Notepad 可以通過(guò)“另存為”對(duì)話框中的編碼選項(xiàng)來(lái)轉(zhuǎn)換文件的字符編碼。使用步驟如下：1. 打開(kāi)文本文件；2. 點(diǎn)擊“文件”>“另存為”；3. 在“編碼”下拉菜單中選擇所需格式如UTF-8、ANSI、Unicode等；4. 保存文件。默認(rèn)編碼取決於Windows區(qū)域設(shè)置，若打開(kāi)亂碼可能是編碼不匹配所致，可通過(guò)再次打開(kāi)“另存為”查看當(dāng)前預(yù)選編碼來(lái)判斷原文件編碼。 UTF-8適合網(wǎng)頁(yè)和代碼文件，ANSI適用於舊系統(tǒng)，Unicode（UTF-16）用於Windows內(nèi)部及非拉丁文字，注意UTF-8有無(wú)BOM的區(qū)別。 Notepad局限包括無(wú)法批量轉(zhuǎn)換、不支持手動(dòng)重選編碼及少見(jiàn)編碼格式，此時(shí)可考慮用Notepad 或VS Code等工具。

Notepad isn't the most powerful text editor out there, but it does have some handy features — especially when it comes to handling different character encodings. If you've ever opened a text file and seen weird symbols or亂碼(garbled text), it's probably because of an encoding mismatch. Here's how you can use Notepad to convert between common encodings like UTF-8, ANSI, Unicode, and more.

How to check and change encoding when saving a file

When you open or save a file in Notepad, you can choose the encoding format from the Save As dialog. This is the main way Notepad lets you convert encodings:

• Open your text file in Notepad
• Click File > Save As
• In the "Encoding" dropdown at the bottom, you'll see options like:
  • ANSI
  • UTF-8
  • Unicode (UTF-16LE)
  • Unicode big endian (UTF-16BE)

Choose the one you need, then save the file under the same or a new name.

A quick tip: The default encoding depends on your Windows region settings. For example, Western Europe usually defaults to ANSI (often Windows-1252), while others might default to UTF-8 these days if you're on a newer version of Windows.

What encoding did the file originally use?

Notepad doesn't always tell you what encoding a file was saved in — it tries to guess. That's why sometimes you open a file and see nonsense characters.

One trick to figure this out is to open the file, then go to File > Save As again without making any changes. The current encoding will be pre-selected in the dropdown.
For example:

• If it shows "ANSI", the file was likely created in a legacy format.
• If it shows "UTF-8", it's using modern encoding that supports most languages.
• If you open a file and see Chinese characters showing up as boxes or question marks, it might actually be saved as UTF-8 but opened as ANSI — try resaving with the correct encoding.

This method isn't foolproof, though. If Notepad misguesses the original encoding, there's no built-in way to force reopen the file with a specific encoding — unlike more advanced editors like Notepad .

When should I use which encoding?

Choosing the right encoding depends on what you're doing:

• UTF-8 : Best for web pages, code files (like HTML, CSS, JS), and general-purpose use. It supports almost every language and keeps file sizes small for English text.
• ANSI : Still used by some older programs. If you're editing a config file for a legacy system, it might expect ANSI.
• Unicode (UTF-16) : Used mainly in Windows internals and some Microsoft Office files. Larger file size than UTF-8, but better for non-Latin scripts if you're working heavily in them.
• UTF-8-BOM vs No BOM : Some tools react differently to UTF-8 with or without a byte order mark (BOM). Web browsers usually handle both fine, but scripts (like Python) might have issues with BOM.

If you're not sure, UTF-8 is usually safe unless you know the file needs to work with a specific program that requires another format.

Limitations of using Notepad for encoding conversion

While Notepad gets the job done for basic conversions, it has its limits:

• You can't batch convert multiple files at once
• No option to reopen a file with a different encoding manually
• Doesn't support less common encodings like Shift-JIS or GBK

For more advanced needs, consider using Notepad , VS Code, or other editors that offer full encoding control and detection.

That's about all you can do with Notepad itself. It's simple, built-in, and good enough for basic tasks — just don't expect too much beyond that.

以上是如何使用記事本在不同的字符編碼之間轉(zhuǎn)換文本？的詳細(xì)內(nèi)容。更多資訊請(qǐng)關(guān)注PHP中文網(wǎng)其他相關(guān)文章！