修改

Install/Install.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <ApplicationIcon>open-box.ico</ApplicationIcon>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Content Include="open-box.ico" />
+  </ItemGroup>
+
+</Project>

Install/Program.cs

@@ -0,0 +1,23 @@
+// See https://aka.ms/new-console-template for more information
+using System.Diagnostics;
+
+string currentDir = Directory.GetCurrentDirectory();
+DirectoryInfo dirInfo = new DirectoryInfo(currentDir);
+
+foreach (var subdir in dirInfo.GetDirectories())
+{
+    FileInfo[] files = subdir.GetFiles();
+
+    foreach (FileInfo file in files)
+    {
+        if (file.Name == "Start.exe")
+        {
+            string startPath = Path.Combine(subdir.FullName, "Start.exe");
+            Process.Start(startPath);
+            return;
+        }
+    }
+}
+
+Console.WriteLine("当前目录子文件中未找到Start.exe，程序即将退出...");
+Console.ReadLine();