本文实例讲述了Python实现定时执行任务的三种方式。分享给大家供大家参考，具体如下：
1.定时任务代码
#!/user/bin/env python
# @Time :2018/6/7 16:31
# @Author :PGIDYSQ
#@File :PerformTaskTimer.py
#定时执行任务命令
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.周期性执行任务
#!/user/bin/env python
# @Time :2018/6/7 16:31
# @Author :PGIDYSQ
#@File :PerformTaskTimer.py
import time,os,sched
schedule = sched.scheduler(time.time,time.sleep)
def perform_command(cmd,inc):
#在inc秒后再次运行自己，即周期运行
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()#持续运行，直到计划时间队列变成空为止
print('show time after 2 seconds:')
timming_exe('echo %time%',2)
3.循环执行命令
#!/user/bin/env python
# @Time :2018/6/7 16:31
# @Author :PGIDYSQ
#@File :PerformTaskTimer.py
import time,os
def re_exe(cmd,inc = 60):
while True:
os.system(cmd)
time.sleep(inc)
re_exe("echo %time%",5)
希望本文所述对大家Python程序设计有所帮助。
