What is the role of pre tag
Feb 16, 2019 am 11:58 AMpre标签的作用是什么?
pre 元素可定义预格式化的文本。被包围在 pre 元素中的文本通常会保留空格和换行符。而文本也会呈现为等宽字体，最常见应用就是用来表示计算机的源代码。
作用：定义预格式化的文本。
说明：被包围在 pre 元素中的文本通常会保留空格和换行符。而文本也会呈现为等宽字体。<pre> 标签的一个常见应用就是用来表示计算机的源代码。可以导致段落断开的标签（例如标题、<p> 和 <address> 标签）绝不能包含在 <pre> 所定义的块里。尽管有些浏览器会把段落结束标签解释为简单地换行，但是这种行为在所有浏览器上并不都是一样的。pre 元素中允许的文本可以包括物理样式和基于内容的样式变化，还有链接、图像和水平分隔线。
注释：如果您希望使用 <pre> 标签来定义计算机源代码，比如 HTML 源代码，请使用符号实体来表示特殊字符，比如 "<" 代表 "<"，">" 代表 ">"，"&" 代表 "&"。
html pre标签 示例
<html>
<meta charset="utf-8">
<body>
<pre>
离离原上草，一岁一枯荣。
野火烧不尽，春风吹又生。
</pre>
<p>可以看到上面我们没有做任何的CSS渲染，文字依然按照我们排列好的形式格式化输出</p>
</body>
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