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GeezerVison is showing github.com — python_test/test53.py at master · sinferwu/python_test

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#!/usr.bin.env python 3
# -*- coding: utf-8 -*-
'''
练习python的协程0
next(方法和next()方法在一定意义上是相同用法的,只不过next不能传递特定的值而next可以传递特定的值
next() 和send(None) 方法是等价的,都是用于启动生成器返回值
'''
__author__ = 'sergiojune'
# 消费者
def consumer():
r = ''
while True:
n = yield r # 接受调用者发送的数据
if not n:
return
print('consumer consume is %s' % n)
r = '200 OK'
def producer(c): # 这个函数先被执行
c.send(None) # 这个语句必须写,而且参数固定,作用是启动上面的生成器
x = 0
while x < 5:
x = x+1
print('producer is produce %d' % x)
r = c.send(x) # 发送数据,生成器接受数据,赋值给n变量
print('consumer is return %s' % r)
# 关闭
c.close()
c = consumer()
producer(c)
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