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字符串字面量与转义

安全地编写和转义文本。

字符串字面量与转义 是 CoddyKit 上的免费 Zig Academy 课时。这是第 2 节课，共 4 节。你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。这是 Zig Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Zig Academy 课程共包含 4 节课。

本课时的部分内容尚未翻译，以英文显示。

Double-Quoted Literals

You write a string literal between double quotes. Zig stores its bytes in read-only memory and gives you a []const u8 slice pointing at them.

const msg = "Hello, Zig!";

Escape Sequences

Inside a literal, a backslash starts an escape sequence. It lets you include characters that would otherwise be hard or impossible to type.

Newline and Tab

The classics still apply: \n inserts a newline and \t inserts a tab. They become single bytes, 10 and 9, inside your string.

const line = "name:\tZig\n";

Escaping the Quote

To put a double quote inside text, escape it with \". Otherwise Zig would think the string ended early at that quote.

const q = "She said \"hi\".";

Escaping the Backslash

Since backslash is special, you write a literal one as \\. This matters a lot for Windows paths full of backslashes.

const p = "C:\\dev\\zig";

Hex Byte Escapes

Use \xNN to embed an exact byte by its two-digit hex value. It is handy for control bytes or binary data inside a literal.

const tab = "\x09"; // same as \t

Unicode Escapes

Write any code point with \u{...} using hex digits in braces. Zig encodes it as the right UTF-8 bytes for you automatically.

const heart = "\u{2764}";

Multiline Strings

For long text, start each line with \\. These multiline literals keep newlines and need no escaping for quotes or backslashes.

const sql =
    \\SELECT *
    \\FROM users
;

No Trailing Newline

A multiline literal does not add a newline after the final line. You stay in full control of exactly which bytes end up in the string.

Literals Are Comptime

String literals are known at compile time, so Zig can fold and check them before your program ever runs. Their length is a constant.

Concatenate with ++

Join two compile-time strings with the ++ operator. The result is a new literal, also fixed and known at compile time.

const full = "Hello, " ++ "Zig!";

Quick Check

You need a literal backslash inside a normal double-quoted string.

Recap

You can now build literals with escapes like \n, \", \xNN, and \u{...}, use \\ multiline blocks, and join text with ++. ✨

常见问题解答

「字符串字面量与转义」课时是免费的吗？

是的 — 「字符串字面量与转义」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Zig Academy 课程的其余内容，请升级到 CoddyKit PRO。 Zig Academy 课程共包含 4 节课。

「字符串字面量与转义」这节课中我会学到什么？

安全地编写和转义文本。你通过在浏览器中直接运行的动手代码来练习 Zig Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。

学习 Zig Academy 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Zig Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。这是第 2 节课，共 4 节。

「字符串字面量与转义」课时需要多长时间？

大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。

我能在这节 Zig Academy 课中编写并运行代码吗？

能。每节 Zig Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。

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