11 改进版通过队列实现一个生产者消费者模型

import time
from multiprocessing import Process,Queue

#生产者
def producer(q):
    for i in range(10):
        time.sleep(0.7)
        s = '大包子%s号'%i
        print(s+'新鲜出炉,拿去用')
        q.put(s)

def consumer(q):
    while 1:
        time.sleep(0.2)
        try:
            baozi = q.get_nowait() #不合适,因为无法确定做的块,还是吃的块,如果按照这样的写法,你吃的快的话,那么这个消费者的程序就直接结束了,不能满足需求
        except Exception:
            break

        print(baozi+'被吃了')

if __name__ == '__main__':
    q = Queue(10)

    pro_p = Process(target=producer,args=(q,))
    con_p = Process(target=consumer,args=(q,))
    pro_p.start()
    con_p.start()