python捕获ctrl+c手工中断程序

日常编写调试运行程序过程中，难免需要手动停止，以下两种方法可以捕获ctrl+c立即停止程序

1、使用python的异常KeyboardInterrupt

    try:
        while 1:
            pass
    except KeyboardInterrupt:
        pass

    def exit(signum, frame):
        print('You choose to stop me.')
        exit()
    signal.signal(signal.SIGINT, exit)
    signal.signal(signal.SIGTERM, exit)
    while 1:
        pass