python - 如何使用键盘按下事件停止 itertools.count() ？

Question

在下面的程序中

import itertools
for i in itertools.count():
    print (i)

我想使用键盘按下事件来停止此事件。

Answer 1

您可以等待KeyboardInterrupt异常然后退出:

import itertools

try:
    # Stay inside the loop until Ctrl+C is pressed
    for i in itertools.count():
        print (i)
except KeyboardInterrupt:
    pass
# Go on...