V2EX recursion

Recursion

定义 Definition

Recursion(递归):一种解决问题的方法或程序结构,指在定义或执行过程中函数/过程调用自身,通常把大问题分解为规模更小的同类子问题,并以某个终止条件(base case)结束。

发音 Pronunciation (IPA)

/rkn/

例句 Examples

Recursion is useful for processing nested lists.
递归对处理嵌套列表很有用。

The algorithm uses recursion to explore every branch of the tree until it reaches a leaf node, where it stops.
该算法使用递归来探索树的每个分支,直到到达叶子节点才停止。

词源 Etymology

recursion 来自拉丁语 recursio,与 recurrere(“跑回去、返回、再出现”)有关;词根含义带有“回到起点、反复返回”,引申为在规则或步骤中“回到自身”来继续推进。

相关词 Related Words

文学作品 Literary Works

  • Douglas Hofstadter, Gdel, Escher, Bach: An Eternal Golden Braid(大量讨论自指、循环与递归结构)
  • Lewis Carroll, Alice’s Adventures in Wonderland(以悖论与自指式语言游戏闻名,常被用来类比递归/自指概念)
  • Jorge Luis Borges, Labyrinths(多篇作品呈现循环、镜像与自指的叙事结构,常与“递归式”文本讨论相关)
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