def g1(iterable):

    yield iterable

def g2(iterable):

    yield from iterable

for value in g1(range(10)):

    print(value)

for value in g2(range(10)):

    print(value)

range(0, 10)

0

1

2

3

4

5

6

7

8

9

final_result = {}

def sales_sum(pro_name): # 子生成器

    total = 0

    nums = []

    while True:

        x = yield

        print(pro_name+"销量: ", x)

        if not x:

            break

        total += x

        nums.append(x)

    return total, nums

def middle(key): # 委托生成器

    while True:

        final_result[key] = yield from sales_sum(key)

        print(key+"销量统计完成！！.")

def main(): # 调用方

    data_sets = {

        "bobby牌面膜": [1200, 1500, 3000],

        "bobby牌手机": [28,55,98,108 ],

        "bobby牌大衣": [280,560,778,70],

    }

    for key, data_set in data_sets.items():

        print("start key:", key)

        m = middle(key)

        m.send(None) # 预激middle协程

        for value in data_set:

            m.send(value)   # 给协程传递每一组的值

        m.send(None)

    print("final_result:", final_result)

if __name__ == '__main__':

    main()

start key: bobby牌面膜

bobby牌面膜销量:  1200

bobby牌面膜销量:  1500

bobby牌面膜销量:  3000

bobby牌面膜销量:  None

bobby牌面膜销量统计完成！！.

start key: bobby牌手机

bobby牌手机销量:  28

bobby牌手机销量:  55

bobby牌手机销量:  98

bobby牌手机销量:  108

bobby牌手机销量:  None

bobby牌手机销量统计完成！！.

start key: bobby牌大衣

bobby牌大衣销量:  280

bobby牌大衣销量:  560

bobby牌大衣销量:  778

bobby牌大衣销量:  70

bobby牌大衣销量:  None

bobby牌大衣销量统计完成！！.

final_result: {'bobby牌面膜': (5700, [1200, 1500, 3000]), 'bobby牌手机': (289, [28, 55, 98, 108]), 'bobby牌大衣': (1688, [280, 560, 778, 70])}