diff --git a/3-WPF命令.sln b/3-WPF命令.sln
index fc7dd1b..a6ec439 100644
--- a/3-WPF命令.sln
+++ b/3-WPF命令.sln
@@ -4,6 +4,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "3-WPF命令", "3-WPF命令\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "3-WPF命令2", "3-WPF命令2\3-WPF命令2.csproj", "{14E5DFE3-41DE-45F5-94BC-D09C7B8B3C4D}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "3-WPF命令3-使用命令源", "3-WPF命令3-使用命令源\3-WPF命令3-使用命令源.csproj", "{525781C0-0DB9-41F4-87C5-CECF7261ED25}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -18,5 +20,9 @@ Global
 		{14E5DFE3-41DE-45F5-94BC-D09C7B8B3C4D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{14E5DFE3-41DE-45F5-94BC-D09C7B8B3C4D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{14E5DFE3-41DE-45F5-94BC-D09C7B8B3C4D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{525781C0-0DB9-41F4-87C5-CECF7261ED25}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{525781C0-0DB9-41F4-87C5-CECF7261ED25}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{525781C0-0DB9-41F4-87C5-CECF7261ED25}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{525781C0-0DB9-41F4-87C5-CECF7261ED25}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
diff --git a/3-WPF命令3-使用命令源/3-WPF命令3-使用命令源.csproj b/3-WPF命令3-使用命令源/3-WPF命令3-使用命令源.csproj
new file mode 100644
index 0000000..a6313ed
--- /dev/null
+++ b/3-WPF命令3-使用命令源/3-WPF命令3-使用命令源.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net8.0-windows</TargetFramework>
+        <RootNamespace>_3_WPF命令3_使用命令源</RootNamespace>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <UseWPF>true</UseWPF>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Resource Include="public\003540AH4M72.jpg">
+            <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+        </Resource>
+    </ItemGroup>
+
+</Project>
diff --git a/3-WPF命令3-使用命令源/App.xaml b/3-WPF命令3-使用命令源/App.xaml
new file mode 100644
index 0000000..d315582
--- /dev/null
+++ b/3-WPF命令3-使用命令源/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="_3_WPF命令3_使用命令源.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:_3_WPF命令3_使用命令源"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
diff --git a/3-WPF命令3-使用命令源/App.xaml.cs b/3-WPF命令3-使用命令源/App.xaml.cs
new file mode 100644
index 0000000..b80cfe3
--- /dev/null
+++ b/3-WPF命令3-使用命令源/App.xaml.cs
@@ -0,0 +1,12 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace _3_WPF命令3_使用命令源;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
+}
\ No newline at end of file
diff --git a/3-WPF命令3-使用命令源/AssemblyInfo.cs b/3-WPF命令3-使用命令源/AssemblyInfo.cs
new file mode 100644
index 0000000..4a05c7d
--- /dev/null
+++ b/3-WPF命令3-使用命令源/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+    //(used if a resource is not found in the page,
+    // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+    //(used if a resource is not found in the page,
+    // app, or any theme specific resource dictionaries)
+)]
\ No newline at end of file
diff --git a/3-WPF命令3-使用命令源/MainWindow.xaml b/3-WPF命令3-使用命令源/MainWindow.xaml
new file mode 100644
index 0000000..18c6f5d
--- /dev/null
+++ b/3-WPF命令3-使用命令源/MainWindow.xaml
@@ -0,0 +1,21 @@
+<Window x:Class="_3_WPF命令3_使用命令源.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d"
+        Icon="public/003540AH4M72.jpg" Title="_3_WPF命令3_使用命令源" Height="450" Width="800">
+    <Window.CommandBindings>
+        <CommandBinding Command="New" Executed="New_Executed" />
+    </Window.CommandBindings>
+
+    <StackPanel>
+        <Menu>
+            <MenuItem Header="文件">
+                <MenuItem Command="New" />
+            </MenuItem>
+        </Menu>
+
+        <Button Command="New" Content="{x:Static ApplicationCommands.New}" />
+    </StackPanel>
+</Window>
\ No newline at end of file
diff --git a/3-WPF命令3-使用命令源/MainWindow.xaml.cs b/3-WPF命令3-使用命令源/MainWindow.xaml.cs
new file mode 100644
index 0000000..2f722e6
--- /dev/null
+++ b/3-WPF命令3-使用命令源/MainWindow.xaml.cs
@@ -0,0 +1,20 @@
+using System.Windows;
+using System.Windows.Input;
+
+namespace _3_WPF命令3_使用命令源;
+
+/// <summary>
+///     Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+
+    private void New_Executed(object sender, ExecutedRoutedEventArgs e)
+    {
+        MessageBox.Show("New command executed!");
+    }
+}
\ No newline at end of file
diff --git a/3-WPF命令3-使用命令源/public/003540AH4M72.jpg b/3-WPF命令3-使用命令源/public/003540AH4M72.jpg
new file mode 100644
index 0000000..4aa96ac
Binary files /dev/null and b/3-WPF命令3-使用命令源/public/003540AH4M72.jpg differ