python-yield实现协程效果

使用yield实现协程效果

#!/usr/bin/env python
# -*-coding:utf-8 -*-

import time
def consumer(name):
    print(name)
    while True:
        bone = yield   #接收send发送的数据
        print('%s ,the %d number'%(name,bone))
        print("---------------------------------")
        time.sleep(0.2)
        
def producer(con):
    con.send(None)   #必须先发送None
    for i in range(5):
        print('producer %d'%i)
        con.send(i)
if __name__ == "__main__":
    con = consumer('consumerA')  #创建消费者对象
    producer(con)