diff --git a/3-WPF命令.sln b/3-WPF命令.sln
index db64ee3..d1f5d24 100644
--- a/3-WPF命令.sln
+++ b/3-WPF命令.sln
@@ -16,6 +16,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "4-WPF资源-2资源层次",
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "4-WPF资源-1资源集合", "4-WPF资源-1资源集合\4-WPF资源-1资源集合.csproj", "{9799011A-197B-4934-A691-7D1CF799AFE7}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "4-WPF资源-3资源字典", "4-WPF资源-3资源字典\4-WPF资源-3资源字典.csproj", "{CB76C66A-B6F0-4CB3-AF3E-3DF9FE0D4FE3}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -54,5 +56,9 @@ Global
 		{9799011A-197B-4934-A691-7D1CF799AFE7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9799011A-197B-4934-A691-7D1CF799AFE7}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9799011A-197B-4934-A691-7D1CF799AFE7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CB76C66A-B6F0-4CB3-AF3E-3DF9FE0D4FE3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CB76C66A-B6F0-4CB3-AF3E-3DF9FE0D4FE3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CB76C66A-B6F0-4CB3-AF3E-3DF9FE0D4FE3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CB76C66A-B6F0-4CB3-AF3E-3DF9FE0D4FE3}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
diff --git a/4-WPF资源-3资源字典/4-WPF资源-3资源字典.csproj b/4-WPF资源-3资源字典/4-WPF资源-3资源字典.csproj
new file mode 100644
index 0000000..2f7fc16
--- /dev/null
+++ b/4-WPF资源-3资源字典/4-WPF资源-3资源字典.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net8.0-windows</TargetFramework>
+        <RootNamespace>_4_WPF资源_3资源字典</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/4-WPF资源-3资源字典/App.xaml b/4-WPF资源-3资源字典/App.xaml
new file mode 100644
index 0000000..6870d0b
--- /dev/null
+++ b/4-WPF资源-3资源字典/App.xaml
@@ -0,0 +1,13 @@
+<Application x:Class="_4_WPF资源_3资源字典.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <!-- 包含共享资源 -->
+                <ResourceDictionary Source="ImageBrushDictionary.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>
\ No newline at end of file
diff --git a/4-WPF资源-3资源字典/App.xaml.cs b/4-WPF资源-3资源字典/App.xaml.cs
new file mode 100644
index 0000000..e4e6cd3
--- /dev/null
+++ b/4-WPF资源-3资源字典/App.xaml.cs
@@ -0,0 +1,12 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace _4_WPF资源_3资源字典;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
+}
\ No newline at end of file
diff --git a/4-WPF资源-3资源字典/AssemblyInfo.cs b/4-WPF资源-3资源字典/AssemblyInfo.cs
new file mode 100644
index 0000000..4a05c7d
--- /dev/null
+++ b/4-WPF资源-3资源字典/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/4-WPF资源-3资源字典/ImageBrushDictionary.xaml b/4-WPF资源-3资源字典/ImageBrushDictionary.xaml
new file mode 100644
index 0000000..e769474
--- /dev/null
+++ b/4-WPF资源-3资源字典/ImageBrushDictionary.xaml
@@ -0,0 +1,5 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <ImageBrush x:Key="TileBrush" TileMode="Tile" ViewportUnits="Absolute" Viewport="0 0 32 32"
+                ImageSource="public/003540AH4M72.jpg" Opacity="0.3" />
+</ResourceDictionary>
\ No newline at end of file
diff --git a/4-WPF资源-3资源字典/MainWindow.xaml b/4-WPF资源-3资源字典/MainWindow.xaml
new file mode 100644
index 0000000..1eb1bbf
--- /dev/null
+++ b/4-WPF资源-3资源字典/MainWindow.xaml
@@ -0,0 +1,10 @@
+<Window x:Class="_4_WPF资源_3资源字典.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"
+        Title="MainWindow" Height="450" Width="800">
+
+    <StackPanel />
+</Window>
\ No newline at end of file
diff --git a/4-WPF资源-3资源字典/MainWindow.xaml.cs b/4-WPF资源-3资源字典/MainWindow.xaml.cs
new file mode 100644
index 0000000..b140e13
--- /dev/null
+++ b/4-WPF资源-3资源字典/MainWindow.xaml.cs
@@ -0,0 +1,19 @@
+using System.Windows;
+
+namespace _4_WPF资源_3资源字典;
+
+/// <summary>
+///     Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+
+        var resourceDictionary = new ResourceDictionary
+        {
+            Source = new Uri("ImageBrushDictionary.xaml", UriKind.Relative)
+        };
+    }
+}
\ No newline at end of file
diff --git a/4-WPF资源-3资源字典/public/003540AH4M72.jpg b/4-WPF资源-3资源字典/public/003540AH4M72.jpg
new file mode 100644
index 0000000..4aa96ac
Binary files /dev/null and b/4-WPF资源-3资源字典/public/003540AH4M72.jpg differ