多协程

>多协程

>>什么是协程

协程即协作式程序，又可以称为‘微线程’或‘纤程’。所有的协程都是通过线程建的

>>yield实现多协程

#  使用yield实现协程

def producter(cons):
    info =None #必须首先发送一个noen
    cons.send(info)
    for item in range(10):
        if item %2 ==0:
            info = 'title = chenxianq contert = 123456'
        else:
            info = 'title = chenxianq111 contert = 123456333'
        print('生产者%s'%info)
        cons.send(info)
def consmuser():
    while True:
        rev=yield
        print('消费者%s'%rev)
def main():
    con=consmuser()
    producter(con)
if __name__ == '__main__':
    main()

>>gevent

# 使用gevent 模式自动切换
import gevent


def producter():
    global info

    for item in range(10):
        if item % 2 == 0:
            info = 'title = chenxianq contert = 123456'
        else:
            info = 'title = chenxianq111 contert = 123456333'
        print('生产者%s' % info)
        gevent.sleep(1)


def consmuser():
    while True:
        rev = info
        print('消费者%s' % rev)
        gevent.sleep(1)


def main():
    producter_gevent = gevent.spawn(producter)
    consmuser_gevent = gevent.spawn(consmuser)
    producter_gevent.join()
    consmuser_gevent.join()

if __name__ == '__main__':
    main()