自定义周起始计算日期所在周

一路向北漂

于 2024-03-22 13:58:01 发布

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文章标签： java 前端 javascript

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本文链接：https://blog.youkuaiyun.com/u014144816/article/details/136939128

版权

本文介绍了如何使用Python编写一个名为defcustom_week_number的函数，该函数根据给定的日期和一周的起始日（默认为星期五），计算并返回该日期所在的周数，包括年份和两位数的周数表示。

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def custom_week_number(date, week_start=5):
    """
    计算所在的周
    date :所取的日期
    week_start :周几算一周的第一天
    """
    # 计算当天离周一的天数，找到周一开始
    day_week = date.isoweekday()
    diff = day_week - week_start
    if diff < 0:
        week_start_day = date - datetime.timedelta(days=7 + diff)
    else:
        week_start_day = date - datetime.timedelta(days=diff)
    # 开始日期距当前多少天，计算周期
    year_start_date = datetime.datetime(week_start_day.year, 1, 1)
    week_number = (week_start_day - year_start_date).days // 7 + 1
    return week_start_day.year, str(week_number).zfill(2)