time模塊基本使用

'''
時(shí)間格式：時(shí)間戳：單位秒漫谷，1970年開始 time.time()
          格式化的時(shí)間字符串
          元組(struct_time)共九個(gè)元素:time.localtime()
世界標(biāo)準(zhǔn)時(shí)間：UTC婴梧，  中國使用：UTC+8，   DST：夏令時(shí)
'''
import time

a = time.timezone #東8區(qū)
b = time.time() #獲取時(shí)間戳
c = time.localtime() #元組格式時(shí)間纵朋，結(jié)果為UTC+8時(shí)區(qū)
d = time.gmtime(b) #將時(shí)間戳轉(zhuǎn)換成元組格式拧廊，結(jié)果為TUC時(shí)區(qū)
e = time.mktime(c) #將元組格式轉(zhuǎn)換為秒也即時(shí)間戳格式
f = time.strftime('%Y-%m-%d %H:%M:%S',c) #%Y-%m-%d %H:%M:%S為需要轉(zhuǎn)換成的格式托修，c這個(gè)參數(shù)需是元祖類型的,將元組類型轉(zhuǎn)換成格式化時(shí)間字符串
g = time.strptime('2018-07-18 11:54:46','%Y-%m-%d %H:%M:%S') #將格式化時(shí)間字符串轉(zhuǎn)化為元組類型
h = time.asctime() #將元組時(shí)間轉(zhuǎn)為字符串,當(dāng)未傳入?yún)?shù)時(shí)默認(rèn)傳time.localtime()
i = time.ctime() #將時(shí)間戳轉(zhuǎn)換為字符串格式,當(dāng)未傳入?yún)?shù)時(shí)默認(rèn)傳time.time()
print('時(shí)區(qū):time.timezone-->  ',a)
print('獲取當(dāng)前時(shí)間戳:time.time()-->  ',b)
print('元組格式當(dāng)前時(shí)間挺勿，UTC+8時(shí)區(qū):time.localtime()-->  ',c)
print('時(shí)間戳轉(zhuǎn)換為元組，UTC時(shí)區(qū):time.gmtime(b)-->  ',d)
print('元組轉(zhuǎn)換為時(shí)間戳:time.mktime(c)-->  ',e)
print('元組轉(zhuǎn)換字符串:time.strftime("%Y-%m-%d %H:%M:%S",c)-->  ',f)
print('字符串轉(zhuǎn)化為元組:time.strptime("2018-07-18 11:54:46","%Y-%m-%d %H:%M:%S")-->  ',g)
print('元組轉(zhuǎn)化為字符串:time.asctime()-->  ',h)
print('時(shí)間戳轉(zhuǎn)化為字符串:time.ctime()-->  ',i)

時(shí)區(qū):time.timezone-->   -28800
獲取當(dāng)前時(shí)間戳:time.time()-->   1531896245.936
元組格式當(dāng)前時(shí)間玄捕，UTC+8時(shí)區(qū):time.localtime()-->   time.struct_time(tm_year=2018, tm_mon=7, tm_mday=18, tm_hour=14, tm_min=44, tm_sec=5, tm_wday=2, tm_yday=199, tm_isdst=0)
時(shí)間戳轉(zhuǎn)換為元組踩蔚，UTC時(shí)區(qū):time.gmtime(b)-->   time.struct_time(tm_year=2018, tm_mon=7, tm_mday=18, tm_hour=6, tm_min=44, tm_sec=5, tm_wday=2, tm_yday=199, tm_isdst=0)
元組轉(zhuǎn)換為時(shí)間戳:time.mktime(c)-->   1531896245.0
元組轉(zhuǎn)換字符串:time.strftime("%Y-%m-%d %H:%M:%S",c)-->   2018-07-18 14:44:05
字符串轉(zhuǎn)化為元組:time.strptime("2018-07-18 11:54:46","%Y-%m-%d %H:%M:%S")-->   time.struct_time(tm_year=2018, tm_mon=7, tm_mday=18, tm_hour=11, tm_min=54, tm_sec=46, tm_wday=2, tm_yday=199, tm_isdst=-1)
元組轉(zhuǎn)化為字符串:time.asctime()-->   Wed Jul 18 14:44:05 2018
時(shí)間戳轉(zhuǎn)化為字符串:time.ctime()-->   Wed Jul 18 14:44:05 2018

datetime模塊基本使用

import datetime

a = datetime.datetime.now() #獲取當(dāng)前時(shí)間
b = datetime.datetime.now()+datetime.timedelta(3)
c = datetime.datetime.now()+datetime.timedelta(-3)
d = datetime.datetime.now()+datetime.timedelta(hours=3)
e = datetime.datetime.now()+datetime.timedelta(hours=-3)
f = a.replace(minute=30,hour=10)


print('獲取當(dāng)前時(shí)間:datetime.datetime.now()-->  ',a)
print('當(dāng)前時(shí)間往后推3天:datetime.datetime.now()+datetime.timedelta(3)-->  ',b)
print('當(dāng)前時(shí)間往前推3天:datetime.datetime.now()+datetime.timedelta(-3)-->  ',c)
print('三小時(shí)后：datetime.datetime.now()+datetime.timedelta(hours=3)-->  ',d)
print('三小時(shí)前：datetime.datetime.now()+datetime.timedelta(hours=-3)-->  ',e)
print('時(shí)間替換:a.replace(minute=30,hour=10)-->  ',f)

獲取當(dāng)前時(shí)間:datetime.datetime.now()-->   2018-07-18 15:04:49.309000
當(dāng)前時(shí)間往后推3天:datetime.datetime.now()+datetime.timedelta(3)-->   2018-07-21 15:04:49.309000
當(dāng)前時(shí)間往前推3天:datetime.datetime.now()+datetime.timedelta(-3)-->   2018-07-15 15:04:49.309000
三小時(shí)后：datetime.datetime.now()+datetime.timedelta(hours=3)-->   2018-07-18 18:04:49.309000
三小時(shí)前：datetime.datetime.now()+datetime.timedelta(hours=-3)-->   2018-07-18 12:04:49.309000
時(shí)間替換:a.replace(minute=30,hour=10)-->   2018-07-18 10:30:49.309000