freeCodeCamp/guide/chinese/certifications/responsive-web-design/basic-html-and-html5/uncomment-html/index.md

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---
title: Uncomment HTML
localeTitle: 取消注释HTML
---
## 取消注释HTML
评论主题在开始时通常有点令人困惑。 看看这个例子:
```
<!-- This is a commented block.
It doesn't matter how long it is, if it has <h1>HTML elements</h1> in it or if it develops
into
few lines,
everything between the first weird series of character and the last is commented out -->
```
你也可以在线使用评论: `<!-- Uh, I does not exists! -->`在这里!
唯一要考虑的是当你看到这组char `<!--`从那里看到的所有东西都被注释掉了,因为你找到了镜面反射`-->` ;这些是HTML元素的开始和结束标记
##### 取消注释
取消注释意味着从注释文本中取出取消注释后面句子的h3元素全部注释掉
```
<!-- <h1>Comment header</h1> <h3>Comment subtle</h3> <article>I am the text of the comment</article> -->
```
就像这样简单:
```
<!-- <h1>Comment header</h1> --> <h3>Comment subtle</h3> <!-- <article>I am the text of the comment</article> -->
```
注意如何在h3 HTML元素之前添加一个结束注释标记 `-->` )以匹配句子开头的开始注释标记,并在它之后添加一个开始注释标记( `<!--` 以匹配结束最后的标签这样你就创建了两个内联注释一个在h3元素之前一个在之后。
如果你想取消注释一切都更容易:
```
<h1>Comment header</h1> <h3>Comment subtle</h3> <article>I am the text of the comment</article>
```
只需删除评论的开始和结束标记即可。