XSL is the abbreviation of extensible style sheet language. It is a language used to present XML (a subset of standard General Markup Language) data in readable format.
Started with XSLThe reason why the World Wide Web Consortium (W3C) began to develop XSL is that there is a need for XML-based style sheet languages.
CSS = html style sheetHTML uses predefined tags, and the meaning of each tag is easy to understand.
The <Table> label in HTML defines the table and the browser knows how to display it.
It is easy to add styles to HTML elements. With CSS, it is easy to tell the browser to display an element with a specific font or color.
XML does not use pre-defined labels (we can use any tag name we like), and the meaning of each tag is not so easy to understand.
<Table> A tag means an HTML table, a piece of furniture, or something else-the browser does not know how to display it.
XSL describes how to display XML documents!
XSL consists of three parts:
XSLT-a language used to convert XML documents.
XPath-a language used for navigation in XML documents.
XSL-FO-a language for formatting XML documents.
<XSL: Template> element used to build a template
<XSL: value-of> element is used to extract the value of a selected node and add the value to the converted output stream.
<XSL: For-each> the element can be used to select each XML Element in the specified node set.
<XSL: Sort> to sort the results, simply add an <XSL: Sort> element to the <XSL: For-each> element in the XSL file.
<XSL: If> to place a conditional test on the content of an XML file, add the <XSL: If> element to the XSL file.
The <XSL: Choose> element is used to express multi-condition tests in combination with <XSL: When> and <XSL: otherwise>.
<XSL: Apply-templates> An element can apply a template to the current element or the subnode of the current element.
<XSL: When expression> similar to the previous judgment, it indicates the code executed when expression is established.
<XSL: otherwise expression> used with <XSL: When> to indicate the code executed when the when condition is invalid.
<? XML version = "1.0" encoding = "gb2312"?> <? XML-stylesheet type = "text/XSL" href = "templete. XSL"?> <Root> <food> <Name> eggs </Name> <price> $5 </price> <info> very nutritious </INFO> <unit> 2 </Unit> </Food> <food> <Name> pancake </Name> <price> $4.5 </price> <info> breakfast essentials </INFO> <unit> 1 </ unit> </Food> <food> <Name> pitfall porridge </Name> <price> $2 </price> <info> my favorites </INFO> <unit> 1 </unit> </Food> </root>XSL File Content
<? XML version = "1.0" encoding = "gb2312"?> <XSL: stylesheet xmlns: XSL = "http://www.w3.org/1999/XSL/Transform" version = "1.0"> <XSL: template match = "/"> <HTML> Program
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
