一个C#小程序，让程序运行时禁止关机，通过单击按钮来实现禁止关机，当然也可解除这个命令，恢复Windows操作，示例运行截图如上所示-A C# program, procedures prohibit shutdown runtime, by clicking the button to achieve a ban on shutdown, of course, also be released this command to restore the Windows operating scre