如何修复“在UTF-8文件中找到的字节顺序标记”验证警告 [英] How to fix "Byte-Order Mark found in UTF-8 File" validation warning

问题描述

我有一个xhtml页面在xhtml strict doctype下验证 - 但是，我得到这个警告，我试图理解，并更正。

I've got an xhtml page validating under xhtml strict doctype -- but, I getting this warning which I trying to understand -- and correct.

只是，我如何找到这个错误的字节顺序标记。我正在使用Visual Studio编辑我的文件 - 不知道这是否有帮助。

Just, how do I locate this errant "Byte-Order Mark". I'm editing my file using Visual Studio--not sure if that helps.

在UTF-8档案中找到警告字节顺序标记。

Warning Byte-Order Mark found in UTF-8 File.

已知UTF-8编码文件中的Unicode字节顺序标记（BOM）会导致某些文本编辑器和旧版本浏览器出现问题。您可以考虑避免使用它，直到它得到更好的支持。

The Unicode Byte-Order Mark (BOM) in UTF-8 encoded files is known to cause problems for some text editors and older browsers. You may want to consider avoiding its use until it is better supported.

推荐答案

您的问题很容易：字节顺序标记（BOM）将在最开始

The location part of your question is easy: The byte-order mark (BOM) will be at the very beginning of the file.

编辑档案时，请前往档案|高级保存选项... ，您应该找到一个编码下拉列表（以及行结束下拉列表）。它可能设置为使用Unicode（带签名的UTF-8） - 代码页65001。如果你向下滚动一个公平的位，你可以找到Unicode（UTF-8无签名） - 代码页65001。这应该做它（如果你想）。

When editing the file, go to File | Advanced Save Options... and you should find an "Encoding" drop-down (along with a "Line endings" drop-down). It's probably set to use "Unicode (UTF-8 with signature) - Codepage 65001". If you scroll down a fair bit, you can find "Unicode (UTF-8 without signature) - Codepage 65001". That should do it (if you want to). Some systems may be confused by a BOM on a UTF-8 file, as the warning indicates.

另请参阅此注释在Unicode网站的常见问题中关于BOM和UTF-8文件。它没有其他功能，除了调用，该文件是，其实是UTF-8。特别是，它对字节顺序（我们有BOM的主要原因）没有影响，因为UTF-8的字节顺序是固定的。

See also this note in the Unicode site's FAQ about the BOM and UTF-8 files. It has no function other than to call out that the file is, in fact, UTF-8. In particular, it has no effect on the byte order (the main reason we have BOMs), because the byte order of UTF-8 is fixed.

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