diff --git a/3-WPF命令.sln b/3-WPF命令.sln
index 0b163bf..85393ca 100644
--- a/3-WPF命令.sln
+++ b/3-WPF命令.sln
@@ -30,6 +30,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5-WPF样式和行为-5多
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5-WPF样式和行为-6通过类型自动应用样式", "5-WPF样式和行为-6通过类型自动应用样式\5-WPF样式和行为-6通过类型自动应用样式.csproj", "{5C42CCDB-5FF0-48FB-AF36-B6280850C74C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "5-WPF样式和行为-7简单触发器", "5-WPF样式和行为-7简单触发器\5-WPF样式和行为-7简单触发器.csproj", "{0EEA474D-6C17-4361-8F9C-2DF43BA6DA06}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -96,5 +98,9 @@ Global
 		{5C42CCDB-5FF0-48FB-AF36-B6280850C74C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5C42CCDB-5FF0-48FB-AF36-B6280850C74C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5C42CCDB-5FF0-48FB-AF36-B6280850C74C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0EEA474D-6C17-4361-8F9C-2DF43BA6DA06}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0EEA474D-6C17-4361-8F9C-2DF43BA6DA06}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0EEA474D-6C17-4361-8F9C-2DF43BA6DA06}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0EEA474D-6C17-4361-8F9C-2DF43BA6DA06}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
diff --git a/5-WPF样式和行为-7简单触发器/5-WPF样式和行为-7简单触发器.csproj b/5-WPF样式和行为-7简单触发器/5-WPF样式和行为-7简单触发器.csproj
new file mode 100644
index 0000000..6a073a4
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/5-WPF样式和行为-7简单触发器.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net8.0-windows</TargetFramework>
+        <RootNamespace>_5_WPF样式和行为_7简单触发器</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/5-WPF样式和行为-7简单触发器/App.xaml b/5-WPF样式和行为-7简单触发器/App.xaml
new file mode 100644
index 0000000..348d18c
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="_5_WPF样式和行为_7简单触发器.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:_5_WPF样式和行为_7简单触发器"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
diff --git a/5-WPF样式和行为-7简单触发器/App.xaml.cs b/5-WPF样式和行为-7简单触发器/App.xaml.cs
new file mode 100644
index 0000000..06b79fb
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/App.xaml.cs
@@ -0,0 +1,12 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace _5_WPF样式和行为_7简单触发器;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
+}
\ No newline at end of file
diff --git a/5-WPF样式和行为-7简单触发器/AssemblyInfo.cs b/5-WPF样式和行为-7简单触发器/AssemblyInfo.cs
new file mode 100644
index 0000000..4a05c7d
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/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/5-WPF样式和行为-7简单触发器/MainWindow.xaml b/5-WPF样式和行为-7简单触发器/MainWindow.xaml
new file mode 100644
index 0000000..ac393db
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/MainWindow.xaml
@@ -0,0 +1,40 @@
+<Window x:Class="_5_WPF样式和行为_7简单触发器.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="_5_WPF样式和行为_7简单触发器" Height="450" Width="800">
+    <Window.Resources>
+        <Style x:Key="BigFontButton">
+            <Style.Setters>
+                <Setter Property="Control.FontFamily" Value="Times New Roman" />
+                <Setter Property="Control.FontSize" Value="18" />
+            </Style.Setters>
+
+            <Style.Triggers>
+                <!-- 获取焦点，或者使用tab键 -->
+                <Trigger Property="Control.IsFocused" Value="True">
+                    <Setter Property="Control.Foreground" Value="DarkRed" />
+                    <Setter Property="Control.Background" Value="SpringGreen" />
+                    <Setter Property="Control.FontSize" Value="20" />
+                    <Setter Property="Control.FontWeight" Value="ExtraBold" />
+                </Trigger>
+
+                <Trigger Property="Control.IsMouseOver" Value="True">
+                    <Setter Property="Control.Foreground" Value="OrangeRed" />
+                    <Setter Property="Control.FontWeight" Value="Light" />
+                </Trigger>
+
+                <Trigger Property="Button.IsPressed" Value="True">
+                    <Setter Property="Control.Foreground" Value="SkyBlue" />
+                </Trigger>
+            </Style.Triggers>
+
+        </Style>
+    </Window.Resources>
+
+    <StackPanel>
+        <Button Padding="15 5 " Margin="10" Style="{StaticResource BigFontButton}">o(*￣︶￣*)o</Button>
+    </StackPanel>
+</Window>
\ No newline at end of file
diff --git a/5-WPF样式和行为-7简单触发器/MainWindow.xaml.cs b/5-WPF样式和行为-7简单触发器/MainWindow.xaml.cs
new file mode 100644
index 0000000..302f73a
--- /dev/null
+++ b/5-WPF样式和行为-7简单触发器/MainWindow.xaml.cs
@@ -0,0 +1,23 @@
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace _5_WPF样式和行为_7简单触发器;
+
+/// <summary>
+/// Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+}
\ No newline at end of file
diff --git a/5-WPF样式和行为-7简单触发器/public/003540AH4M72.jpg b/5-WPF样式和行为-7简单触发器/public/003540AH4M72.jpg
new file mode 100644
index 0000000..4aa96ac
Binary files /dev/null and b/5-WPF样式和行为-7简单触发器/public/003540AH4M72.jpg differ