本文實(shí)例講述了Python列表list排列組合操作。分享給大家供大家參考，具體如下：

排列

例如：

輸入為

['1','2','3']和3

輸出為

['111','112','113','121','122','123','131','132','133','211','212','213','221','222','223','231','232','233','311','312','313','321','322','323','331','332','333']

實(shí)現(xiàn)代碼：

# -*- coding:utf-8 -*-#! pyhton2from itertools import productl = [1, 2, 3]print list(product(l, l))print list(product(l, repeat=3))

上述代碼運(yùn)行輸出：

[(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3)]
[(1, 1, 1), (1, 1, 2), (1, 1, 3), (1, 2, 1), (1, 2, 2), (1, 2, 3), (1, 3, 1), (1, 3, 2), (1, 3, 3), (2, 1, 1), (2, 1, 2), (2, 1, 3), (2, 2, 1), (2, 2, 2), (2, 2, 3), (2, 3, 1), (2, 3, 2), (2, 3, 3), (3, 1, 1), (3, 1, 2), (3, 1, 3), (3, 2, 1), (3, 2, 2), (3, 2, 3), (3, 3, 1), (3, 3, 2), (3, 3, 3)]

組合

例如：

輸入為

[1, 2, 3]和2

輸出為

[1, 2], [1, 3], [2, 3] 不考慮順序

實(shí)現(xiàn)代碼：

# -*- coding:utf-8 -*-#! pyhton2from itertools import combinationsl = [1, 2, 3, 4, 5]print list(combinations(l, 3))

上述代碼運(yùn)行輸出：

[(1, 2, 3), (1, 2, 4), (1, 2, 5), (1, 3, 4), (1, 3, 5), (1, 4, 5), (2, 3, 4), (2, 3, 5), (2, 4, 5), (3, 4, 5)]

希望本文所述對大家Python程序設(shè)計(jì)有所幫助。