V2EX repl

Repl

定义 Definition

REPL(常写作 repl)指“读取-求值-输出循环”(ReadEvalPrint Loop):一种交互式运行环境,用户输入代码/表达式,系统立即执行并返回结果,常用于调试、学习与快速试验。(也可泛指某语言的交互式命令行/控制台。)

例句 Examples

I tested the function quickly in the REPL.
我在 REPL 里快速测试了这个函数。

Using the REPL, you can explore the library step by step, inspect values, and refine your code without restarting the whole program.
借助 REPL,你可以一步步探索库、查看变量值,并在不重启整个程序的情况下逐步改进代码。

发音 Pronunciation

/rpl/

词源 Etymology

REPL是一个首字母缩写,来自 ReadEvalPrint Loop(读取→求值→打印→循环)。这种交互式计算方式早期与 Lisp 等语言的开发环境密切相关,后来扩展到 Python、Ruby、Javascript 等许多语言的交互式控制台中。

相关词 Related Words

文学与作品 Literary Works

  • Structure and Interpretation of Computer Programs(《计算机程序的构造和解释》):讨论交互式求值与解释器思想,常与 REPL 式学习/实验方式联系在一起。
  • The Ruby Programming Language(《Ruby 编程语言》):介绍 Ruby 的交互式环境(irb),属于典型 REPL 用法场景。
  • Fluent Python(《流畅的 Python》):多处以 Python 交互式解释器为例展示“即输即得”的探索式编程(REPL 风格)。
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