🔀 字母打乱器（随机打乱字母/字符）Shuffle Letters

使用说明与常见问题How-to & FAQ

「字母打乱器（随机打乱字母/字符）」是什么？What is the Shuffle Letters tool?

随机打乱文本中的字母：可以在每个单词内部打乱（可保留首尾字母，制作“乱序也能读”效果）、打乱整段字符或打乱单词顺序。中文、emoji 按完整字符处理。Randomly scramble letters: within each word (optionally keeping the first and last letters for the 'scrambled but still readable' effect), across all characters, or by word order. Chinese and emoji are treated as whole characters.

如何使用「字母打乱器（随机打乱字母/字符）」？How do I use the Shuffle Letters tool?

在「字母打乱器（随机打乱字母/字符）」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「I am ok」，得到「I am ok」。In the Shuffle Letters: Paste or type into the input box; the result appears below instantly — click "Copy result" to copy it. Example: "I am ok" → "I am ok".

为什么保留首尾字母后还能读懂？Why is text still readable with first and last letters kept?

这来自 2003 年前后流传的“Cmabrigde 大学研究”网络段子，它并不是剑桥大学的真实研究。段子的意思是：只要首尾字母不变，熟练的读者往往能猜出单词。这只是常见的经验说法，没有可引用的研究结论；你可以用本工具自己试试长词和短词的差别。It comes from the 'Cmabrigde University' internet meme that circulated around 2003. It is not a real Cambridge study. The idea is that with the first and last letters fixed, fluent readers can often still guess the word. Treat it as folk wisdom rather than a research result, and try long and short words here to see for yourself.

打乱是真正随机的吗？Is the shuffle truly random?

使用 Fisher–Yates 洗牌算法和浏览器的 crypto.getRandomValues 随机数，每种排列出现的概率相同。每次点击会得到不同的结果。It uses the Fisher–Yates shuffle with the browser's crypto.getRandomValues, so every arrangement is equally likely. Each run gives a different result.

标点会被打乱吗？Is punctuation shuffled?

在“单词内部”模式下只打乱字母和数字，标点和空格保持原位；在“所有字符”模式下除空白外的字符（包括标点）都会参与打乱。In within-word mode only letters and digits move; punctuation and spaces stay put. In all-characters mode everything except whitespace, punctuation included, is shuffled.

哪些词不会被打乱？中文怎么处理？Which words are left alone, and what about Chinese?

勾选“保留首尾字母”时，3 个字母以内的词中间没有可移动的字母，所以保持不变；撇号会把词分开（don't 分成 don 和 t）。“保留首尾字母”只在“每个单词内部打乱”模式下有效，其他模式下会隐藏。中文没有空格分词，连续的一串汉字会被当作一个“词”在内部打乱（保留首尾时首尾两个字不动）。“打乱单词顺序”只调换词的位置，空格、制表符和缩进保持原样。With 'Keep first and last letters' on, words of 3 letters or fewer have nothing in the middle to move, so they stay the same, and an apostrophe splits a word (don't becomes don and t). That option only applies in within-word mode and is hidden in the other modes. Chinese has no spaces between words, so a run of Chinese characters is treated as one 'word' and shuffled inside (keeping its first and last characters when that option is on). Word-order mode only swaps word positions; spaces, tabs and indentation stay as they are.

处理大段文本会卡吗？Can it handle long text?

「字母打乱器（随机打乱字母/字符）」在浏览器中直接处理，几 MB 以内的文本通常瞬间完成；文本不会离开你的设备。The Shuffle Letters runs in your browser; text up to a few MB is usually processed instantly and never leaves your device.

「字母打乱器（随机打乱字母/字符）」免费吗？需要注册吗？Is the Shuffle Letters free? Do I need an account?

「字母打乱器（随机打乱字母/字符）」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 Shuffle Letters is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.