​Python-时间及日期-07-获取本周或上周几具体日期

import datetime


def get_current_weekday(n):
    today_info = datetime.date.today()
    print("今天是：", today_info)
    today_n = today_info.weekday()

    day_n = today_info
    one_day = datetime.timedelta(days=1)

    if today_n < n:
        while day_n.weekday() != n:
            day_n += one_day
    else:
        while day_n.weekday() != n:
            day_n -= one_day

    return day_n


current_week_day = get_current_weekday(3)
print("本周周四是：", current_week_day)

import datetime


def get_last_wek_weekday(n):
    today_info = datetime.date.today()
    print("今天是：", today_info)

    one_day = datetime.timedelta(days=1)
    seven_day = datetime.timedelta(days=7)

    last_week_day = today_info - seven_day
    last_week_day_n = last_week_day.weekday()

    print("上周的今天是：", last_week_day)

    if last_week_day_n < n:
        while last_week_day.weekday() != n:
            last_week_day += one_day
    else:
        while last_week_day.weekday() != n:
            last_week_day -= one_day

    return last_week_day


last_week_day_2 = get_last_wek_weekday(2)
print("上周周三是：", last_week_day_2)

if today_n < n:
  while day_n.weekday() != n:
    day_n += one_day
else:
  while day_n.weekday() != n:
    day_n -= one_day