这是一个C++写的重启电脑函数，直接copy在程序中就可以直接使用了，很简单。在重启之前还会提示用户是否真的要重启电脑。-This is a C++ to write a function to restart the computer, copy directly in the program can be used directly, and very simple. Will prompt the user before restarting really want to restart