Queue 实现生产者消费者模型(实例讲解)

# coding=utf-8

import Queue
import threading
import time


q = Queue.Queue(maxsize=10) # 创建一个队列对象，长度限制为10，maxsize小于1就代表无限制


def producer(name):
  count = 1
  while True:
    q.put(count) # 将值放入队列中 默认block为True，无数据时调用线程暂停，否则抛出异常
    print "%s 生产了包子 %d" % (name, count)
    count += 1
    time.sleep(0.5)


def consumer(name):
  while True:
    conut_con = q.get() # 从队列中取值 默认block为True，无数据时调用线程暂停，否则抛出异常
    print "%s 吃掉了包子 %d" % (name, conut_con)
    time.sleep(2)


pro = threading.Thread(target=producer, args=("德源",))
con = threading.Thread(target=consumer, args=("xu",))
con2 = threading.Thread(target=consumer, args=("sx",))

pro.start()
con.start()
con2.start() # 开启线程