您需要标准库中的datetime模块。通过加载日期字符串strptime()，用于timedelta添加日期，然后用于strftime()将日期转储回字符串：
>>> from datetime import datetime, timedelta
>>> s = '2004/03/30'
>>> date = datetime.strptime(s, "%Y/%m/%d")
>>> modified_date = date + timedelta(days=1)
>>> datetime.strftime(modified_date, "%Y/%m/%d")
'2004/03/31'
602392714
清零编程群