Xslt遍历输出26个字母

<?xml version="1.0" encoding="utf-8"?>
<xsl:transform version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:pe="labelproc" exclude-result-prefixes="pe">
  <xsl:output method="html" />
  <xsl:variable  name= "varStart"  select= "65 "/>
  <!--  定义初始值  -->
  <xsl:variable  name= "varEnd"  select= "91 "/>
  <!--  定义结束值  -->
  <xsl:variable  name= "varStep"  select= "1 "/>
  <!--  定义循环步长  -->
  <xsl:template name= "MyLoopFun">
    <xsl:param name= "varStart"/>
    <xsl:if  test= "$varStart  &lt;  $varEnd ">
      <!-- 输出格式定义  -->
      <xsl:value-of  select= "$varStart"/>
      <!-- 根据ASCII码值输出字母  -->
      <xsl:value-of select="concat('&amp;#',$varStart)" disable-output-escaping="yes"/>     
      <xsl:if  test= "$varStart  &lt;  ($varEnd  -  $varStep) ">
        <br/>
      </xsl:if>
      <xsl:call-template  name= "MyLoopFun">
        <xsl:with-param  name= "varStart">
          <xsl:value-of  select= "$varStart  +  $varStep "/>
        </xsl:with-param>
      </xsl:call-template>
    </xsl:if>
  </xsl:template>
  <xsl:template match="/">
    <xsl:call-template  name= "MyLoopFun">
      <xsl:with-param  name= "varStart" select= "$varStart">
      </xsl:with-param>
    </xsl:call-template>
  </xsl:template>
</xsl:transform>