本文利用Python计算今天日期、明天日期、和昨天日期的相关方法，及获取当前日期是星期几python编程操作日期时间主要用到的python模块是datetime和time这2个模块获取星期几from datetime import datetime, date dayOfWeek = datetime.now().weekday() print(dayOfWeek) dayOfWeek = datetime.today().weekday() print(dayOfWeek)。

注意：datetime类的weekday()方法可以获得datetime是星期几，注意weekday()返回的是0~6，是星期一到星期日python获取今日日期import datetime today = datetime.date.today() print(today)。

输出：2022-04-14python获取昨日日期import datetime today = datetime.date.today() zuotian = today- datetime.timedelta(days=1) print(zuotian)

获取明天日期import datetime today = datetime.date.today() tomorrow = today + datetime.timedelta(days=1) print(tomorrow)

获取后天日期import datetime today = datetime.date.today() tomorrow = today + datetime.timedelta(days=2) print(tomorrow)

小结：不管是往前计算还是往后计算，直接在今日日期上进行天数的相加减