class Foo:
def __init__(self,n):
self.n=n
def __iter__(self):
return self
def __next__(self):
if self.n == 13:
raise StopIteration('终止了')
self.n+=1
return self.n
# l=list('hello')
# for i in l:
# print(i)
f1=Foo(10)
# print(f1.__next__())
7_26 day 27 14min迭代器协议
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转载自www.cnblogs.com/yikedashuyikexiaocao/p/9369560.html
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