C# 创建 读取 更新 XML文件

public static class XmlHelper

    {

        /// <summary>

        /// 读取节点值

        /// </summary>

        /// <param name="Path">XML文件路径</param>

        /// <param name="Node1">第一级节点</param>

        /// <param name="Node2">第二级节点</param>

        /// <returns></returns>

        public static string GetXmlReader(string Path, string Node1, string Node2)

        {

            XmlDocument myDc = new XmlDocument();

            myDc.Load(Path);

            return myDc.SelectSingleNode(Node1).SelectSingleNode(Node2).InnerText;

        }

        /// <summary>

        /// 创建一个XML文件

        /// </summary>

        /// <param name="Path">XML文件路径</param>

        /// <param name="key">List</param>

        /// <param name="value">List</param>

        public static void CreateXML(string Path, List<string> key, List<string> value)

        {

            XmlDocument xmlDoc = new XmlDocument();

            XmlNode node = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", "");

            xmlDoc.AppendChild(node);

            XmlNode root = xmlDoc.CreateElement("Config");

            xmlDoc.AppendChild(root);

            for (int i = ; i < key.Count; i++)

            {

                CreateNode(xmlDoc, root, key[i].ToString(), value[i].ToString());

            }

            try

            {

                xmlDoc.Save(Path);

            }

            catch (Exception e)

            {

            }

        }

        /// <summary>

        /// 创建一个XML文件中的 节点

        /// </summary>

        /// <param name="xmlDoc"></param>

        /// <param name="parentNode"></param>

        /// <param name="name"></param>

        /// <param name="value"></param>

        public static void CreateNode(XmlDocument xmlDoc, XmlNode parentNode, string name, string value)

        {

            XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);

            node.InnerText = value;

            parentNode.AppendChild(node);

        }

        /// <summary>

        /// 更新XML中指定节点的值

        /// </summary>

        /// <param name="Path">XML文件路径</param>

        /// <param name="NodeName">需要更改的节点</param>

        /// <param name="NodeValue">需要更新的节点值</param>

        public static void UpdateNode(string Path, string NodeName, string NodeValue)

        {

            XmlDocument doc = new XmlDocument();

            doc.Load(Path);

            XmlNode xn = doc.SelectSingleNode("//" + NodeName + "");

            xn.InnerText = NodeValue;

            doc.Save(Path);

        }

    }