ایکس ایس ایل ٹی <xsl:for-each> عناصر

The <xsl:for-each> element allows you to loop in XSLT.

The <xsl:for-each> element

The <xsl:for-each> element can be used to select each XML element in a specified node set.

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
<xsl:template match="/">
  <html>
  <body>
    <h2>My CD Collection</h2>
    <table border="1">
      <tr bgcolor="#9acd32">
        <th>Title</th>
        <th>Artist</th>
      </tr>
      <xsl:for-each select="catalog/cd">
      <tr>
        <td><xsl:value-of select="title"/></td>
        <td><xsl:value-of select="artist"/></td>
      </tr>
      </xsl:for-each>
    </table>
  </body>
  </html>
</xsl:template>
</xsl:stylesheet>

Note:select The value of the attribute is an XPath expression. This expression works like navigating a file system, where the forward slash can select subdirectories.

上面的转换结果类似这样：

查看此 XML 文件，查看此 XSL 文件andView results。

Result filtering

We can also filter the output from the XML file by adding a selection attribute predicate within the <xsl:for-each> element.

<xsl:for-each select="catalog/cd"[artist='Bob Dylan']">

Valid filter operators:

  • =　 (equal)
  • != (not equal)
  • < (less than)
  • > (greater than)
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
<xsl:template match="/">
 <html>
  <body>
  <h2>My CD Collection</h2>
  <table border="1">
   <tr bgcolor="#9acd32">
      <th>Title</th>
      <th>Artist</th>
   </tr>
   <xsl:for-each select="catalog/cd[artist='Bob Dylan']">
   <tr>
      <td><xsl:value-of select="title"/></td>
      <td><xsl:value-of select="artist"/></td>
   </tr>
   </xsl:for-each>
  </table>
 </body>
 </html>
</xsl:template>
</xsl:stylesheet>

上面的转换结果类似这样：

查看此 XML 文件，查看此 XSL 文件，并查看结果。