XPath 注释

可以轻松检索元素的注释。

comment()- 获取属性”name”的值。

<xsl:value-of select = "/class/student/preceding-sibling::comment()"/>

示例

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>
   <!-- Comment: This is a list of student -->
   <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>Comment(). Xpath expression="/class/student/preceding-sibling::comment()"</h3>

            <xsl:value-of select = "/class/student/preceding-sibling::comment()"/>

            <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>

               <xsl:for-each select = "/class/student">
                  <tr>
                     <td><xsl:value-of select = "@rollno"/></td>
                     <td><xsl:value-of select = "firstname"/></td>
                     <td><xsl:value-of select = "lastname"/></td>
                     <td><xsl:value-of select = "nickname"/></td>
                     <td><xsl:value-of select = "marks"/></td>         
                  </tr>
               </xsl:for-each>
            </table>    
         </body>
      </html>
   </xsl:template>
</xsl:stylesheet>

验证输出

1604557832828

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