在XSLT 1.0中迭代嵌套的for-each循环时获取外部循环计数器

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="text" />

  <xsl:template match="/">
    <xsl:variable name="outerCounter" select="0" />
    <xsl:for-each select="outerNodes">
      <xsl:variable name="outerCounter" select="$outerCounter + 1" />
      <xsl:for-each select="innerNodes">
        <xsl:call-template name="nestedLoop">
          <xsl:with-param name="outerCounterParam" select="$outerCounter" />
        </xsl:call-template>
      </xsl:for-each>
    </xsl:for-each>
  </xsl:template>

  <xsl:template name="nestedLoop">
    <xsl:param name="outerCounterParam" />
    <xsl:variable name="innerCounter" select="$outerCounterParam" />
    <xsl:value-of select="concat('Outer Counter: ', $outerCounterParam, ', Inner Counter: ', $innerCounter)" />
  </xsl:template>

</xsl:stylesheet>