【C#】如何创建xml文件以及xml文件的增、改

增：

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

namespace AppService
{
    public class XMLReader
    {
        public static void XMLMake(string inDesString)
        {
            try
            {

                string s = inDesString;
                string[] resultString = s.Split('|');

                foreach (string i in resultString)
                {

                }
                XmlDocument doc = new XmlDocument();
                XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "UTF-8", null);
                doc.AppendChild(dec);
                //创建一个根节点（一级）
                XmlElement root = doc.createElement_x("jokes");
                doc.AppendChild(root);
                //创建节点（二级）
                XmlNode node = doc.createElement_x("tag");
                //创建节点（三级）
                XmlElement element1 = doc.createElement_x("shenchang");

                //element1.SetAttribute("Name", "Sam");
                //element1.SetAttribute("ID", "665");
                element1.InnerText = resultString[];
                node.AppendChild(element1);

                XmlElement element2 = doc.createElement_x("tizhong");
                //element2.SetAttribute("Name", "Round");
                //element2.SetAttribute("ID", "678");
                element2.InnerText = resultString[];
                node.AppendChild(element2);

                XmlElement element3 = doc.createElement_x("bmi");
                //element2.SetAttribute("Name", "Round");
                //element2.SetAttribute("ID", "678");
                element3.InnerText = resultString[];
                node.AppendChild(element3);

                root.AppendChild(node);
                string p = AppDomain.CurrentDomain.BaseDirectory + "Version1";
                doc.Save(p + "\\ABC.xml");
                Console.Write(doc.OuterXml);
            }
            catch
            { }
        }
    }
}

改:

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

namespace AppService
{
    public class XMLWrite
    {
        public static void XMLUpdate(String inDesString)
        {
            string s = inDesString;
            string[] resultString = s.Split('|');

            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                string p = AppDomain.CurrentDomain.BaseDirectory + "Version1";
                xmlDoc.Load(p + "\\ABC.xml");
                XmlNode xns = xmlDoc.SelectSingleNode("jokes");
                XmlNodeList xnl = xns.ChildNodes;
                foreach (XmlNode xn in xnl)
                {
                    XmlElement xe = (XmlElement)xn;
                    XmlNodeList xnl2 = xe.ChildNodes;
                    foreach (XmlNode xn2 in xnl2)
                    {
                        XmlElement xe2 = (XmlElement)xn2;
                        if (xe2.Name == "shenchang")
                        {
                            xe2.InnerText = resultString[];
                        }
                        if (xe2.Name == "tizhong")
                        {
                            xe2.InnerText = resultString[];
                        }
                        if (xe2.Name == "bmi")
                        {
                            xe2.InnerText = resultString[];
                        }

                    }
                }
                xmlDoc.Save(p + "\\ABC.xml");
            }
            catch
            {

            }
        }
    }
}