V2EX crlf

CRLF

释义 Definition

CRLF 是计算机文本中的换行序列,表示 Carriage Return + Line Feed(回车 + 换行),通常写作 \r\n。在许多网络协议与 Windows 文本文件中用来标记一行的结束。(也常与仅用 LF\n、或仅用 CR\r 作对比。)

发音 Pronunciation (IPA)

/si r l f/

例句 Examples

Please make sure the file uses CRLF line endings.
请确认这个文件使用 CRLF 行尾换行格式。

The server rejected the request because the HTTP headers were not terminated with CRLF, as required by the protocol.
服务器拒绝了该请求,因为 HTTP 头部没有按协议要求以 CRLF 结束。

词源 Etymology

CRLF 来自两种早期打字机/电传打字机(teletype)动作的组合:CR(Carriage Return,回车)把打印头移到行首,LF(Line Feed,换行)把纸张/滚筒向上滚动一行。后来在计算机与网络标准中固定为一类“行结束符”的表示方式,尤其常见于 Windows 与许多 Internet 协议规范。

相关词 Related Words

文学与著名作品 Literary Works

  • RFC 5322(Internet Message Format,电子邮件格式标准):规定邮件头部的行结束使用 CRLF
  • RFC 7230 / RFC 9110(HTTP 消息语法与路由相关标准):在 HTTP 报文中使用 CRLF 分隔与终止行。
  • 《C 程序设计语言》(The C Programming Language, Kernighan & Ritchie):在讨论文本与换行时常涉及不同系统的行结束差异(背景上与 CR/LF 相关)。
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