如何通过检测按键来打破 Python 中的这个循环 [英] How to break this loop in Python by detecting key press

问题描述

from subprocess import call
try:
    while True:
        call (["raspivid -n -b 2666666.67 -t 5000 -o test.mp4"],shell=True)
        call (["raspivid -n -b 2666666.67 -t 5000 -o test1.mp4"],shell=True)
except KeyboardInterrupt:
    pass

我计划在按下任意按钮时打破循环.但是我尝试了很多方法来破解它，但都没有奏效.

I plan to make it breaking loop while I am pressing any button. However I tried lots of methods to break the and none of them worked.

推荐答案

你希望你的代码更像这样:

You want your code to be more like this:

from subprocess import call

while True:
    try:
        call(["raspivid -n -b 2666666.67 -t 5000 -o test.mp4"], shell=True)
        call(["raspivid -n -b 2666666.67 -t 5000 -o test1.mp4"], shell=True)
    except KeyboardInterrupt:
        break  # The answer was in the question!

您break一个完全符合您预期的循环.

You break a loop exactly how you would expect.

这篇关于如何通过检测按键来打破 Python 中的这个循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！