位置路径指定XML文档中节点的位置。此路径可以是绝对路径，也可以是相对路径。如果位置路径以根节点或" /"开头，则它是绝对路径。以下是一些使用绝对路径定位元素的示例。
/class/student -在班级根节点内选择学生节点。
<xsl:for-each select = "/class/student">
/class/student/firstname -选择班级根节点内学生节点的名字。
<p><xsl:value-of select = "/class/student/firstname"/></p>
在此示例中，我们创建了一个样本XML文档 students.xml 及其样式表文档 students.xsl ，该文档使用XPath表达式。
students.xml
<?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "students.xsl"?> <class> <student rollno = "393"> <firstname>Dinkar</firstname> <lastname>Kad</lastname> <nickname>Dinkar</nickname> <marks>85</marks> </student> <student rollno = "493"> <firstname>Vaneet</firstname> <lastname>Gupta</lastname> <nickname>Vinni</nickname> <marks>95</marks> </student> <student rollno = "593"> <firstname>Jasvir</firstname> <lastname>Singh</lastname> <nickname>Jazz</nickname> <marks>90</marks> </student> </class>
students.xsl
<?xml version = "1.0" encoding = "UTF-8"?>
<xsl:stylesheet version = "1.0"
xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">
<xsl:template match = "/" >
<html>
<body>
<h3>Details of each Students. </h3>
<table border = "1">
<tr bgcolor = "#9acd32">
<th>Roll No</th>
<th>First Name</th>
<th>Last Name</th>
<th>Nick Name</th>
<th>Marks</th>
</tr>
</span><span class="tag"><tr></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[1]/@rollno"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[1]/firstname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[1]/lastname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[1]/nickname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[1]/marks"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"></tr></span><span class="pln">
</span><span class="tag"><tr></span><span class="pln">
</span><span class="tag"><td></span><span class="pln">
</span><span class="tag"><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student/@rollno"</span><span class="tag">/></span><span class="pln">
</span><span class="tag"></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[2]/firstname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[2]/lastname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[2]/nickname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[2]/marks"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"></tr></span><span class="pln">
</span><span class="tag"><tr></span><span class="pln">
</span><span class="tag"><td></span><span class="pln">
</span><span class="tag"><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[3]/@rollno"</span><span class="tag">/></span><span class="pln">
</span><span class="tag"></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[3]/firstname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[3]/lastname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[3]/nickname"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"><td><xsl:value-of</span><span class="pln"> </span><span class="atn">select</span><span class="pln"> </span><span class="pun">=</span><span class="pln"> </span><span class="atv">"/class/student[3]/marks"</span><span class="tag">/></td></span><span class="pln">
</span><span class="tag"></tr></span><span class="pln">
</span><span class="tag"></table></span><span class="pln">
</span><span class="tag"></body></span><span class="pln">
</span><span class="tag"></html></span><span class="pln">
</xsl:template>
</xsl:stylesheet>
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