9Python标准库系列之time模块

Python标准库系列之time模块

This module provides various functions to manipulate time values.

方法名	说明
time.sleep(int)	等待时间
time.time()	输出时间戳，从1970年1月1号到现在用了多少秒
time.ctime()	返回当前的系统时间
time.gmtime()	将时间戳转换成struct_time格式
time.localtime()	以struct_time格式返回本地时间
time.mktime(time.localtime())	将struct_time格式转回成时间戳格式
time.strftime(“%Y-%m-%d %H:%M:%S”,time.gmtime())	将struct_time格式转成指定的字符串格式
time.strptime(“2016-01-28”,”%Y-%m-%d”)	将字符串格式转换成struct_time格式

查看当前时间

>>> time.time()
# 以时间戳的形式返回
1464154805.82723
>>> time.ctime()
‘Wed May 25 13:42:51 2016‘

返回当前的昨天时间

>>> time.ctime()
‘Wed May 25 13:42:51 2016‘
# 今天的时间减去86640秒
>>> time.ctime(time.time()-86640)
‘Tue May 24 13:39:58 2016‘

将时间戳转换成struct_time格式

>>> time.gmtime(time.time()-86640)
time.struct\_time(tm\_year=2016, tm\_mon=5, tm\_mday=24, tm\_hour=5, tm\_min=42, tm\_sec=23, tm\_wday=1, tm\_yday=145, tm_isdst=0)
>>> obj = time.gmtime(time.time()-86640)
>>> obj.tm_year
2016
>>> obj.tm_mon
5
>>> "%s-%s-%s" % (obj.tm\_year, obj.tm\_mon, obj.tm_mday)
‘2016-5-24‘

格式化

>>> import time
>>> t = time.strftime(‘%Y-%m-%d %H:%M:%S‘,time.localtime(time.time()))
>>> t
‘2016-09-21 14:04:54‘

#Python标准库 #Time

时间： 2024-08-20 18:30:36

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