Python--day38---进程间通信--初识队列（multiprocess.Queue）之生产者，消费者模型

1，生产者消费者模型.py

import random
import time
from multiprocessing import Queue, Process

def producer(name,food,q):
    for i in range(4):
        time.sleep(random.randint(1,3))
        f = '%s生产了%s%s'%(name,food,i)
        print(f)
        q.put(f)

def consumer(q,name):
    while True:
        food = q.get()
        if food is None:
            print('%s获取到了一个空',name)
            break
        print('33[31m%s消费了%s33[0m' %(name,food))
        time.sleep(random.randint(1,3))

if __name__ == '__main__':
    q = Queue(20)
    p1 = Process(target=producer,args=('Egon','包子',q))
    p2 = Process(target=producer,args=('wusir','泔水',q))
    c1 = Process(target=consumer,args=(q,'alex'))
    c2 = Process(target=consumer,args=(q,'jinboss'))
    p1.start()
    p2.start()
    c1.start()
    c2.start()
    p1.join()
    p2.join()
    q.put(None)

运行结果：