线程_FIFO队列实现生产者消费者

import threading # 导入线程库
import time
from queue import Queue # 队列

class Producer(threading.Thread):
    # 线程的继承类，修改 run 方法
    def run(self):
        global queue
        count = 0
        while True:
            if queue.qsize() <1000:
                for i in range(100):
                    count = count + 1
                    msg = '生成产品'+str(count)
                    queue.put(msg)#向队列中添加元素
                    print(msg)
            time.sleep(1)

class Consumer(threading.Thread):
    # 线程的继承类，修改 run 方法
    def run(self):
        global queue
        while True:
            if queue.qsize() >100 :
                for i in range(3):
                    msg = self.name + '消费了' + queue.get() #获取数据
                    # queue.get()获取到数据
                    print(msg)
            time.sleep(1)

if __name__ == '__main__':
    queue = Queue()
    # 创建一个队列

    for i in range(500):
        queue.put('初始产品'+str(i))
        # 在 queue 中放入元素 使用 put 函数

    for i in range(2):
        p = Producer()
        p.start()
    #     调用Producer类的run方法
    for i in range(5):
        c = Consumer()
        c.start()

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2020-05-07