如何将列表插入列表列表？ [英] How do I insert a list into a list of lists?

问题描述

让我假装我有



记录= [[狗，亚历克斯，大]，[猫，班尼，中等]，[鱼，认真，小]]



根据动物的名字，这些记录按字母顺序排列。



我怎么样？在保持字母顺序的同时插入新的动物记录？

let's pretend I have

records = [[dog, Alex, big], [cat, Benny, medium], [fish, Earnest, small]]

This list of records is in alphabetical order according to the animals' names.

How would I insert a new animal record while keeping alphabetical order?

推荐答案

很明显：按照 Richard 的建议，迭代列表直到找到第一个条目必须按字母顺序跟随候选人（您也可以点击列表的末尾），然后在找到的条目之前插入候选人。

如果您的列表很大，那么您可以实现二进制搜索 [ ^ ]。

It is pretty obvious: as suggested by Richard, iterate the list until you find the first entry which must follow the candidate in alphabetic order (you may also hit the end of the list) and then insert the candidate just before the found entry.
If your list is big then you could implement a binary search[^] for the purpose.

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