[C#]限制程序只能运行一個实例 （防多开）

Process[] processes = Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName); // no ".exe"
    if (processes.Length > 1)
    {
      log.Fatal("Another instance is running.");
      Environment.Exit(1);
    }
               

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如果想自动关闭窗口，只需要更改为：

Process[] processes = Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName); // no ".exe"
    if (processes.Length > 1)
    {
      log.Fatal("Another instance is running.");
      Environment.Exit(0);
    }
             

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