python生成器

import time
读取每一个省的人口利用生成器
def get_population():
    with open('人口调查','r',encoding='utf8') as f:
        for i in f:
            yield i
g = get_population()
print(eval(next(g))['population'])
#利用生成器求和
print(sum(eval(i)['population'] for i in g ))

协程
def consumer(name):
    print('我是%s,我要开始吃鸡蛋'%name)
    while 1:
        egg =  yield
        time.sleep(1)
        print('%s觉得%s真好吃'%(name,egg))

def producer():
    c1 = consumer('Jack')
    c1.__next__()
    for i in range(10):
        time.sleep(1)
        c1.send('egg%s'%i)
producer()