python练习题022：怎样获取当前的日期时间

import datetime

curr_datetime = datetime.datetime.now()
print(curr_datetime,type(curr_datetime))

#data time to string
str_time = curr_datetime.strftime("%Y-%m-%d %H:%M:%S")
print("str_time",str_time)

#
print("year",curr_datetime.year)
print("month",curr_datetime.month)
print("day",curr_datetime.day)
print("hour",curr_datetime.hour)
print("minute",curr_datetime.minute)
print("second",curr_datetime.second)