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# def average():
# sum = 0
# count = 0
# avg = 0
# while True:
# num = yield avg
# sum += num # 10
# count += 1 # 1
# avg = sum/count
#
# avg_g = average()
# avg_g.__next__()
# avg1 = avg_g.send(10)
# avg1 = avg_g.send(20)
# print(avg1)
获取移动平均值
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# def init(func): #装饰器
# def inner(*args,**kwargs):
# g = func(*args,**kwargs) #g = average()
# g.__next__()
# return g
# return inner
#
# @init
# def average():
# sum = 0
# count = 0
# avg = 0
# while True:
# num = yield avg
# sum += num # 10
# count += 1 # 1
# avg = sum/count
#
# avg_g = average() #===> inner
# ret = avg_g.send(10)
# print(ret)
# ret = avg_g.send(20)
# print(ret)
