c#中是怎么解析xml的（很急）

Question

XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(strXml);
name = xmldoc.SelectSingleNode("node1/Name").InnerText;

Answer 1

给个原来的test程序
using System;
using System.IO;
using System.Xml;
using System.Text;
public class ReadXmlFileArea
{
    private const string document = "View1.xml";    public static void Main()
    {
        ReadXmlFileArea myReadXmlFileArea = new ReadXmlFileArea();
        myReadXmlFileArea.Run(document);
    }    public void Run(String args)
    { 
      XmlTextWriter writer1 = null;
      XmlTextWriter writer2 = null;
      
      writer1 = new XmlTextWriter("polygon.xml", null);
      writer2 = new XmlTextWriter("text.xml", null);
     
      XmlTextReader reader = null;
      string sid=null;
      string myid=null;
      string myidc=null;
      string lastid=null;
      string conmouseover=null;
      string tx=null;
      string ty= null;
      string td=null;
      
      int i; 
       try
        {   
            
            // 用 XmlTextReader 加载文件
            Console.WriteLine ("正在读取文件 {0} ...", args);
            reader = new XmlTextReader (args);
            reader.WhitespaceHandling = WhitespaceHandling.None;
            Console.WriteLine ("已成功读取文件 {0} ...", args);            // 从 XmlTextReader 创建 XmlDocument
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load (reader);
            Console.WriteLine ("已成功与 XML 数据一起加载 XmlDocument ...");
            // 处理所提供的 XML 文件
            Console.WriteLine ("正在处理 ...");
            
            
            XmlNodeList nodeList=xmlDoc.SelectSingleNode("g").ChildNodes;
            
            writer1.WriteStartElement("g");
            writer2.WriteStartElement("g");
            
            foreach(XmlNode xn in nodeList)//遍历所有子节点
              {
                XmlElement xe=(XmlElement)xn;//将子节点类型转换为XmlElement类型
                XmlNodeList nls=xe.ChildNodes;//继续获取xe子节点的所有子节点
                 foreach(XmlNode xn1 in nls)//遍历
                   {
                        XmlElement xe2=(XmlElement)xn1;//转换类型
                        sid=xe2.GetAttribute("id");
                        myid=sid.Substring(0,4);
                        i=sid.IndexOf('_');
                        myidc=sid.Substring(i);
                        lastid=myid+"_graph_"+myidc;
                        string tlastid=myid+"_text_"+myidc;
                        xe2.SetAttribute("id",lastid);//处理id属性完毕
                        
                        conmouseover=xe2.GetAttribute("onmouseover");
                        int j=conmouseover.IndexOf(',');
                        string d1=conmouseover.Substring(j+7);//获取区名称及以后的字符串
                        int j1=d1.IndexOf(')');
                        string tjieming=d1.Substring(0,j1-1);//获取区名称
                        
                        tx=xe2.GetAttribute("x");
                        ty=xe2.GetAttribute("y");
                        td=xe2.GetAttribute("d");
                        
                        writer1.Formatting = Formatting.Indented;
                        writer1.WriteStartElement("polygon");
                        writer1.WriteAttributeString("id", lastid);
                        writer1.WriteAttributeString("points", td);
                        writer1.WriteEndElement(); 
                        writer1.Flush();//写入polygon.xml文件完成
                        
                        
                        writer2.Formatting = Formatting.Indented;
                        writer2.WriteStartElement("text");
                        writer2.WriteAttributeString("id", tlastid);
                        writer2.WriteAttributeString("x", tx);
                        writer2.WriteAttributeString("y", ty);
                        writer2.WriteString(tjieming);
                        writer2.WriteEndElement(); 
                        writer2.Flush();//写入text.xml完成
                        
                                 }
              }
              
            writer1.WriteEndElement();
            writer1.Close();
            writer2.WriteEndElement();
            writer2.Close();
            }        catch (Exception e)
        {
            Console.WriteLine ("异常：{0}", e.ToString());
        }        finally
        {
            Console.WriteLine();
           
            // 通过 XmlTextReader 完成
            if (reader != null)
                reader.Close();
        }
    }
} // 结束类