python学习之老男孩python全栈第九期_day014作业

0. 默写
a. 生成器函数
获取移动平均值例子：

 1 def init(func):
 2     def inner(*args,**kwargs):
 3         ret = func(*args,**kwargs)
 4         ret.__next__()
 5         return ret
 6     return inner
 7 @init
 8 def average():
 9     average = 0
10     count = 0
11     sum = 0
12     while 1:
13         num = yield average
14         sum += num
15         count += 1
16         average = sum/count
17 ret = average()
18 print(ret.send(10))
19 print(ret.send(20))

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