XML文件的读写

 using System;
 using System.Collections.Generic;
 using System.Xml;

 namespace COMMON
 {
     public class XmlHelperClass
     {
         public void Read()
         {
             Dictionary<string, string> m_FontList = new Dictionary<string, string>();
             try
             {
                 XmlDocument doc = new XmlDocument();

                 // 获得配置文件的全路径　　
                 string strFileName = "Font.xml";
                 doc.Load(strFileName);
                 XmlNode node = doc.GetElementById("font");
                 XmlNodeList nodes = node.ChildNodes;
                 for (int i = ; i < nodes.Count; i++)
                 {
                     if (nodes[i].NodeType == XmlNodeType.Element)
                     {
                         m_FontList[nodes[i].Name] = nodes[i].InnerText;
                     }
                 }
             }
             catch (Exception e)
             {
                 throw e;
             }
         }

         public void Write(string tagName, string value)
         {
             XmlDocument doc = new XmlDocument();

             //获得配置文件的全路径　　
             string strFileName = @"C:\Program Files\IIS Express/Font.xml";
             doc.Load(strFileName);
             XmlNode node = doc.GetElementById("font");
             XmlNodeList nodes = node.ChildNodes;
             for (int i = ; i < nodes.Count; i++)
             {
                 if (nodes[i].Name.Equals(tagName))
                 {
                     nodes[i].InnerText = value;
                 }
             }
             try
             {
                 //保存上面的修改　　
                 doc.Save(strFileName);

             }
             catch (Exception e)
             {
                 throw e;
             }
         }
     }
 }