XSLT:如何将两个xml文件组合到一个表中

<!-- 第一个XML文件 -->
<file1>
  <row>
    <name>John</name>
    <age>25</age>
  </row>
  <row>
    <name>Alice</name>
    <age>30</age>
  </row>
</file1>

<!-- 第二个XML文件 -->
<file2>
  <row>
    <city>New York</city>
    <country>USA</country>
  </row>
  <row>
    <city>London</city>
    <country>UK</country>
  </row>
</file2>

<!-- XSLT转换规则 -->
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <table>
      <tr>
        <th>Name</th>
        <th>Age</th>
        <th>City</th>
        <th>Country</th>
      </tr>
      <xsl:for-each select="file1/row">
        <xsl:variable name="index" select="position()" />
        <tr>
          <td><xsl:value-of select="name" /></td>
          <td><xsl:value-of select="age" /></td>
          <td><xsl:value-of select="/file2/row[$index]/city" /></td>
          <td><xsl:value-of select="/file2/row[$index]/country" /></td>
        </tr>
      </xsl:for-each>
    </table>
  </xsl:template>
</xsl:stylesheet>

<table>
  <tr>
    <th>Name</th>
    <th>Age</th>
    <th>City</th>
    <th>Country</th>
  </tr>
  <tr>
    <td>John</td>
    <td>25</td>
    <td>New York</td>
    <td>USA</td>
  </tr>
  <tr>
    <td>Alice</td>
    <td>30</td>
    <td>London</td>
    <td>UK</td>
  </tr>
</table>