datetime模块

Python 标准库 datetime模块  获取当前日期时间

import datetime

a = " "
b = ()
c = 0

a=datetime.datetime.now()
b=datetime.datetime.now()
c=datetime.datetime.now()

print(datetime.datetime.now())
print(   str(a) )
print(   str(b) )
print(   str(c) )

#可以直接传送tuple，list,string，int

'''
结果为：
2018-12-22 15:07:43.263370
2018-12-22 15:07:43.263370
2018-12-22 15:07:43.263370
2018-12-22 15:07:43.298280
'''