XSLT教程

<xsl:for-each>
2007-3-30

<xsl:value-of> <xsl:sort>

The <xsl:for-each> element allows you to do looping in XSLT.
<xsl:for-each>元素允许在XSLT里使用循环语句。

The <xsl:for-each> Element
<sxl:-each>元素

The XSL <xsl:for-each> element can be used to select every XML element of a specified node-set:
XSL<xsl:for-each>元素的作用是：选择任何一个具有指定的节点设置（node-set）的XML元素。

<?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: The value of the select attribute is an XPath expression. An XPath expression works like navigating a file system; where a forward slash (/) selects subdirectories.
注意: 选择（select）属性值是一个XPath的表达式值。XPath表达式主要用于类似文件系统的操作，而这个文件系统里是通过在前端添加“/”选择子目录。

The result of the transformation above will look like this:
上面转换结果如下：

My CD Collection
我的CD集

Title Artist
Empire Burlesque Bob Dylan
Hide your heart Bonnie Tyler
Greatest Hits Dolly Parton
Still got the blues Gary More
Eros Eros Ramazzotti
One night only Bee Gees
Sylvias Mother Dr.Hook
Maggie May Rod Stewart
Romanza Andrea Bocelli
When a man loves a woman Percy Sledge
Black angel Savage Rose
1999 Grammy Nominees Many
For the good times Kenny Rogers
Big Willie style Will Smith
Tupelo Honey Van Morrison
Soulsville Jorn Hoel
The very best of Cat Stevens
Stop Sam Brown
Bridge of Spies T`Pau
Private Dancer Tina Turner
Midt om natten Kim Larsen
Pavarotti Gala Concert Luciano Pavarotti
The dock of the bay Otis Redding
Picture book Simply Red
Red The Communards
Unchain my heart Joe Cocker

View the XML file, View the XSL file, and View the result
XML 文件, XSL 文件, 以及 结果

Filtering the Output
过滤结果（Filtering the Output）

We can also filter the output from the XML file by adding a criterion to the select attribute in the <xsl:for-each> element.
我们也可以从XML文件通过将一个规则添加到<xsl:for-each>元素中的选择属性来过滤结果。

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

Legal filter operators are:
正规的过滤操作是：

Take a look at the adjusted XSL style sheet:
让我们来看一下调整过的XSL样式表：

<?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>

The result of the transformation above will look like this:
上面的转换结果如下：

My CD Collection
我的CD集

Title Artist
Empire Burlesque Bob Dylan

View the XML file, View the XSL file, View the result
XML文件, XSL文件, 结果

 

<xsl:value-of> <xsl:sort>