使用 while 的等待函数 [英] wait function that uses while

问题描述

我刚刚写了一个看起来像这样的函数:

I just wrote a function that looked like this:

def block_for(seconds):
    """Wait at least seconds, this function should not be affected by the computer sleeping."""
    end_time = datetime.datetime.now() + datetime.timedelta(seconds)

    while datetime.datetime.now() < end_time:
        pass

这有什么不好的吗?理想情况下，while 循环中应该有什么东西吗?

Can anything bad come of this? Should there ideally be something inside the while loop?

推荐答案

也许将 time.sleep(1) 放在 while 循环中会需要更少的周期?或者

maybe putting time.sleep(1) in the while loop will require less cycles? Or

def block_for(seconds):
    """Wait at least seconds, this function should not be affected by the computer sleeping."""
    end_time = datetime.datetime.now() + datetime.timedelta(seconds=seconds)

    while datetime.datetime.now() < end_time - datetime.timedelta(seconds=1):
        time.sleep(1)

    while datetime.datetime.now() < end_time:
        pass

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