串联子列表python [英] concatenating sublists python

问题描述

我有一个类似的清单: n = [[1、2、3]，[4、5、6、7、8、9]]

I have one list like: n = [[1, 2, 3], [4, 5, 6, 7, 8, 9]]

我想创建一个函数，该函数采用一个列表(请参见上文)，并将属于该列表的所有子列表连接到一个列表中.

I want to create a function that takes a single list (see above) and concatenates all the sublists that are part of it into a single list.

推荐答案

n = [[1, 2, 3], [4, 5, 6, 7, 8, 9]]
nn = [ x for y in n for x in y]

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