请问“else”那里缩进与不缩进有什么区别？
>>> L = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> S = set([1, 3, 5, 7, 9])
>>> for item in L:
... if item in S:
... S.remove(item)
... else:
... S.add(item)
... print(S)
...
{10}
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>>> L = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> S = set([1, 3, 5, 7, 9])
>>> for item in L:
... if item in S:
... S.remove(item)
... else:
... S.add(item)
... print(S)
...
{10}
2020-09-26
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