#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author:ZhengzhengLiu

import time
print(time.time())   #獲取時(shí)間戳
time.sleep(2)      #睡2秒
print(time.time())   #獲取時(shí)間戳
print(time.gmtime())  #獲取當(dāng)前世界標(biāo)準(zhǔn)時(shí)間UTC
print(time.localtime()) #獲取當(dāng)前本地時(shí)間
print(time.localtime(1234567890))  #將時(shí)間戳轉(zhuǎn)換成元組形式
x = time.localtime()
print(x.tm_year)    #獲取本地時(shí)間的年份
print("this is 2017 day:%d" %x.tm_yday)
print(time.mktime(x))  #將元組形式轉(zhuǎn)換成時(shí)間戳

#將struct_time轉(zhuǎn)化成格式化字符串的形式
#print(time.strftime("%Y-%m-%d %H:%M:%S"),x)
print(time.strftime("%Y-%m-%d %H:%M:%S"),time.localtime())  # %Y:x.tm_year  %m:x.tm_mon 順序可以打亂

#將格式化字符串的形式轉(zhuǎn)化成struct_time
print(time.strptime("2017-09-28 19:00:47","%Y-%m-%d %H:%M:%S"))  #x.tm_year:2017,x.tm_mon:09 位置順序必須一一對(duì)應(yīng)

print(time.asctime())   #結(jié)構(gòu)化的元組形式轉(zhuǎn)換成形如:周月日時(shí)分秒年的形式
print(time.ctime())    #將時(shí)間戳轉(zhuǎn)化成形如:周月日時(shí)分秒年的形式

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author:ZhengzhengLiu

import time     #導(dǎo)入時(shí)間模塊

#1.返回當(dāng)前時(shí)間戳
t = time.time()
print("Current time:",t)

#2.將時(shí)間戳轉(zhuǎn)換成當(dāng)?shù)貢r(shí)間的時(shí)間元祖
tup1 = time.localtime(t)
print(tup1)

#年：tm_year，月:tm_mon，日:tm_mday
print("年份：",tup1.tm_year)
print("月份：",tup1.tm_mon)
print("日期：",tup1.tm_mday)

#3.將時(shí)間元組轉(zhuǎn)換為時(shí)間戳(毫秒會(huì)忽略)
print("Timestamp is:",time.mktime(tup1))

#4.0 獲取CPU運(yùn)行時(shí)間來獲取比較精準(zhǔn)的秒數(shù)，一般用于時(shí)間間隔的獲取或比較
#4.1 休眠/停止一段時(shí)間，指定需要停止的秒數(shù)
print("開始時(shí)間：",time.clock())
time.sleep(3)
print("結(jié)束時(shí)間1：",time.clock())
time.sleep(3)
print("結(jié)束時(shí)間2：",time.clock())

#5.時(shí)間元組轉(zhuǎn)化成格式化時(shí)間字符串
tm_str = time.strftime("%Y-%m-%d %H:%M:%S",tup1)
print("格式化時(shí)間字符串:",tm_str)
#等價(jià)于
print("格式化時(shí)間字符串:",time.strftime("%Y-%m-%d %H:%M:%S",tup1))

#6.格式化時(shí)間字符串轉(zhuǎn)化成時(shí)間元組
tup2 = time.strptime(tm_str,"%Y-%m-%d %H:%M:%S")
print("時(shí)間元組：",tup2)
#等價(jià)于
print("時(shí)間元組：",time.strptime(tm_str,"%Y-%m-%d %H:%M:%S"))

import datetime
print(datetime.datetime.now())   #獲取當(dāng)前時(shí)間
print(datetime.datetime.now()+datetime.timedelta(3))  #當(dāng)前時(shí)間的后三天
print(datetime.datetime.now()+datetime.timedelta(-3)) #當(dāng)前時(shí)間的前三天
print(datetime.datetime.now()+datetime.timedelta(hours=3)) #當(dāng)前時(shí)間的后三個(gè)小時(shí)
print(datetime.datetime.now()+datetime.timedelta(minutes=-3)) #當(dāng)前時(shí)間的前三分鐘
c_time = datetime.datetime.now()
print(c_time.replace(minute=2,hour=3))  #對(duì)當(dāng)前時(shí)間的替換