Python 生产者消费者模型

Posted 2021-01-24 Presley

一、简单的生产者消费者模型

 1 #!/usr/bin/python
 2 # -*- coding : utf-8 -*-
 3 # 作者： Presley
 4 # 时间： 2018-12-1
 5 # 邮箱：[email protected]
 6 # 这是我用来练习python 生产者消费者模型的测试脚本
 7 
 8 import threading,queue
 9 
10 def consume(n):
11     print("consumer [%s] get task: %s" %(n,q.get()))
12     q.task_done()
13 
14 def producer(n):
15     for i in range(2):
16         print("producer [%s] produced a new task: %s" %(n,i))
17         q.put(i)
18     #q.join()
19     print("all taks has been cosumed by consumers...")
20 
21 q = queue.Queue()
22 
23 c1 = threading.Thread(target=consume,args=[1,])
24 c2 = threading.Thread(target=consume,args=[2,])
25 c3 = threading.Thread(target=consume,args=[3,]) #因为只做了两个包子因此第三个消费者会一直阻塞住
26 
27 p = threading.Thread(target=producer,args=["wohaoshuai",])
28 
29 c1.start()
30 c2.start()
31 c3.start()
32 
33 p.start()

执行结果：

1 C:UserswohaoshuaiAppDataLocalProgramsPythonPython36python.exe E:/PythonLearn/day16/pro_consume.py
2 producer [wohaoshuai] produced a new task: 0
3 producer [wohaoshuai] produced a new task: 1
4 all taks has been cosumed by consumers...
5 consumer [2] get task: 0
6 consumer [1] get task: 1