html基础 上_html/css_WEB-ITnose
大三已经快要结束的时候才意识到自己真的一点东西都没有学到，然后就决定要在大四结束前能学多少是多少，自己要尽力。之所以要开博客是因为自己总是坚持不了，要给自己一个坚持下去的动力所以开始了。慢慢的一步一步来，不着急。
HTML超文本标记语言（Hyper Text Markup Language）是用来描述网页的一种语言。HTML不是一种编程语言，而是一种标记语言(markup language)。
标记语言是一整套标签（Markup tag）,HTML使用标记标签来描述网页。如：
HTML标签通常成对出现,如：*********，分别为开始标签和结束标签。
也有单独出现的标签，如：
，作用是在页面上绘制水平线。
HTML语言经浏览器解释后表现为网页，每个网页都有其对应的HTML文件。查看HTML文件方式：右键单击网页空白处，选择查看网页源代码。
第一个HTML示例（在记事本中编辑如下代码，将文件另存为后缀名为html或者htm的文件）：
<html><body><h1 id="第一个示例-永远的hello-world">第一个示例：永远的hello world！</h1></body></html>
双击运行打开，结果：
下面是一些常用的标签使用示例
标题
这是最大标题
水平线
用于创建水平线，分割内容。为空白标签
注释
段落
段落文本
换行
空白标签
空格
两个及以上连续的空格被显示为一个空格
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