python datetime date transform

import datetime
#当前时间
current_datetime = datetime.datetime.today()
#当前日期
current_date = datetime.date.today()

#定义一个字符串类型日期
date_str = "2020-07-08"
#先将其转为datetime
date_str_to_datetime = datetime.datetime.strptime(date_str,'%Y-%m-%d')
#再将其转为date
date_str_to_date = datetime.date(date_str_to_datetime.year,
                               date_str_to_datetime.month,
                               date_str_to_datetime.day)

date转为datetime类似操作