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HTML系列之什么是HTML5？HTML5和HTML的区别 #5

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yuanyuanbyte opened this issue Nov 12, 2021 · 0 comments
Open

HTML系列之什么是HTML5？HTML5和HTML的区别 #5

yuanyuanbyte opened this issue Nov 12, 2021 · 0 comments

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@yuanyuanbyte
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什么是HTML5

HTML5是HTML的新标准，其主要目标是无需任何额外的插件如Flash、Silverlight等，就可以传输所有内容。它囊括了动画、视频、丰富的图形用户界面等。

区别

从文档声明类型上看：

  • HTML是很长的一段代码，很难记住。如下代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  • HTML5却只有简简单单的声明，方便记忆。如下：
<!DOCTYPE html>

从语义结构上看：

  • HTML4.0：没有体现结构语义化的标签，通常都是这样来命名的<div id="header"></div>，这样表示网站的头部。
  • HTML5：在语义上却有很大的优势。提供了一些新的标签，比如：<header>、<article>、<footer>。

从语法的处理上看：

HTML无法处理不准确的语法；HTML5能够处理不准确的语法。
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