from threading import Timer

# -*- coding: cp936 -*-

from threading import Timer

class MyTimer:

def __init__(self):

self._timer= None

self._tm = None

self._fn = None

def _do_func(self):

if self._fn:

self._fn()

self._do_start()

def _do_start(self):

self._timer = Timer(self._tm, self._do_func)

self._timer.start()

def start(self, tm, fn):

self._fn = fn

self._tm = tm

self._do_start()

def stop(self):

try:

self._timer.cancel()

except:

pass

def hello():

from datetime import datetime

print("hello world!", datetime.now())

if __name__ == ‘__main__‘:

mt = MyTimer()

mt.start(2, hello)

for i in range(10):

import time

time.sleep(1)

mt.stop()

#该代码片段来自于: http://www.sharejs.com/codes/python/6703