xsl position()函数 lt and gt 问题
我的sitemap.xml如下：
<node> <title>Home </title> <link> <a href="/CMS400Developer/default.aspx" alt="Medical Home">Home </a> </link> <description>Medical Home </description> <node> <title>About Us </title> <link> <a href="/CMS400Developer/aboutus.aspx" alt="About Medical">About Us </a> </link> <description>About Medical </description> <node> <title>Staff </title> <link> <a href="/CMS400Developer/staff.aspx" alt="Staff list">Staff </a> </link> <description>Staff list </description> </node> <node> <title>News </title> <link> <a href="/CMS400Developer/news.aspx" alt="News">News </a> </link> <description>News </description> </node> <node> <title>Careers </title> <link> <a href="/CMS400Developer/jobs.aspx" alt="Careers at Medical Center">Careers </a> </link> <description>Careers at Medical Center </description> </node> <node> <title>Calender </title> <link> <a href="/CMS400Developer/events.aspx" alt="">Calender </a> </link> <description> </description> </node> </node> <node> <title>Services </title> <link> <a href="/CMS400Developer/services.aspx" alt="Services">Services </a> </link> <description>Services </description> </node> <node> <title>Products </title> <link> <a href="" alt="Product page">Products </a> </link> <description>Product page </description> </node> </node>


现在的xsl文件如下。如果写成]<xsl:if test="position() < $folderCount+2">,可以打印出子目录，没有任何问题。只是当我将lt 改成 gt 后，就只能打出主目录，其对应的子目录就输出不了了。不知道这是什么原因造成的，请各位帮忙！多谢！

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:variable name="folderCount" select="round( count(/node/node) div 2)"/>

<xsl:template match="/node">
<div id="columnOne">
This is the first column
</div>
<div id="columnTwo">
<ul class="sitemap">
<li id="firstItem" class="primary">
<a>
<xsl:attribute name="href">
<xsl:value-of select="link/a/@href"/>
</xsl:attribute>
<xsl:value-of select="title"/>
</a>
</li>
<xsl:apply-templates select="node"></xsl:apply-templates>
</ul>
</div>
</xsl:template>

<xsl:template match="node">
<xsl:if test="position() > $folderCount+2">
<li class="primary">
<xsl:choose>
<xsl:when test="link/a">
<xsl:choose>
<xsl:when test="link/a[@href!='']">
<a>
<xsl:attribute name="href">
<xsl:value-of select="link/a/@href"/>
</xsl:attribute>
<xsl:value-of select="title"/>

</a>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="title"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:when test="not(link/a)">
<xsl:value-of select="title"/>
</xsl:when>
</xsl:choose>
</li>
<xsl:for-each select="./node">
<ul class="tertiary">
<xsl:apply-templates select="."></xsl:apply-templates>
</ul>
</xsl:for-each>
</xsl:if>
</xsl:template>

</xsl:stylesheet>


[解决办法]
position() > $folderCount+2 的话没有符合的节点，
以上XML中 $folderCount = 2
而position()的值为1,2,3， 都不符合 position() > $folderCount+2
[解决办法]

XML code

 
  <?xml version="1.0" encoding="UTF-8"?> 
  <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
   <xsl:variable name="folderCount" select="count(/node/node) div 2"/>  
  <xsl:template match="/node">  
    <div id="columnOne">  
   This is the first column  
    </div>  
    <div id="columnTwo">  
    <ul class="sitemap">  
      <li id="firstItem" class="primary">  
      <a>  
        <xsl:attribute name="href">  
        <xsl:value-of select="link/a/@href"/>  
        </xsl:attribute>  
        <xsl:value-of select="title"/>  
      </a>  
      </li>  
      <xsl:apply-templates select="node[position() > $folderCount]">  </xsl:apply-templates>  
    </ul>  
    </div>  
  </xsl:template>  
  
  <xsl:template match="node">  
    <li class="primary">  
      <xsl:choose>  
      <xsl:when test="link/a">  
        <xsl:choose>  
        <xsl:when test="link/a[@href!='']">  
          <a>  
          <xsl:attribute name="href">  
            <xsl:value-of select="link/a/@href"/>  
          </xsl:attribute>  
          <xsl:value-of select="title"/>  
          </a>  
        </xsl:when>  
        <xsl:otherwise>  
          <xsl:value-of select="title"/>  
        </xsl:otherwise>  
        </xsl:choose>  
      </xsl:when>  
      <xsl:when test="not(link/a)">  
        <xsl:value-of select="title"/>  
      </xsl:when>  
      </xsl:choose>  
    </li>  
    <xsl:for-each select="./node">  
      <ul class="tertiary">   
 
      <xsl:apply-templates select=".">  </xsl:apply-templates>  
      </ul>  
    </xsl:for-each>  
  </xsl:template>  
  </xsl:stylesheet>