本系列文章來源：<a>https://blog.ansheng.me/article/python-full-stack-way</a>

This module provides various functions to manipulate time values.

方法名       說明
time.sleep(int) 等待時間
time.time() 輸出時間戳，從1970年1月1號到現(xiàn)在用了多少秒
time.ctime()    返回當(dāng)前的系統(tǒng)時間
time.gmtime()   將時間戳轉(zhuǎn)換成struct_time格式
time.localtime()    以struct_time格式返回本地時間
time.mktime(time.localtime())   將struct_time格式轉(zhuǎn)回成時間戳格式
time.strftime(“%Y-%m-%d %H:%M:%S”,time.gmtime())    將struct_time格式轉(zhuǎn)成指定的字符串格式
time.strptime(“2016-01-28”,”%Y-%m-%d”)  將字符串格式轉(zhuǎn)換成struct_time格式

1.查看當(dāng)前時間

In [1]: import  time

In [2]: time.time()
Out[2]: 1496287873.1998143

In [3]: time.ctime()
Out[3]: 'Thu Jun  1 11:31:19 2017'

2.返回當(dāng)前的昨天時間

In [5]: time.ctime()
Out[5]: 'Thu Jun  1 11:54:05 2017'

In [6]: time.ctime(time.time()-86640)
Out[6]: 'Wed May 31 11:50:21 2017'

3.將時間戳轉(zhuǎn)換成struct_time格式

In [7]: time.gmtime(time.time())
Out[7]: time.struct_time(tm_year=2017, tm_mon=6, tm_mday=1, tm_hour=4, tm_min=31, tm_sec=42, tm_wday=3, tm_yday=152, tm_isdst=0)

In [8]: obj = time.gmtime(time.time())

In [9]: obj.tm_year
Out[9]: 2017

In [10]: obj.tm_mon
Out[10]: 6

In [11]: "%s-%s-%s" % (obj.tm_year,obj.tm_mon,obj.tm_mday)
Out[11]: '2017-6-1'

4.格式化

In [12]: import time                                                                                                                                                                                                              
In [13]: t = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))                                                                                                                                                     In [14]: t                                                                                                              
Out[14]: '2017-06-01 12:58:12'