XLink Example

让我们通过研究一个实例来学习一些基础的 XLink 语法

XML 实例文档

请看下面的 XML 文档，"bookstore.xml"，它用来呈现书籍：

<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore xmlns:xlink="http://www.w3.org/1999/xlink">
<book title="Harry Potter">
  <description
  xlink:type="simple"
  xlink:href="http://book.com/images/HPotter.gif"
  xlink:show="new">
  在他上霍格沃茨魔法学校的第五年时，
  巫术临近，15岁的哈利·波特......
  </description>
</book>
<book title="XQuery Kick Start">
  <description
  xlink:type="simple"
  xlink:href="http://book.com/images/XQuery.gif"
  xlink:show="new">
  XQuery Kick Start delivers a concise introduction
  to the XQuery standard......
  </description>
</book>
</bookstore>

View the "bookstore.xml" file in your browser

In the above example, the XLink document namespace is declared at the top of the document:

xmlns:xlink="http://www.w3.org/1999/xlink"

This means that the document is accessible to the attributes and features of XLink.

xlink:type="simple" can create simple links similar to HTML. You can also specify more complex links (multi-directional links), but currently, we only use simple links.

The xlink:href attribute specifies the URL to be linked, while the xlink:show attribute specifies where the link should be opened. xlink:show="new" means that the link (in this case, an image) will open in a new window.