如何将一个列表的内容插入另一个列表 [英] How to insert the contents of one list into another

问题描述

我试图合并两个列表的内容，以便以后对整个数据集执行处理.我最初看了内置的insert函数，但它是作为列表而不是列表的内容插入的.

I am trying to combine the contents of two lists, in order to later perform processing on the entire data set. I initially looked at the built in insert function, but it inserts as a list, rather than the contents of the list.

我可以切片并追加列表，但是有没有比这更干净/更Python化的方式来做我想做的事情:

I can slice and append the lists, but is there a cleaner / more Pythonic way of doing what I want than this:

array    = ['the', 'fox', 'jumps', 'over', 'the', 'lazy', 'dog']
addition = ['quick', 'brown']

array = array[:1] + addition + array[1:]

推荐答案

您可以使用作业左侧的slice语法执行以下操作:

You can do the following using the slice syntax on the left hand side of an assignment:

>>> array = ['the', 'fox', 'jumped', 'over', 'the', 'lazy', 'dog']
>>> array[1:1] = ['quick', 'brown']
>>> array
['the', 'quick', 'brown', 'fox', 'jumped', 'over', 'the', 'lazy', 'dog']

这与Pythonic差不多！

That's about as Pythonic as it gets!

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