import logging
import traceback
from datetime import datetime
from apscheduler.schedulers.background import BackgroundScheduler
scheduler = BackgroundScheduler()
def spider_schedule():
  # spider_schedule是job_id
  scheduler.remove_job('spider_schedule')
  try:
    print 'spider start... ', datetime.now().strftime('%Y-%m-%d %X')
    #--------自己的業(yè)務(wù)代碼-------
    pass
    #---------------------------
    print 'spider end... ', datetime.now().strftime('%Y-%m-%d %X')
  except Exception as e:
    print traceback.format_exc(e)
  finally:
    interval_minutes = random.randint(60, 120) # 1-120分鐘隨機選一個時間
    interval_seconds = random.randint(1, 60) # 1~60秒隨機選一個時間
    scheduler.add_job(spider_schedule, 'interval', minutes=interval_minutes, seconds=interval_seconds, id='spider_schedule')
if __name__ == '__main__':
  scheduler.add_job(spider_schedule, 'interval', seconds=10, id='spider_schedule')
  scheduler.start()

#!/user/bin/env python
# @Time   :2018/6/7 16:31
# @Author  :PGIDYSQ
#@File   :PerformTaskTimer.py
#定時執(zhí)行任務(wù)命令
#1.定時任務(wù)代碼
import time,os,sched
# schedule = sched.scheduler(time.time,time.sleep)
# def perform_command(cmd,inc):
#   os.system(cmd)
#   print('task')
# def timming_exe(cmd,inc=60):
#   schedule.enter(inc,0,perform_command,(cmd,inc))
#   schedule.run()
# print('show time after 2 seconds:')
# timming_exe('echo %time%',2)
#2.周期性執(zhí)行任務(wù)
schedule = sched.scheduler(time.time,time.sleep)
def perform_command(cmd,inc):
  #在inc秒后再次運行自己，即周期運行
  schedule.enter(inc, 0, perform_command, (cmd, inc))
  os.system(cmd)
def timming_exe(cmd,inc=60):
  schedule.enter(inc,0,perform_command,(cmd,inc))
  schedule.run()#持續(xù)運行，直到計劃時間隊列變成空為止
print('show time after 2 seconds:')
timming_exe('echo %time%',2)
#3.循環(huán)執(zhí)行命令
# import time,os
# def re_exe(cmd,inc = 60):
#   while True:
#     os.system(cmd)
#     time.sleep(inc)
# re_exe("echo %time%",5)