import time 
 
a = "2013-10-10 23:40:00" 
 
# 将其转换为时间数组 
timeArray = time.strptime(a, "%Y-%m-%d %H:%M:%S") 
 
# 转换为时间戳 
timeStamp = int(time.mktime(timeArray)) 
 
timeStamp == 1381419600 

import time 
timeArray = time.strptime(a, "%Y-%m-%d %H:%M:%S") 
otherStyleTime = time.strftime("%Y/%m/%d %H:%M:%S", timeArray) 

import time 
 
timeStamp = 1381419600 
timeArray = time.localtime(timeStamp) 
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) 
otherStyletime == "2013-10-10 23:40:00" 

import datetime 
timeStamp = 1381419600 
dateArray = datetime.datetime.utcfromtimestamp(timeStamp) 
otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S") 
otherStyletime == "2013-10-10 23:40:00" 

import time 
 
# 获得当前时间时间戳 
now = int(time.time()) 
 
# 转换为其他日期格式,如:"%Y-%m-%d %H:%M:%S" 
timeArray = time.localtime(timeStamp) 
otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray) 

import datetime 
 
#获得当前时间 
now = datetime.datetime.now() #这是时间数组格式 
 
#转换为指定的格式: 
otherStyleTime = now.strftime("%Y-%m-%d %H:%M:%S") 

import time 
import datetime 
 
# 先获得时间数组格式的日期 
threeDayAgo = (datetime.datetime.now() - datetime.timedelta(days = 3)) 
 
# 转换为时间戳: 
timeStamp = int(time.mktime(threeDayAgo.timetuple())) 
 
# 转换为其他字符串格式: 
otherStyleTime = threeDayAgo.strftime("%Y-%m-%d %H:%M:%S") 
 
# 注:timedelta()的参数有:days,hours,seconds,microseconds 

timeStamp = 1381419600 
 
# 先转换为datetime 
import datetime 
import time 
dateArray = datetime.datetime.utcfromtimestamp(timeStamp) 
threeDayAgo = dateArray - datetime.timedelta(days = 3) 
 
# 参考5,可以转换为其他的任意格式了