下周五如何计算？ [英] How to calculate next Friday?

问题描述

如何计算下一个星期五的日期？

How can I calculate the date of the next Friday?

推荐答案

首先，您需要 datetime 库：

import datetime

然后您需要一个开始日期；就是今天。

Then you need a starting date; that is, today.

d = datetime.date.today()

从那里开始，您要一直前进直到到达星期五。 date.weekday 方法将星期一至星期日表示为0到6，因此：

Starting from there, you'll want to keep going forward until you reach Friday. The date.weekday method represents Monday through Sunday as 0 through 6, so:

while d.weekday() != 4:

如果当前日期不是星期五，则必须一次添加一天。要将时间间隔添加到 date 对象，请使用 timedelta 对象。

If the current day isn't Friday, you'll have to add a day, one at a time. To add an interval of time to a date object, you use a timedelta object.

    d += datetime.timedelta(1)

将它们放在一起，然后 d 最终将包含一个表示下星期五的 date 对象。注意，如果今天是星期五，则此代码将在今天产生；如果需要下周五进行生产，则可以对其进行调整。

Put it all together, and d will ultimately contain a date object representing next Friday. Note that if today is Friday, this code will produce today; you can tweak it if you need it to produce next Friday instead.

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