V2EX for loop

For Loop

释义 Definition

for loopfor 循环;一种常见的编程控制结构,用来重复执行一段代码,通常会配合计数器遍历集合/序列来进行循环。

发音 Pronunciation (IPA)

/fr lup/

例句 Examples

I used a for loop to print numbers from 1 to 10.
我用 for 循环把 1 到 10 的数字打印出来。

In Python, a for loop can iterate over a list, but in C it often uses an index variable with a start, condition, and update step.
在 Python 里,for 循环可以遍历列表;而在 C 语言里,它常用索引变量配合“初始化条件更新”的结构。

词源 Etymology

for loop由两部分组成:for(许多编程语言中的关键字,表示“按照给定规则进行循环”)+ loop(“环、循环”)。在早期结构化编程语言(如 C 语言等)中,for 被广泛用于表达“已知循环次数”或“按步进迭代”的重复执行,因此形成了固定术语 for loop

相关词 Related Words

文学与经典作品 Literary Works

  • The C Programming Language(Kernighan & Ritchie):讲解 for 语句与循环结构,是“for loop”最经典的出现语境之一。
  • Introduction to Algorithms(CLRS):在算法伪代码与实现讨论中经常使用 for 循环来描述迭代过程。
  • Automate the Boring Stuff with Python(Al Sweigart):以易懂示例展示 Python 的 for 循环用于遍历列表、字符串等。
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