演示RSS文档输出的例子：

  XmlDocument domDoc = new XmlDocument();XmlDeclaration nodeDeclar = domDoc.CreateXmlDeclaration("1.0", System.Text.Encoding.UTF8.BodyName, "yes");domDoc.AppendChild(nodeDeclar);//如果rss有样式表文件的话，加上这两句XmlProcessingInstruction nodeStylesheet = domDoc.CreateProcessingInstruction("xml-stylesheet", "type=\"text/css\" href=\"rss.css\"");domDoc.AppendChild(nodeStylesheet);//<?rss version="2.0" ?> 创建文档元素XmlElement root = domDoc.CreateElement("rss");root.SetAttribute("version", "2.0"); //添加属性结点//将文档元素添加进文档domDoc.AppendChild(root);//创建channel根元素XmlElement chnode = domDoc.CreateElement("channel");//将channel添加进根元素root.AppendChild(chnode);//频道标题XmlElement element = domDoc.CreateElement("title");//频道标题的文本内容XmlNode textNode = domDoc.CreateTextNode("执手泪眼的个人博客"); //文本结点element.AppendChild(textNode);chnode.AppendChild(element);//频道连接element = domDoc.CreateElement("link");textNode = domDoc.CreateTextNode("http://www.cnblogs.com/liszt/");element.AppendChild(textNode);chnode.AppendChild(element);//频道描述element = domDoc.CreateElement("description"); //引用结点XmlNode cDataNode = domDoc.CreateCDataSection("执手泪眼的个人博客");element.AppendChild(cDataNode);chnode.AppendChild(element);DataTable dt = GetDataTab(); //访问数据库，获取要在rss中显示的记录foreach (DataRow dr in dt.Rows){//chNode.AppendChild(element);//创建内容结点，常见的如title,description,link,pubDate,创建方法同上element = domDoc.CreateElement("item");XmlElement itemElement = domDoc.CreateElement("title");XmlNode itemNode = domDoc.CreateTextNode(Server.HtmlDecode(dr[1].ToString()));itemElement.AppendChild(itemNode);element.AppendChild(itemElement);//itemElement = domDoc.CreateElement("link");itemNode = domDoc.CreateTextNode(Server.HtmlDecode(dr[2].ToString()));itemElement.AppendChild(itemNode);element.AppendChild(itemElement);itemElement = domDoc.CreateElement("pubDate");itemNode = domDoc.CreateTextNode(Server.HtmlEncode(dr[3].ToString()));itemElement.AppendChild(itemNode);element.AppendChild(itemElement);itemElement = domDoc.CreateElement("description");itemNode = domDoc.CreateTextNode(Server.HtmlDecode(dr[4].ToString()));itemElement.AppendChild(itemNode);element.AppendChild(itemElement);chnode.AppendChild(element);}//输出XmlTextWriter objTextWrite = new XmlTextWriter(this.Response.OutputStream, System.Text.Encoding.UTF8);domDoc.WriteTo(objTextWrite);objTextWrite.Flush();objTextWrite.Close();}

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