XSL 语言

It started with XSL and ended up with XSLT, XPath, and XSL-FO.
XSL含有三个子语言：XSLT，XPath和XSL-FO。

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It Started with XSL
以XSL为开始

XSL stands for EXtensible Stylesheet Language.
XSL代表着可扩充样式表语言（EXtensible Stylesheet Language）。

The World Wide Web Consortium (W3C) started to develop XSL because there was a need for an XML-based Stylesheet Language.
因为基于XML样式表语言的需要，万维网联盟（W3C）开始发展XSL。

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CSS = HTML Style Sheets
层叠式样式表（CSS）= HTML样式表

HTML uses predefined tags and the meaning of the tags are well understood.
HTML使用预定的标签，标签的含义比较容易理解。

The <table> element in HTML defines a table - and a browser knows how to display it.
在HTML中，<table>元素定义了一个表格，浏览器知道如何去显示它。

Adding styles to HTML elements is simple. Telling a browser to display an element in a special font or color, is easy with CSS.
给HTML元素定义样式是比较容易的。通过使用CSS，告诉浏览器对特殊字体和颜色的元素进行显示，是非常容易的。

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XSL = XML Style Sheets
XSL=XML样式表

XML does not use predefined tags (we can use any tag-names we like), and the meaning of these tags are not well understood.
XML不使用预定的标签（我们可以使用任何我们自己喜欢的标签名字），这些标签的含义比较难以理解。

The <table> element in HTML defines a table - and a browser knows how to display it.
<table>元素可以表示HTML表格，一种设备，或者别的一些东西，因此浏览器不知道如何去显示它们。

Adding styles to HTML elements is simple. Telling a browser to display an element in a special font or color, is easy with CSS.
XSL描述的是如何显示XML文档。

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XSL - More Than a Style Sheet Language
XSL-超越样式表语言（More Than a Style Sheet Language）

XSL consists of three parts:
XSL由3部分组成：

• XSLT - a language for transforming XML documents
  XSLT-转变XML文档的语言。
• XPath - a language for navigating in XML documents
  XPath-对XML文档进行操作的语言。
• XSL-FO - a language for formatting XML documents
  XSL-FO - 格式化XML文档的语言。

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This Tutorial is About XSLT

针对XSLT的教程

The rest of this tutorial is about XSLT - the language for transforming XML documents.
剩下这部分的教程是关于XSLT的——转换XML文件的语言。

But you can also study our XPath Tutorial and our XSL-FO Tutorial.
同样你还可以学习 XPath 教程 和我们的 XSL-FO 教程.