🔟 十进制字节转 UTF-8Convert Decimal to UTF-8

使用说明与常见问题How-to & FAQ

「十进制字节转 UTF-8」是什么？What is the Convert Decimal to UTF-8 tool?

把 0–255 的十进制字节序列按 UTF-8 解码成文本。本地处理。Decode a sequence of decimal bytes (0–255) as UTF-8 text. Processed locally.

如何使用「十进制字节转 UTF-8」？How do I use the Convert Decimal to UTF-8 tool?

在「十进制字节转 UTF-8」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「72 105」，得到「Hi」。In the Convert Decimal to UTF-8: Paste or type into the input box; the result appears below instantly — click "Copy result" to copy it. Example: "72 105" → "Hi".

值之间用什么分隔？How should the values be separated?

用空格、逗号、分号或换行都可以，例如 228 184 173 或 228,184,173。每个值只能是 0–255 的十进制数字，前导零可以（072 = 72）。Spaces, commas, semicolons or new lines, e.g. 228 184 173 or 228,184,173. Each value must be a decimal number from 0 to 255; leading zeros are fine (072 = 72).

输入有错时会提示什么？What do the error messages tell me?

会指出是第几个值、原样引用它，并说明是含有非数字字符还是超出 0–255；字节组合不是有效 UTF-8 时，会给出第一个出错字节的位置和原因。They name the value by position, quote it and say whether it contains a non-digit or is outside 0–255. If the bytes are not valid UTF-8, the first bad byte is reported with its position and the reason.

开头的 BOM 会怎样？What happens to a leading BOM?

开头的 239 187 191（UTF-8 BOM）会被去掉，结果下方会注明。A leading 239 187 191 (the UTF-8 BOM) is removed and a note says so.

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

例如在「十进制字节转 UTF-8」中输入 72 105，输出为：Hi。For example, the Convert Decimal to UTF-8 turns the input 72 105 into: Hi.

编码和加密有什么区别？Is encoding the same as encryption?

编码（如 Base64、URL 编码）可直接还原，不提供保密性；加密需要密钥。「十进制字节转 UTF-8」的处理全部在本地完成。No. Encoding (Base64, URL…) is reversible by anyone; encryption needs a key. The Convert Decimal to UTF-8 works fully offline in your browser.

「十进制字节转 UTF-8」免费吗？需要注册吗？Is the Convert Decimal to UTF-8 free? Do I need an account?

「十进制字节转 UTF-8」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 Convert Decimal to UTF-8 is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.