如何将一个列表插入另一个列表? [英] How do I insert a list into another list?

问题描述

我有两个列表:

A = [1,2,3]
B = [4,5,6]

是否存在将B插入A的任意位置的优雅方法?

Is there an elegant way to insert B into A at an arbitrary position?

假设输出:

[1,4,5,6,2,3]

很明显，我可以遍历B并一次插入一个，但是我发现有更好的方法.

Obviously I could iterate through B and insert them one at a time, but I figured there was a better way.

推荐答案

def insert(outer, inner, pos):
  outer[pos:pos] = inner

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