添加项目文件。

ExamplePlugins.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.10.34607.79
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HelloWorldPlugin", "HelloWorldPlugin\HelloWorldPlugin.csproj", "{8CC8827D-2BAB-4436-8084-7A8A6208A574}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8CC8827D-2BAB-4436-8084-7A8A6208A574}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8CC8827D-2BAB-4436-8084-7A8A6208A574}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8CC8827D-2BAB-4436-8084-7A8A6208A574}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8CC8827D-2BAB-4436-8084-7A8A6208A574}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {83776D0E-FC3A-485E-8A00-E719B1639D72}
+	EndGlobalSection
+EndGlobal

HelloWorldPlugin/HelloWorldPlugin.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+    <ImplicitUsings>enable</ImplicitUsings>
+	  <EnableDynamicLoading>True</EnableDynamicLoading>
+	  <PlatformTarget>x64</PlatformTarget>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ClassIsland.PluginSdk" Version="1.0.0">
+	    <ExcludeAssets>runtime</ExcludeAssets>
+    </PackageReference>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+  </ItemGroup>
+
+    <ItemGroup>
+	    <None Update="manifest.yml">
+		    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+	    </None>
+    </ItemGroup>
+
+</Project>

HelloWorldPlugin/Plugin.cs

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+using ClassIsland.Core.Abstractions;
+using ClassIsland.Core.Attributes;
+using ClassIsland.Core.Controls.CommonDialog;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace HelloWorldPlugin;
+
+[PluginEntrance]
+public class Plugin : PluginBase
+{
+    public override void Initialize(HostBuilderContext context, IServiceCollection services)
+    {
+        CommonDialog.ShowInfo("Hello world!");
+    }
+
+    public override void OnShutdown()
+    {
+    }
+}

HelloWorldPlugin/Properties/launchSettings.json

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+{
+  "profiles": {
+    "HelloWorldPlugin": {
+      "commandName": "Project"
+    },
+    "配置文件 1": {
+      "commandName": "Executable",
+      "executablePath": "E:\\Coding\\ClassIsland\\ClassIsland\\bin\\Debug\\net8.0-windows\\ClassIsland.exe",
+      "commandLineArgs": "-epp E:\\Coding\\ExamplePlugins\\HelloWorldPlugin\\bin\\Debug\\net8.0-windows",
+      "workingDirectory": "E:\\Coding\\ClassIsland\\ClassIsland\\bin\\Debug\\net8.0-windows\\"
+    }
+  }
+}

HelloWorldPlugin/manifest.yml

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+id: examples.helloworld
+name: Hello world!
+description: 在启动时弹出一个 “Hello world” 提示框。
+entranceAssembly: "HelloWorldPlugin.dll"
+url: https://github.com/ClassIsland/ExamplePlugins