python定时器使用示例分享__datetime_time_date_SLTimer_self_

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python定时器使用示例分享

来源: 互联网发布时间：2014-09-04

本文导语: 代码如下: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 '''...

代码如下:

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

代码如下:

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()