位置路径指定XML文档中节点的位置.该路径可以是绝对路径或相对路径.如果位置路径以根节点或"/"开头，则它是绝对路径.以下是使用绝对路径定位元素的示例中的一小部分.
/class/student : 选择类根节点内的学生节点.
< xsl:for-each select ="/class/student">
/class/student/firstname : 在类根节点中选择学生节点的名字.
<p><xsl:value-of select = "/class/student/firstname"/></p>
在本例中，我们创建了一个示例XML文档 students.xml 及其样式表文档 students.xsl ，它使用XPath表达式.
以下是使用的示例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>
<?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> <tr> <td><xsl:value-of select = "/class/student[1]/@rollno"/></td> <td><xsl:value-of select = "/class/student[1]/firstname"/></td> <td><xsl:value-of select = "/class/student[1]/lastname"/></td> <td><xsl:value-of select = "/class/student[1]/nickname"/></td> <td><xsl:value-of select = "/class/student[1]/marks"/></td> </tr> <tr> <td> <xsl:value-of select = "/class/student/@rollno"/> </td> <td><xsl:value-of select = "/class/student[2]/firstname"/></td> <td><xsl:value-of select = "/class/student[2]/lastname"/></td> <td><xsl:value-of select = "/class/student[2]/nickname"/></td> <td><xsl:value-of select = "/class/student[2]/marks"/></td> </tr> <tr> <td> <xsl:value-of select = "/class/student[3]/@rollno"/> </td> <td><xsl:value-of select = "/class/student[3]/firstname"/></td> <td><xsl:value-of select = "/class/student[3]/lastname"/></td> <td><xsl:value-of select = "/class/student[3]/nickname"/></td> <td><xsl:value-of select = "/class/student[3]/marks"/></td> </tr> </table> </body> </html> </xsl:template> </xsl:stylesheet>
