V2EX control character

Control Character

Definition / 定义

控制字符:在文本或数据流中,用来控制设备或文本格式的非打印字符,通常不直接显示为可见符号,例如换行(LF)、回车(CR)、制表符(TAB)、退格(BS)、转义(ESC)等。(在 ASCII 等字符集中很常见)

Pronunciation / 发音

/kntrol krktr/

Examples / 例句

The file contains a control character that breaks the parser.
这个文件里含有一个控制字符,导致解析器出错。

When transferring logs, make sure control characters like CR and LF are handled consistently across systems.
传输日志时,要确保像回车(CR)和换行(LF)这类控制字符在不同系统中被一致地处理。

Etymology / 词源

“Control”源自拉丁语 contra(“相对、对立”)与 rotulus(“卷轴”)相关的词根演变,后来引申为“管理、控制”;“character”源自希腊语 kharaktēr,本义为“刻印的记号”,再引申为“字符”。合在一起的“control character”字面义即“用于控制用途的字符”,在电报码、打字机与早期计算机终端时代逐渐固定为术语。

Related Words / 相关词汇

Literary Works / 文学作品

  • Code: The Hidden Language of Computer Hardware and Software(Charles Petzold)讨论字符编码与控制字符(如 CR/LF)的历史与作用
  • The C Programming Language(Kernighan & Ritchie)在字符串、转义序列与输入输出处理中涉及控制字符概念
  • The Unicode Standard(Unicode Consortium)系统说明控制字符/控制码位及其兼容与规范用法
  • TCP/IP Illustrated(W. Richard Stevens)在协议与数据传输细节中常涉及控制字符与文本行结束符处理
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