@H_403_1@from itertools import islice def split_every(n, iterable): i = iter(iterable) piece = list(islice(i, n)) while piece: yield piece piece = list(islice(i, n))
一些测试：
@H_403_1@>>> list(split_every(5, range(9))) [[0, 1, 2, 3, 4], [5, 6, 7, 8]] >>> list(split_every(3, (x**2 for x in range(20)))) [[0, 1, 4], [9, 16, 25], [36, 49, 64], [81, 100, 121], [144, 169, 196], [225, 256, 289], [324, 361]] >>> [''.join(s) for s in split_every(6, 'Hello world')] ['Hello ', 'world'] >>> list(split_every(100, [])) []
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