在C#中创建和读取XML文件的实现方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;

namespace CreateXml
{
    class Program
    {
        static void Main(string[] args)
        {
            Program app = new Program();
            app.CreateXmlFile();         
        }
        public void CreateXmlFile()
        {
            XmlDocument xmlDoc = new XmlDocument();
            //创建类型声明节点
            XmlNode node=xmlDoc.CreateXmlDeclaration("1.0","utf-8","");
            xmlDoc.AppendChild(node);
            //创建根节点
            XmlNode root = xmlDoc.CreateElement("User");
            xmlDoc.AppendChild(root);
            CreateNode(xmlDoc, root, "name", "xuwei");
            CreateNode(xmlDoc, root, "sex", "male");
            CreateNode(xmlDoc, root, "age", "25");
            try
            {
                xmlDoc.Save("c://data2.xml");
            }
            catch (Exception e)
            {
                //显示错误信息
                Console.WriteLine(e.Message);
            }
            //Console.ReadLine();

        }

        ///

 
        /// 创建节点 
        ///

 
        ///   xml文档
        /// 父节点 
        ///   节点名
        ///   节点值
        ///
        public void CreateNode(XmlDocument xmlDoc,XmlNode parentNode,string name,string value)
        {
            XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);
            node.InnerText = value;
            parentNode.AppendChild(node);
        }
    } 
}

public void CreateXmlFile()
        {
            XmlDocument xmlDoc = new XmlDocument();
            //创建类型声明节点
            XmlNode node=xmlDoc.CreateXmlDeclaration("1.0","utf-8","");
            xmlDoc.AppendChild(node);
            //创建根节点
            XmlNode root = xmlDoc.CreateElement("Users");
            xmlDoc.AppendChild(root);

            XmlNode node1 = xmlDoc.CreateNode(XmlNodeType.Element, "User", null);
            CreateNode(xmlDoc, node1, "name", "xuwei");
            CreateNode(xmlDoc, node1, "sex", "male");
            CreateNode(xmlDoc, node1, "age", "25");
            root.AppendChild(node1);

            XmlNode node2 = xmlDoc.CreateNode(XmlNodeType.Element, "User", null);
            CreateNode(xmlDoc, node2, "name", "xiaolai");
            CreateNode(xmlDoc, node2, "sex", "female");
            CreateNode(xmlDoc, node2, "age", "23");
            root.AppendChild(node2);

            try
            {
                xmlDoc.Save("c://data5.xml");
            }
            catch (Exception e)
            {
                //显示错误信息
                Console.WriteLine(e.Message);
            }
            //Console.ReadLine();

        }