import os 
import time 
import sys 
from datetime import datetime, timedelta 
def One_Plan(): 
  # 設(shè)置啟動(dòng)周期 
  Second_update_time = 24 * 60 * 60 
 # 當(dāng)前時(shí)間 
 now_Time = datetime.now() 
 # 設(shè)置 任務(wù)啟動(dòng)時(shí)間 
 plan_Time = now_Time.replace(hour=9, minute=0, second=0, microsecond=0) 
 # 設(shè)置差值，-1 day, 21:48:53.246576，類似于這樣 
 # time.sleep()需要傳入int，所以下面使用.total_seconds() 
 # 主要用來(lái)計(jì)算差值，返回int，具體功能可以自行查閱相關(guān)資料 
 delta = plan_Time - now_Time 
 first_plan_Time = delta.total_seconds() % Second_update_time 
 print("距離第一次執(zhí)行需要睡眠%d秒" % first_plan_Time) 
 return first_plan_Time 
# while Ture代碼塊，掛起程序，睡眠時(shí)間結(jié)束后調(diào)用函數(shù)名進(jìn)行執(zhí)行 
while True: 
 s1 = One_Plan() 
 time.sleep(s1) 
 # 下面這里是自己定義的函數(shù)，想跑代碼的可以換成hellow world函數(shù)或者注釋掉這行測(cè)試下 
 exe_file(D_list) 
 print("正在執(zhí)行首次更新程序") 

from datetime import datetime 
from threading import Timer 
import time 
# 定時(shí)任務(wù) 
def task(): 
 print(datetime.now().strftime("%Y-%m-%d %H:%M:%S")) 
def timedTask(): 
 ''' 
 第一個(gè)參數(shù): 延遲多長(zhǎng)時(shí)間執(zhí)行任務(wù)(秒) 
 第二個(gè)參數(shù): 要執(zhí)行的函數(shù) 
 第三個(gè)參數(shù): 調(diào)用函數(shù)的參數(shù)(tuple) 
 ''' 
 Timer(5, task, ()).start() 
while True: 
 timedTask() 
 time.sleep(5) 

from datetime import datetime 
import sched 
import time 
def timedTask(): 
 # 初始化 sched 模塊的 scheduler 類,傳入(time.time, time.sleep)這兩個(gè)參數(shù) 
 schedscheduler = sched.scheduler(time.time, time.sleep) 
 # 增加調(diào)度任務(wù)，enter(睡眠時(shí)間，執(zhí)行級(jí)別，執(zhí)行函數(shù)) 
 scheduler.enter(5, 1, task) 
 # 運(yùn)行任務(wù) 
 scheduler.run() 
# 定時(shí)任務(wù) 
def task(): 
 print(datetime.now().strftime("%Y-%m-%d %H:%M:%S")) 
if __name__ == '__main__': 
 timedTask() 

import schedule 
import time 
def hellow(): 
 print('hellow') 
def Timer(): 
 schedule.every().day.at("09:00").do(hellow) 
 schedule.every().day.at("18:00").do(hellow) 
 while True: 
  schedule.run_pending() 
  time.sleep('需要睡眠的周期') 
Timer()