下班倒計時

今天好無聊……

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

from datetime import time, datetime
from time import sleep

def countdown():
    nowtime = datetime.now()
    xbtime = nowtime.replace(hour = 17,minute = 30,second = 0)
    delta = xbtime - nowtime
    print delta

if __name__ == "__main__":
    while 1==1:
        countdown()
        sleep(1)