🔁 反转十六进制数字Reverse Hex Digits

使用说明与常见问题How-to & FAQ

「反转十六进制数字」是什么？What is the Reverse Hex Digits tool?

把每个十六进制数的数字顺序左右颠倒（例如 ABCD → DCBA），每行可多个数；可保留 0x 前缀。适合练习位序和调试，数据在本地处理。Reverse the digit order of each hexadecimal number (e.g. ABCD -> DCBA). Several values per line; optional 0x prefix. Handy for digit-order drills and debugging. Processed locally.

如何使用「反转十六进制数字」？How do I use the Reverse Hex Digits tool?

在「反转十六进制数字」中，把内容粘贴或输入到上方输入框，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「abCD」，得到「DCba」。Type or paste hex numbers, several per line if you like; each one has its digit order reversed (abCD becomes DCba). Tick "Add 0x prefix" to mark the results as hex, then click "Copy result" to copy them.

怎样输入多个数？How do I enter several values?

每行一个，或用空格、逗号、分号分隔；可加 0x 前缀，下划线会被忽略。One per line, or separated by spaces, commas or semicolons; a 0x prefix is fine and underscores are ignored.

前导 0 会怎样？What about leading zeros?

反转后原来的末位变成开头，例如 10 → 01 会保留。字母大小写保持原样（abCD → DCba）。After reversing, a trailing 0 becomes a leading 0 — 10 becomes 01. Letter case is kept as typed (abCD → DCba).

输入和输出是什么样的？What does the input and output look like?

例如在「反转十六进制数字」中输入 ABCD ⏎ 10，输出为：DCBA ⏎ 01（⏎ 表示换行）。For example, the Reverse Hex Digits turns the input ABCD ⏎ 10 into: DCBA ⏎ 01 (⏎ marks a line break).

有哪些选项可以调整？What options can I adjust?

「反转十六进制数字」的设置：可勾选：「加 0x 前缀」。改动任一选项后结果会按新设置重新生成。Settings in the Reverse Hex Digits — tick boxes: "Add 0x prefix". Changing any option regenerates the result with the new setting.

代码或数据会被上传吗？Is my code or data uploaded?

不会。「反转十六进制数字」完全用 JavaScript 在本地运行，适合处理含有密钥、内部接口等敏感内容的数据。No. The Reverse Hex Digits runs entirely in local JavaScript, so it is safe for data containing keys or internal endpoints.

「反转十六进制数字」免费吗？需要注册吗？Is the Reverse Hex Digits free? Do I need an account?

「反转十六进制数字」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Reverse Hex Digits is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.