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 = 0; 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 FilesIIS Express/Font.xml";
            doc.Load(strFileName);
            XmlNode node = doc.GetElementById("font");
            XmlNodeList nodes = node.ChildNodes;
            for (int i = 0; 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;
            }
        } 
    }
}