#电脑时间用了一段时间后,系统时间不准了,想更新一下

#在windows里面,更新系统时间,时常失败,而且速度很忙.

#在网上拷贝的代码,发现很好用,比windows自带的实现要快. 
#-*- coding:utf-8 -*- 
 
import socket 
import struct 
import time 
import win32api 
 
TimeServer = '210.72.145.44' #国家授时中心ip 
Port = 123 
 
def getTime(): 
  TIME_1970 = 2208988800L 
  client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
  data = '\x1b' + 47 * '\0' 
  client.sendto(data, (TimeServer, Port)) 
  data, address = client.recvfrom(1024) 
  data_result = struct.unpack('!12I', data)[10] 
  data_result -= TIME_1970 
  return data_result 
 
def setSystemTime(): 
  tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst = time.gmtime(getTime()) 
  win32api.SetSystemTime(tm_year, tm_mon, tm_wday, tm_mday, tm_hour, tm_min, tm_sec, 0) 
  print "Set System OK!" 
 
if __name__ == '__main__': 
  setSystemTime() 
  print "%d-%d-%d %d:%d:%d" % time.localtime(getTime())[:6] 

easy_install ntplib或pip install ntplib

import os 
import time 
import ntplib 
c = ntplib.NTPClient() 
response = c.request('pool.ntp.org') 
ts = response.tx_time 
_date = time.strftime('%Y-%m-%d',time.localtime(ts)) 
_time = time.strftime('%X',time.localtime(ts)) 
os.system('date {} && time {}'.format(_date,_time))