python定时器实例分享

分享一个python定时器的例子，有关python time模块的实例。

代码:

class SLTimer(multiprocessing.Process):

#from datetime import datetime

#import time

def __init__(self, target=None, args=(), kwargs={},date=None,time=None):

'''\

@param date 1900-01-01

@param time 00:00:00

'''

super(SLTimer,self).__init__(target=target,args=args,kwargs=kwargs)

_date = ''

if date is None:

_date = datetime.now().__str__()[:10]

else :

_date = date

_time = ''

if time is None:

_time = datetime.now().__str__()[11:19]

else:

_time = time

self.__runtime = '%s %s' % (_date,_time)

def run(self):

timeLen = len('1900-00-00 00:00:00')

while True:

now = datetime.now().__str__()[:timeLen]

if now>=self.__runtime:

break

print 'sleeping... %s' % now

time.sleep(1.0)

super(SLTimer,self).run()

测试(www.jbxue.com)：

def show1():
from datetime import datetime
print 'hello,current time:%s' % datetime.now().__str__()
def t23():
from stock.task import SLTimer
timer = SLTimer(show1, time='16:31:50')
timer.start()