import datetime输出时间--python

#!/usr/bin/python

# -*- coding: UTF-8 -*-

import datetime

print(datetime.datetime.now())

#是引入整个datetime包

from datetime import datetime

print(datetime.now())

>>> import datetime

>>> print(datetime.datetime.now())

2018-09-11 22:08:42.272334

>>> from datetime import datetime

>>> print(datetime.now())

2018-09-11 22:08:58.446073