Python collections模块应用的相关内容

文章 2024-03-31 来自：开发者社区

Python中collections模块的deque双端队列：深入解析与应用

一、deque双端队列的基本原理 deque，全称double-ended queue，是一个具有队列和栈的性质的数据结构。它允许我们在队列的两端进行元素的添加和删除操作，这种特性使得它在处理需要频繁在两端进行操作的场景时特别高效。 deque内部实现采用了双向链表结构，这使得它在两端添加和删除元素的时间复杂度都是O(1)，即...

文章 2024-03-31 来自：开发者社区

Python中collections模块的Counter计数器：深入解析与应用

一、Counter计数器的基本原理 Counter本质上是一个字典子类，用于计数可哈希对象。每个元素作为键，其出现的次数作为值。这使得Counter能够高效地处理大量数据，并且提供了丰富的操作方法来分析和操作这些数据。二、Counter计数器的创建与使用创建Counter对象非常简单，可以直接传入一个可迭代对象，如列表、元...

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更新时间 2024-04-01 15:15:18

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