V2EX string literal

String Literal

释义 Definition

“字符串字面量”:在源代码中直接写出来、表示一段固定文本的字符串常量,通常用引号包围(如 "hello"'abc')。不同编程语言对引号形式、转义符与多行写法的规则不完全相同。

发音 Pronunciation

/str ltrl/

例句 Examples

I wrote "OK" as a string literal.
我把 "OK" 直接写成了一个字符串字面量。

The parser scans the file, skips comments, and then validates each string literal for illegal escape sequences.
解析器会扫描文件、跳过注释,然后检查每个字符串字面量是否包含非法的转义序列。

词源 Etymology

string 源自古英语,意为“线、绳”,引申为“一串(字符)”;literal 源自拉丁语 littera(字母),表示“按字面/原样的”。合在一起,强调“在代码里按原样写出的字符串”。

相关词 Related Words

文学与经典作品中的用例 Notable Works

  • The C Programming Language(Kernighan & Ritchie):讨论字符串与字符串字面量在 C 中的表示与用法。
  • Javascript: The Good Parts(Douglas Crockford):涉及字符串字面量、转义与语法细节。
  • Python Cookbook(David Beazley & Brian K. Jones):包含大量关于字符串字面量(如原始字符串、三引号)的示例与技巧。
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