XPath Tutorial
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XPath - Absolute Path
XPath - Absolute Path
定位途径具体指明了XML文件中的节点。 这条道路可以是绝对的,也可以是相对的。 如果地点的道路从根底线开始,或从表面上开始,那是一条绝对的道路。 以下是利用绝对道路确定要素的例子。
<xsl:for-each select = "/class/student">
<p><xsl:value-of select = "/class/student/firstname"/></p>
Example
例如,我们制作了XML文件样本students.xml及其风格文件students.xsl。 使用了XPath语。
以下是使用的XML样本。
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> <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>