Lock版本生产者和消费者模式

import random
import threading

gMoney = 1000
gTimes = 0
gAllTimes = 10
gLock = threading.Lock()

class Producer(threading.Thread):
    def run(self):
        global gMoney
        global gTimes
        while True:
            money = random.randint(100,1000)  # 随机生成100-1000的数字
            gLock.acquire()
            if gTimes >= gAllTimes:  # 限制生产者只能生产10次
                gLock.release()   # 满足条件，释放锁
                break
            gMoney += money
            gTimes += 1           # 生产次数+1
            gLock.release()
            print(‘{0}生产者生产了{1}元钱，剩余{2}元钱‘.format(threading.current_thread(),money,gMoney))

class Consumer(threading.Thread):
    def run(self):
        global gMoney
        while True:
            money = random.randint(100,1000)
            gLock.acquire()
            if gMoney >= money:   # 当剩余钱大于随机生成的钱
                gMoney -= money
                print(‘{0}消费了{1}元钱，剩余{2}元钱‘.format(threading.current_thread(), money, gMoney))
            else:
                if gTimes >= gAllTimes:
                    gLock.release()
                    break
                    print(‘{0}消费了{1}元钱，剩余{2}元钱，钱不足！‘.format(threading.current_thread(),money,gMoney))

            gLock.release()


def main():
    for i in range(3):
        t2 = Consumer()
        t2.start()

    for i in range(4):
        t1 = Producer()
        t1.start()

if __name__ == ‘__main__‘:
    main()