// 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();