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using System.Xml;
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XmlDocument xmldoc ;
XmlNode xmlnode ;
XmlElement xmlelem ;
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xmldoc = new XmlDocument ( ) ;
//¼ÓÈëXMLµÄÉùÃ÷¶ÎÂä,<?xml version="1.0" encoding="gb2312"?>
XmlDeclaration xmldecl;
 xmldecl = xmldoc.CreateXmlDeclaration("1.0","gb2312",null);
 xmldoc.AppendChild ( xmldecl);
//¼ÓÈëÒ»¸ö¸ùÔªËØ
xmlelem = xmldoc.CreateElement ( "" , "Employees" , "" ) ;
xmldoc.AppendChild ( xmlelem ) ;
//¼ÓÈëÁíÍâÒ»¸öÔªËØ
for(int i=1;i<3;i++)
{
XmlNode root=xmldoc.SelectSingleNode("Employees");//²éÕÒ<Employees> 
XmlElement xe1=xmldoc.CreateElement("Node");//´´½¨Ò»¸ö<Node>½Úµã 
xe1.SetAttribute("genre","ÀîÔÞºì");//ÉèÖøýڵãgenreÊôÐÔ 
xe1.SetAttribute("ISBN","2-3631-4");//ÉèÖøýڵãISBNÊôÐÔ
XmlElement xesub1=xmldoc.CreateElement("title"); 
xesub1.InnerText="CS´ÓÈëÃŵ½¾«Í¨";//ÉèÖÃÎı¾½Úµã 
xe1.AppendChild(xesub1);//Ìí¼Óµ½<Node>½ÚµãÖР
XmlElement xesub2=xmldoc.CreateElement("author"); 
xesub2.InnerText="ºò½Ý"; 
xe1.AppendChild(xesub2); 
XmlElement xesub3=xmldoc.CreateElement("price"); 
xesub3.InnerText="58.3"; 
xe1.AppendChild(xesub3);
root.AppendChild(xe1);//Ìí¼Óµ½<Employees>½ÚµãÖР
}
//±£´æ´´½¨ºÃµÄXMLÎĵµ
xmldoc.Save ( Server.MapPath("data.xml") ) ;
//////////////////////////////////////////////////////////////////////////////////////
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<?xml version="1.0" encoding="gb2312"?>
<Employees>
  <Node genre="ÀîÔÞºì" ISBN="2-3631-4">
    <title>CS´ÓÈëÃŵ½¾«Í¨</title>
    <author>ºò½Ý</author>
    <price>58.3</price>
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