XLink 实例
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"> As his fifth year at Hogwarts School of Witchcraft and Wizardry approaches, 15-year-old Harry Potter is....... </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>
在您的浏览器查看 "bookstore.xml" 文件。
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<!-- Edited with XML Spy v2007 (http://www.altova.com) -->
<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">
As his fifth year at Hogwarts School of Witchcraft and Wizardry approaches, 15-year-old Harry Potter is.......
</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>
在上面的例子中,XLink 文档命名空间被声明于文档的顶部:
xmlns:xlink="http://www.w3.org/1999/xlink"
这意味着文档可访问 XLink 的属性和特性。
xlink:type="simple" 可创建简单的类似 HTML 的链接。您也可以规定更多的复杂的链接(多方向链接),但是目前,我们仅使用简易链接。
xlink:href 属性规定了要链接的 URL,而 xlink:show 属性规定了在何处打开链接。xlink:show="new" 意味着链接(在此例中,是一幅图像)会在新窗口打开。
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