagramDesigner
                         (this.ScrollViewer.ViewportHeight * fitViewModel.PaddingRate) / fitViewModel.BoundingRect.Height
                         );
                 }
-              
+
                 double xOffset, yOffset;
                 xOffset = fitViewModel.BoundingRect.Left * ZoomValue - (this.ScrollViewer.ViewportWidth - fitViewModel.BoundingRect.Width * ZoomValue) / 2;
                 yOffset = fitViewModel.BoundingRect.Top * ZoomValue - (this.ScrollViewer.ViewportHeight - fitViewModel.BoundingRect.Height * ZoomValue) / 2;
@@ -240,6 +240,7 @@ namespace AIStudio.Wpf.DiagramDesigner
 
         }
 
+        private static object thisLock = new Object();
         private void ZoomSlider_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
         {
             double scale = e.NewValue / e.OldValue;
diff --git a/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml b/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
index 20ccf8d..ad7df7d 100644
--- a/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
+++ b/AIStudio.Wpf.DiagramDesigner/Styles/ZoomBox.xaml
@@ -214,7 +214,7 @@
                                             Maximum="{Binding MaximumZoomValue,RelativeSource={RelativeSource Mode=TemplatedParent},Mode=TwoWay}" 
                                             SmallChange="0.25"
                                             LargeChange="0.25"
-                                            Value="{Binding ZoomValue,RelativeSource={RelativeSource Mode=TemplatedParent},Mode=TwoWay}"                                      
+                                            Value="{Binding ZoomValue,RelativeSource={RelativeSource Mode=TemplatedParent},Mode=TwoWay,Delay=500}"                                      
                                             IsSnapToTickEnabled="True"
                                             IsMoveToPointEnabled="False" />
 
diff --git a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramViewModel.cs b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramViewModel.cs
index 0018811..b5a2f27 100644
--- a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramViewModel.cs
+++ b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramViewModel.cs
@@ -424,7 +424,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
-        private double _minimumZoomValue = 0.01;
+        private double _minimumZoomValue = 0.1;
         [Browsable(false)]
         public double MinimumZoomValue
         {
@@ -2669,17 +2669,26 @@ namespace AIStudio.Wpf.DiagramDesigner
         #region 适应大小
         private void ExecuteFitAutoCommand(object parameter)
         {
-            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitAuto };
+            if (Items.Any())
+            {
+                FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitAuto };
+            }
         }
 
         private void ExecuteFitWidthCommand(object parameter)
         {
-            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitWidth };
+            if (Items.Any())
+            {
+                FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitWidth };
+            }
         }
 
         private void ExecuteFitHeightCommand(object parameter)
         {
-            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitHeight };
+            if (Items.Any())
+            {
+                FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitHeight };
+            }
         }
         #endregion
 
@@ -2884,8 +2893,8 @@ namespace AIStudio.Wpf.DiagramDesigner
                 {
                     Dictionary<SelectableDesignerItemViewModelBase, Tuple<object, object, object, object>> infos
                         = items.ToDictionary(p => p, p => new Tuple<object, object, object, object>(
-                            p.FontViewModel.GetPropertyValue("FontColor"), 
-                            p.ColorViewModel.GetPropertyValue("FillColor"), 
+                            p.FontViewModel.GetPropertyValue("FontColor"),
+                            p.ColorViewModel.GetPropertyValue("FillColor"),
                             p.ColorViewModel.GetPropertyValue("LineColor"),
                             p.ColorViewModel.GetPropertyValue("LineWidth")));
                     DoCommandManager.DoNewCommand(this.ToString(),