主程序结束时如何终止线程?

问题描述

如果我在无限循环中有一个线程，有没有办法在主程序结束时终止它(例如，当我按 + )?

If I have a thread in an infinite loop, is there a way to terminate it when the main program ends (for example, when I press +)?

推荐答案

选中此问题.正确答案对如何以正确的方式终止线程有很好的解释:是否有任何方法可以杀死Python中的线程?

Check this question. The correct answer has great explanation on how to terminate threads the right way:Is there any way to kill a Thread in Python?

要使线程在键盘中断信号(ctrl + c)上停止，您可以在退出之前捕获异常"KeyboardInterrupt"并进行清除.像这样:

To make the thread stop on Keyboard Interrupt signal (ctrl+c) you can catch the exception "KeyboardInterrupt" and cleanup before exiting. Like this:

try:
    start_thread()
except (KeyboardInterrupt, SystemExit):
    cleanup_stop_thread()
    sys.exit()

这样，您可以控制程序突然终止时的操作.

This way you can control what to do whenever the program is abruptly terminated.

您还可以使用内置的信号模块，该模块允许您设置信号处理程序(在您的特定情况下为SIGINT信号): http://docs.python.org/library/signal.html

You can also use the built-in signal module that lets you setup signal handlers (in your specific case the SIGINT signal): http://docs.python.org/library/signal.html

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