python生产者消费者简单模型

#!/usr/bin/pythonimport Queueimport timeimport threadingq=Queue.Queue()class producer(threading.Thread):    def __init__(self,i):        threading.Thread.__init__(self,name="producer Thread-%d" % i)    def run(self):        global q        count=9        while True:            for i in range(3):                if q.qsize() > 12:                    pass                else:                    count=count+1                    msg=str(count)                    q.put(msg)                    print self.name+' '+'producer'+msg+' '+'Queue Size:'+str(q.qsize())                                time.sleep(2)class consumer(threading.Thread):    def __init__(self,i):        threading.Thread.__init__(self,name="consumer Thread-%d" % i)    def run(self):        global q        while True:            for i in range(3):                if q.qsize() < 1:                    pass                else:                    msg=q.get()                    print self.name+' '+'consumer'+msg+' '+'Queue Size:'+str(q.qsize())            time.sleep(2)def test():    for i in range(10):        q.put(str(i))        print 'Init producer  '+str(i)    for i in range(2):        p=producer(i)        p.start()    for i in range(3):        c=consumer(i)        c.start()if __name__ == '__main__':    test()

生产者消费者模型