在asp.net中有没有办法将该xml文档的数据紧凑起来?

Question

有xml文档:<?xml version="1.0" encoding="utf-8"?>
          <paras>
              <para>
                 <student_name>wei</student_name>
                 <student_id>1</student_id>                
              </para>
              <para>  
                 <student_name>chen</student_name>
                 <student_id>2</student_id>
              </para>
              <para>
                 <teacher_number>100</teacher_number>
              </para>
           </paras>
怎样把它转化成如下结构: 
          <paras>
              <para>
                 <student_name>wei</student_name>
                 <student_id>1</student_id> 
                 <teacher_number>100</teacher_number>
              </para>
              <para>  
                 <student_name>chen</student_name>
                 <student_id>2</student_id>
                 <teacher_number>100</teacher_number>
              </para>
           </paras>

Answer 1

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml"/>
<xsl:template match="/">
<paras>
<xsl:for-each select="para[position() != last()]">
<para>
<xsl:copy-of select="student_name"/>
<xsl:copy-of select="student_id"/>
<teacher_number>
<xsl:value-of select="//teacher_number"/>
</teacher_number>
<para>
</xsl:for-each>
</paras>
</xsl:template>