python迭代器Itertools

2023-02-25 16:29:57

一无限迭代器：

Iterator	Arguments	Results	Example
`count()`	start, [step]	start, start+step, start+2*step, ...	`count(10) --> 10 11 12 13 14 ...`
`cycle()`	p	p0, p1, ... plast, p0, p1, ...	`cycle('ABCD') --> A B C D A B C D ...`
`repeat()`	elem [,n]	elem, elem, elem, ... endlessly or up to n times	`repeat(10, 3) --> 10 10 10`

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