python 生成器并行运算

def consummer(name):

while True:

baozi = yield

print(‘包子%s来啦，被%s吃了‘%（baozi，name))

return None

c = consummer(‘紫星大人‘)

bz = ‘韭菜馅‘

c.send(bz)   #唤醒yield并传值

c.__next__()  #只唤醒不传值

模拟单线程下的并行效果#实际上应该是携程效果，比进程更小的一个单位

import timedef consummer(name):    print(‘顾客%s已经做好吃包子的准备了‘%name)    while True:        baozi = yield        print(‘包子%s来啦，被%s吃了‘%(baozi,name))

def producer():    c = consummer(‘张三‘)    c2 = consummer(‘李四‘)    c.__next__()    c2.__next__()    print(‘厨师开始做包子啦！‘)    for i in range(20,):        time.sleep(1)        print(‘生产出来2个包子‘)        c.send(i)        c2.send(i)producer()