从
itertools食谱：
from itertools import teedef pairwise(iterable): "s -> (s0,s1), (s1,s2), (s2, s3), ..." a, b = tee(iterable) next(b, None) return zip(a, b)for v, w in pairwise(a): ...
从
itertools食谱：
from itertools import teedef pairwise(iterable): "s -> (s0,s1), (s1,s2), (s2, s3), ..." a, b = tee(iterable) next(b, None) return zip(a, b)for v, w in pairwise(a): ...
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