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我提交了以下站点进行验证，并收到此错误：

网站链接

错误：

No DOCTYPE found! Checking with default XHTML 1.0 Transitional Document Type.

No DOCTYPE Declaration could be found or recognized in this document. This generally means that the document is not declaring its Document Type at the top. It can also mean that the DOCTYPE declaration contains a spelling error, or that it is not using the correct syntax.

The document was checked using a default "fallback" Document Type Definition that closely resembles “XHTML 1.0 Transitional”.

我尝试将 DOC 类型更改为：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

但是它仍然会发现错误？

任何建议将不胜感激，谢谢

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1 回答 1

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我在您的源代码顶部看不到文档类型。我添加了一个并通过W3 检查器手动验证了代码，并且它在没有警告的情况下通过了与文档类型相关的代码。

这是我添加的文档类型

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
于 2013-01-12T19:00:46.083 回答