python的协程（可实现高并发）

一、生成器例子

def f():
    print('你好')
    name = yield 44
    print(name)
    yield 55
g = f()
next(g)
print(g.send('zhou'))

二、

from builtins import print, next, range


def consumer(name):
    print('---->开始吃包子了......')
    while True:
        baozi = yield
        print('%s 吃了包子编号为：%s'%(name,baozi))
def producer():
    next(conn)
    next(conn2)
    for i in range(5):
        conn.send(i)
        conn2.send(i)

if __name__ == '__main__':
    conn = consumer('张三')
    conn2 = consumer('李四')
    p = producer()

 

三、

 

四、