生产者、消费者模型

生产者消费者模型(一)

import threading, time, queue

q = queue.Queue()

def Produce(name):
    count = 0  # conut表示做的包子总个数
    while count < 10:
        print('厨师%s在做包子中...' % name)
        time.sleep(2)
        q.put(count)  # 容器中添加包子
        # 当做完一个包子后就要给顾客发送一个信号,表示已经做完,让他们吃包子
        print('produce%s已经做好了第%s个包子' % (name, count))
        count += 1
        print('oking...')


def Consumer(name):
    count = 0  # count表示包子被吃的总个数
    while count < 10:
        time.sleep(2)  # 排队去取包子,
        if not q.empty():  # 如果存在
            data = q.get()  # 取包子, 吃包子
            print('\033[32;1mConsumer %s已经把第%s个包子吃了...\033[0m' % (name, data))
        else:
            print('包子被吃完了...')
        count += 1


if __name__ == '__main__':
    p1 = threading.Thread(target=Produce, args=('A君',))
    c1 = threading.Thread(target=Consumer, args=('B君',))
    c2 = threading.Thread(target=Consumer, args=('C君',))
    c3 = threading.Thread(target=Consumer, args=('D君',))
    p1.start()
    time.sleep(10)
    c1.start()
    c2.start()
    c3.start()

生产者消费者模型(二)

这个是A做一个，就等着，吃完的人发出一个信号task_down，A在继续进行做

import threading, time, queue

q = queue.Queue()


def Produce(name):
    count = 0  # conut表示做的包子总个数
    while count < 10:
        print('厨师%s在做包子中...' % name)
        time.sleep(2)
        q.put(count)  # 容器中添加包子
        print('produce%s已经做好了第%s个包子' % (name, count))
        count += 1

        # q.task_done()  #   当做完一个包子后就要给顾客发送一个信号,表示已经做完,让他们吃包子
        q.join()  # 等待接收信号,
        print('ok...')


def Consumer(name):
    count = 0  # count表示包子被吃的总个数
    while count < 10:
        time.sleep(2)
        # print('waiting...')
        # q.join()
        data = q.get()  # 取包子, 吃包子
        print('%seating...' % name)
        time.sleep(4)  # 吃包子用了4s然后给厨师发送一个信号
        q.task_done()

        print('\033[32;1mConsumer %s已经把第%s个包子吃了...\033[0m' % (name, data))
        # print('包子被吃完了...')
        count += 1


if __name__ == '__main__':
    p1 = threading.Thread(target=Produce, args=('A君',))
    c1 = threading.Thread(target=Consumer, args=('B君',))
    c2 = threading.Thread(target=Consumer, args=('C君',))
    c3 = threading.Thread(target=Consumer, args=('D君',))
    p1.start()
    time.sleep(10)
    c1.start()
    c2.start()
    c3.start()

生产者消费者模型(三)

import threading, time, queue

q = queue.Queue()

# 利用同步对象也可以
event = threading.Event()


def Produce(name):
    count = 0  # conut表示做的包子总个数
    while count < 10:
        print('厨师%s在做包子中...' % name)
        time.sleep(2)
        q.put(count)  # 容器中添加包子
        print('produce%s已经做好了第%s个包子' % (name, count))
        event.set()  # 等待接收信号,
        count += 1


def Consumer(name):
    count = 0
    while count < 10:
        # time.sleep(2)
        event.wait()
        data = q.get()  # 取包子, 吃包子
        print('%seating...' % name)
        time.sleep(2)  # 吃包子用了2s然后给厨师发送一个信号
        print('\033[32;1mConsumer %s已经把第%s个包子吃了...\033[0m' % (name, data))
        event.clear()
        count += 1


if __name__ == '__main__':
    p1 = threading.Thread(target=Produce, args=('A君',))
    c1 = threading.Thread(target=Consumer, args=('B君',))
    c2 = threading.Thread(target=Consumer, args=('C君',))
    c3 = threading.Thread(target=Consumer, args=('D君',))
    p1.start()
    time.sleep(10)
    c1.start()
    c2.start()
    c3.start()