.NET操作Xml类

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.IO;
using System.Xml;

namespace Comm
{
    /// <summary>
    /// Xml类
    /// </summary>
    public class CustomXmlDocument
    {
        /// <summary>
        /// 将Xml转成 dataset
        /// </summary>
        /// <param name="xmlfilepath">Xml文件全路径</param>
        /// <returns>dataset</returns>
        public static DataSet getDataset(string xmlfilepath)
        {
            bool flag = File.Exists(xmlfilepath);
            if (!flag)
            {
                return null;
            }
            DataSet ds = new DataSet();
            try
            {
                ds.ReadXml(xmlfilepath);
            }
            catch
            {
                return null;
            }
            return ds;
        }

        /// <summary>
        /// 将Xml转成 datatable
        /// </summary>
        /// <param name="xmlfilepath">Xml文件全路径</param>
        /// <returns>datatable</returns>
        public static DataTable getDatatable(string xmlfilepath)
        {
            DataSet ds = getDataset(xmlfilepath);
            if (ds == null || ds.Tables.Count < 1)
            {
                return null;
            }
            return ds.Tables[0];
        }

        /// <summary>
        /// 获取 dataset
        /// </summary>
        /// <param name="xmlcontent">Xml内容</param>
        /// <returns>dataset</returns>
        public static DataSet getDatasetBycontent(string xmlcontent)
        {    
            DataSet ds = null;
            try
            {
                StringReader stringReader = new StringReader(xmlcontent);
                XmlTextReader xmlTextReader = new XmlTextReader(stringReader);
                ds = new DataSet();
                ds.ReadXmlSchema(xmlTextReader);
            }
            catch
            {
                return null;
            }

            return ds;
        }

        /// <summary>
        /// 获取 datatable
        /// </summary>
        /// <param name="xmlcontent">Xml内容</param>
        /// <returns>datatable</returns>
        public static DataTable getDatatableBycontent(string xmlcontent)
        {
            DataSet ds = getDatasetBycontent(xmlcontent);
            if (ds == null || ds.Tables.Count < 1)
            {
                return null;
            }

            return ds.Tables[0];
        }

        /// <summary>
        /// 将 xmlcontent 写成 Xml文件
        /// </summary>
        /// <param name="xmlcontent">Xml内容</param>
        /// <returns>保存Xml全路径</returns>
        public static string writeXmlByxmlcontent(string xmlcontent, string savefilepath)
        {
            try
            {
                File.WriteAllText(savefilepath, xmlcontent);
            }
            catch
            {
                return "";
            }
            return savefilepath;
        }

        /// <summary>
        /// 将 dataset 写成 Xml文件
        /// </summary>
        /// <param name="ds">dataset</param>
        /// <param name="savefilepath">保存Xml全路径</param>
        /// <returns>保存Xml全路径</returns>
        public static string writeXmlBydataset(DataSet ds, string savefilepath)
        {
            string[] columns = new string[ds.Tables[0].Columns.Count];
            for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
            {
                columns[i] = ds.Tables[0].Columns[i].ColumnName;
            }
            return writeXmlBydatatable(ds.Tables[0], savefilepath, columns);
        }

        /// <summary>
        /// 将 datatable 写成 Xml文件
        /// </summary>
        /// <param name="dt">datatable</param>
        /// <param name="savefilepath">保存Xml全路径</param>
        /// <returns>保存Xml全路径</returns>
        public static string writeXmlBydatatable(DataTable dt, string savefilepath,string[] columns)
        {
            try
            {
                System.Xml.XmlDocument xmlDoc = new System.Xml.XmlDocument();
                XmlDeclaration xmldecl;
                xmldecl = xmlDoc.CreateXmlDeclaration("1.0", null, null);
                xmldecl.Encoding = "UTF-8";
                xmldecl.Standalone = "yes";
                XmlElement xmlElem = xmlDoc.CreateElement("table");
                xmlDoc.InsertBefore(xmldecl, xmlElem);

                if (columns == null || columns.Length < 1)
                {
                    return "";
                }

                foreach (DataRow row in dt.Rows)
                {
                    XmlElement xmlElemrow = xmlDoc.CreateElement("row");
                    foreach (string column in columns)
                    {
                        XmlElement xmlElemcolum = xmlDoc.CreateElement(column);
                        xmlElemcolum.Value = row[column].ToString().Trim();
                        xmlElemrow.AppendChild(xmlElemcolum);
                    }
                    xmlElem.AppendChild(xmlElemrow);
                }
            }
            catch
            {
                return "";
            }

            return savefilepath;

        }
    }
}

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

namespace Comm
{
    public class XMLHelper
    {
        #region private AppendChild
        private static void AppendChild(XmlDocument xDoc, XmlNode parentNode, params XmlParameter[] paras)
        {
            foreach (XmlParameter xpar in paras)
            {
                XmlNode newNode = xDoc.CreateNode(XmlNodeType.Element, xpar.Name, null);
                string ns = xpar.NamespaceOfPrefix == null ? "" : newNode.GetNamespaceOfPrefix(xpar.NamespaceOfPrefix);
                foreach (AttributeParameter attp in xpar.Attributes)
                {
                    XmlNode attr = xDoc.CreateNode(XmlNodeType.Attribute, attp.Name, ns == "" ? null : ns);
                    attr.Value = attp.Value;
                    newNode.Attributes.SetNamedItem(attr);
                }
                newNode.InnerText = xpar.InnerText;
                parentNode.AppendChild(newNode);
            }
        }
        #endregion

        #region private AddEveryNode
        private static void AddEveryNode(XmlDocument xDoc, XmlNode parentNode, params XmlParameter[] paras)
        {
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            foreach (XmlNode xns in nlst)
            {
                if (xns.Name == parentNode.Name)
                {
                    AppendChild(xDoc, xns, paras);
                }
                else
                {
                    foreach (XmlNode xn in xns)
                    {
                        if (xn.Name == parentNode.Name)
                        {
                            AppendChild(xDoc, xn, paras);
                        }
                    }
                }
            }
        }
        #endregion

        #region xmlDoc
        /// <summary>
        /// 创建一个XmlDocument对象
        /// </summary>
        /// <param name="PathOrString">文件名称或XML字符串</param>
        public static XmlDocument xmlDoc(string PathOrString)
        {
            try
            {
                XmlDocument xDoc = new XmlDocument();
                if (System.IO.File.Exists(PathOrString))
                {
                    xDoc.Load(PathOrString);
                }
                else
                {
                    xDoc.LoadXml(PathOrString);
                }
                return xDoc;
            }
            catch
            {
                return null;
            }
        }
        #endregion

        #region CreateXMLFile
        /// <summary>
        /// 创建一个XML文档
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="rootName">根结点名称</param>
        /// <param name="elemName">元素节点名称</param>
        /// <param name="paras">XML参数</param>
        public static void CreateXMLFile(string fileFullName, string rootName, string elemName, params XmlParameter[] paras)
        {
            XmlDocument xDoc = new XmlDocument();
            XmlNode xn;
            xn = xDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
            xDoc.AppendChild(xn);
            XmlNode root = xDoc.CreateElement(rootName);
            xDoc.AppendChild(root);
            XmlNode ln = xDoc.CreateNode(XmlNodeType.Element, elemName, null);
            AppendChild(xDoc, ln, paras);
            root.AppendChild(ln);
            try
            {
                xDoc.Save(fileFullName);
            }
            catch
            {
                throw;
            }
        }
        /// <summary>
        /// 创建一个XML文档
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="rootName">根结点名称</param>
        /// <param name="elemp">元素节点对象</param>
        /// <param name="paras">XML参数</param>
        public static void CreateXMLFile(string fileFullName, string rootName, XmlParameter elemp, params XmlParameter[] paras)
        {
            XmlDocument xDoc = new XmlDocument();
            XmlNode xn;
            xn = xDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
            xDoc.AppendChild(xn);
            XmlNode root = xDoc.CreateElement(rootName);
            xDoc.AppendChild(root);
            XmlNode ln = xDoc.CreateNode(XmlNodeType.Element, elemp.Name, null);
            string ns = elemp.NamespaceOfPrefix == null ? "" : ln.GetNamespaceOfPrefix(elemp.NamespaceOfPrefix);
            foreach (AttributeParameter ap in elemp.Attributes)
            {
                XmlNode elemAtt = xDoc.CreateNode(XmlNodeType.Attribute, ap.Name, ns == "" ? null : ns);
                elemAtt.Value = ap.Value;
                ln.Attributes.SetNamedItem(elemAtt);
            }
            AppendChild(xDoc, ln, paras);
            root.AppendChild(ln);
            try
            {
                xDoc.Save(fileFullName);
            }
            catch
            {
                throw;
            }
        }
        /// <summary>
        /// 创建一个XML文档
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="rootp">根结点对象</param>
        /// <param name="elemName">元素节点名称</param>
        /// <param name="paras">XML参数</param>
        public static void CreateXMLFile(string fileFullName, XmlParameter rootp, string elemName, params XmlParameter[] paras)
        {
            XmlDocument xDoc = new XmlDocument();
            XmlNode xn;
            xn = xDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
            xDoc.AppendChild(xn);
            XmlNode root = xDoc.CreateElement(rootp.Name);
            string ns = rootp.NamespaceOfPrefix == null ? "" : root.GetNamespaceOfPrefix(rootp.NamespaceOfPrefix);
            foreach (AttributeParameter ap in rootp.Attributes)
            {
                XmlNode rootAtt = xDoc.CreateNode(XmlNodeType.Attribute, ap.Name, ns == "" ? null : ns);
                rootAtt.Value = ap.Value;
                root.Attributes.SetNamedItem(rootAtt);
            }
            xDoc.AppendChild(root);
            XmlNode ln = xDoc.CreateNode(XmlNodeType.Element, elemName, null);
            AppendChild(xDoc, ln, paras);
            root.AppendChild(ln);
            try
            {
                xDoc.Save(fileFullName);
            }
            catch
            {
                throw;
            }
        }
        /// <summary>
        /// 创建一个XML文档
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="rootp">根结点对象</param>
        /// <param name="elemp">元素节点对象</param>
        /// <param name="paras">XML参数</param>
        public static void CreateXMLFile(string fileFullName, XmlParameter rootp, XmlParameter elemp, params XmlParameter[] paras)
        {
            XmlDocument xDoc = new XmlDocument();
            XmlNode xn;
            xn = xDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
            xDoc.AppendChild(xn);
            XmlNode root = xDoc.CreateElement(rootp.Name);
            string ns = rootp.NamespaceOfPrefix == null ? "" : root.GetNamespaceOfPrefix(rootp.NamespaceOfPrefix);
            foreach (AttributeParameter ap in rootp.Attributes)
            {
                XmlNode rootAtt = xDoc.CreateNode(XmlNodeType.Attribute, ap.Name, ns == "" ? null : ns);
                rootAtt.Value = ap.Value;
                root.Attributes.SetNamedItem(rootAtt);
            }
            xDoc.AppendChild(root);
            XmlNode ln = xDoc.CreateNode(XmlNodeType.Element, elemp.Name, null);
            ns = elemp.NamespaceOfPrefix == null ? "" : ln.GetNamespaceOfPrefix(elemp.NamespaceOfPrefix);
            foreach (AttributeParameter ap in elemp.Attributes)
            {
                XmlNode elemAtt = xDoc.CreateNode(XmlNodeType.Attribute, ap.Name, ns == "" ? null : ns);
                elemAtt.Value = ap.Value;
                ln.Attributes.SetNamedItem(elemAtt);
            }
            AppendChild(xDoc, ln, paras);
            root.AppendChild(ln);
            try
            {
                xDoc.Save(fileFullName);
            }
            catch
            {
                throw;
            }
        }
        #endregion

        #region AddNewNode
        /// <summary>
        /// 添加新节点
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="parentNode">新节点的父节点对象</param>
        /// <param name="paras">XML参数对象</param>
        public static bool AddNewNode(string fileFullName, XmlNode parentNode, params XmlParameter[] paras)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            if (parentNode.Name == xDoc.DocumentElement.Name)
            {
                XmlNode newNode = xDoc.CreateNode(XmlNodeType.Element, xDoc.DocumentElement.ChildNodes[0].Name, null);
                AppendChild(xDoc, newNode, paras);
                xDoc.DocumentElement.AppendChild(newNode);
            }
            else
            {
                AddEveryNode(xDoc, parentNode, paras);
            }
            xDoc.Save(fileFullName);
            return true;
        }
        /// <summary>
        /// 添加新节点
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="parentNode">新节点的父节点对象</param>
        /// <param name="paras">XML参数对象</param>
        public static bool AddNewNode(XmlDocument xDoc, XmlNode parentNode, params XmlParameter[] paras)
        {
            if (parentNode.Name == xDoc.DocumentElement.Name)
            {
                XmlNode newNode = xDoc.CreateNode(XmlNodeType.Element, xDoc.DocumentElement.ChildNodes[0].Name, null);
                AppendChild(xDoc, newNode, paras);
                xDoc.DocumentElement.AppendChild(newNode);
            }
            else
            {
                AddEveryNode(xDoc, parentNode, paras);
            }
            return true;
        }
        /// <summary>
        /// 添加新节点
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="parentName">新节点的父节点名称</param>
        /// <param name="paras">XML参数对象</param>
        public static bool AddNewNode(XmlDocument xDoc, string parentName, params XmlParameter[] paras)
        {
            XmlNode parentNode = GetNode(xDoc, parentName);
            if (parentNode == null) return false;
            if (parentNode.Name == xDoc.DocumentElement.Name)
            {
                XmlNode newNode = xDoc.CreateNode(XmlNodeType.Element, xDoc.DocumentElement.ChildNodes[0].Name, null);
                AppendChild(xDoc, newNode, paras);
                xDoc.DocumentElement.AppendChild(newNode);
            }
            else
            {
                AddEveryNode(xDoc, parentNode, paras);
            }
            return true;
        }
        /// <summary>
        /// 添加新节点
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="parentName">新节点的父节点名称</param>
        /// <param name="paras">XML参数对象</param>
        public static bool AddNewNode(string fileFullName, string parentName, params XmlParameter[] paras)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            XmlNode parentNode = GetNode(xDoc, parentName);
            if (parentNode == null) return false;
            if (parentNode.Name == xDoc.DocumentElement.Name)
            {
                XmlNode newNode = xDoc.CreateNode(XmlNodeType.Element, xDoc.DocumentElement.ChildNodes[0].Name, null);
                AppendChild(xDoc, newNode, paras);
                xDoc.DocumentElement.AppendChild(newNode);
            }
            else
            {
                AddEveryNode(xDoc, parentNode, paras);
            }
            xDoc.Save(fileFullName);
            return true;
        }
        #endregion

        #region AddAttribute
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="node">节点对象</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attributeName">新属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void AddAttribute(XmlDocument xDoc, XmlNode node, string namespaceOfPrefix, string attributeName, string attributeValue)
        {
            string ns = namespaceOfPrefix == null ? null : node.GetNamespaceOfPrefix(namespaceOfPrefix);
            XmlNode xn = xDoc.CreateNode(XmlNodeType.Attribute, attributeName, ns == "" ? null : ns);
            xn.Value = attributeValue;
            node.Attributes.SetNamedItem(xn);
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="node">节点对象</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attps">节点属性参数</param>
        public static void AddAttribute(XmlDocument xDoc, XmlNode node, string namespaceOfPrefix, params AttributeParameter[] attps)
        {
            string ns = namespaceOfPrefix == null ? null : node.GetNamespaceOfPrefix(namespaceOfPrefix);
            foreach (AttributeParameter attp in attps)
            {
                XmlNode xn = xDoc.CreateNode(XmlNodeType.Attribute, attp.Name, ns == "" ? null : ns);
                xn.Value = attp.Value;
                node.Attributes.SetNamedItem(xn);
            }
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="node">节点对象</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attributeName">新属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void AddAttribute(string fileFullName, XmlNode node, string namespaceOfPrefix, string attributeName, string attributeValue)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            AddAttribute(xDoc, node, namespaceOfPrefix, attributeName, attributeValue);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="node">节点对象</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attps">节点属性参数</param>
        public static void AddAttribute(string fileFullName, XmlNode node, string namespaceOfPrefix, params AttributeParameter[] attps)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            AddAttribute(xDoc, node, namespaceOfPrefix, attps);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attributeName">新属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void AddAttribute(XmlDocument xDoc, string nodeName, string namespaceOfPrefix, string attributeName, string attributeValue)
        {
            XmlNodeList xlst = xDoc.DocumentElement.ChildNodes;
            for (int i = 0; i < xlst.Count; i++)
            {
                XmlNode node = GetNode(xlst[i], nodeName);
                if (node == null) return;
                string ns = namespaceOfPrefix == null ? null : node.GetNamespaceOfPrefix(namespaceOfPrefix);
                XmlNode xn = xDoc.CreateNode(XmlNodeType.Attribute, attributeName, ns == "" ? null : ns);
                xn.Value = attributeValue;
                node.Attributes.SetNamedItem(xn);
            }
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attps">节点属性参数</param>
        public static void AddAttribute(XmlDocument xDoc, string nodeName, string namespaceOfPrefix, params AttributeParameter[] attps)
        {
            XmlNodeList xlst = xDoc.DocumentElement.ChildNodes;
            for (int i = 0; i < xlst.Count; i++)
            {
                XmlNode node = GetNode(xlst[i], nodeName);
                if (node == null) return;
                string ns = namespaceOfPrefix == null ? null : node.GetNamespaceOfPrefix(namespaceOfPrefix);
                foreach (AttributeParameter attp in attps)
                {
                    XmlNode xn = xDoc.CreateNode(XmlNodeType.Attribute, attp.Name, ns == "" ? null : ns);
                    xn.Value = attp.Value;
                    node.Attributes.SetNamedItem(xn);
                }
            }
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attributeName">新属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void AddAttribute(string fileFullName, string nodeName, string namespaceOfPrefix, string attributeName, string attributeValue)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            XmlNodeList xlst = xDoc.DocumentElement.ChildNodes;
            for (int i = 0; i < xlst.Count; i++)
            {
                XmlNode node = GetNode(xlst[i], nodeName);
                if (node == null) break;
                AddAttribute(xDoc, node, namespaceOfPrefix, attributeName, attributeValue);
            }
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 添加节点属性
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="namespaceOfPrefix">该节点的命名空间URI</param>
        /// <param name="attps">节点属性参数</param>
        public static void AddAttribute(string fileFullName, string nodeName, string namespaceOfPrefix, params AttributeParameter[] attps)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            XmlNodeList xlst = xDoc.DocumentElement.ChildNodes;
            for (int i = 0; i < xlst.Count; i++)
            {
                XmlNode node = GetNode(xlst[i], nodeName);
                if (node == null) break;
                AddAttribute(xDoc, node, namespaceOfPrefix, attps);
            }
            xDoc.Save(fileFullName);
        }
        #endregion

        #region GetNode
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <returns></returns>
        public static XmlNode GetNode(string fileFullName, string nodeName)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            if (xDoc.DocumentElement.Name == nodeName) return (XmlNode)xDoc.DocumentElement;
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            foreach (XmlNode xns in nlst)  // 遍历所有子节点
            {
                if (xns.Name.ToLower() == nodeName.ToLower()) return xns;
                else
                {
                    XmlNode xn = GetNode(xns, nodeName);
                    if (xn != null) return xn;  /// V1.0.0.3添加节点判断
                }
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="node">节点对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <returns></returns>
        public static XmlNode GetNode(XmlNode node, string nodeName)
        {
            foreach (XmlNode xn in node)
            {
                if (xn.Name.ToLower() == nodeName.ToLower()) return xn;
                else
                {
                    XmlNode tmp = GetNode(xn, nodeName);
                    if (tmp != null) return tmp;
                }
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <returns></returns>
        public static XmlNode GetNode(XmlDocument xDoc, string nodeName)
        {
            if (xDoc.DocumentElement.Name == nodeName) return (XmlNode)xDoc.DocumentElement;
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            foreach (XmlNode xns in nlst)  // 遍历所有子节点
            {
                if (xns.Name.ToLower() == nodeName.ToLower()) return xns;
                else
                {
                    XmlNode xn = GetNode(xns, nodeName);
                    if (xn != null) return xn;   /// 添加节点判断, 避免只查询一个节点
                }
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="Index">节点索引</param>
        /// <param name="nodeName">节点名称</param>
        public static XmlNode GetNode(XmlDocument xDoc, int Index, string nodeName)
        {
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            if (nlst.Count <= Index) return null;
            if (nlst[Index].Name.ToLower() == nodeName.ToLower()) return (XmlNode)nlst[Index];
            foreach (XmlNode xn in nlst[Index])
            {
                return GetNode(xn, nodeName);
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="Index">节点索引</param>
        /// <param name="nodeName">节点名称</param>
        public static XmlNode GetNode(string fileFullName, int Index, string nodeName)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            if (nlst.Count <= Index) return null;
            if (nlst[Index].Name.ToLower() == nodeName.ToLower()) return (XmlNode)nlst[Index];
            foreach (XmlNode xn in nlst[Index])
            {
                return GetNode(xn, nodeName);
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="node">节点对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="innerText">节点内容</param>
        public static XmlNode GetNode(XmlNode node, string nodeName, string innerText)
        {
            foreach (XmlNode xn in node)
            {
                if (xn.Name.ToLower() == nodeName.ToLower() && xn.InnerText == innerText) return xn;
                else
                {
                    XmlNode tmp = GetNode(xn, nodeName, innerText);
                    if (tmp != null) return tmp;
                }
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="innerText">节点内容</param>
        public static XmlNode GetNode(XmlDocument xDoc, string nodeName, string innerText)
        {
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            foreach (XmlNode xns in nlst)  // 遍历所有子节点
            {
                if (xns.Name.ToLower() == nodeName.ToLower() && xns.InnerText == innerText) return xns;
                XmlNode tmp = GetNode(xns, nodeName, innerText);
                if (tmp != null) return tmp;
            }
            return null;
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="xpar">XML参数</param>
        public static XmlNode GetNode(XmlDocument xDoc, XmlParameter xpar)
        {
            return GetNode(xDoc, xpar.Name, xpar.InnerText);
        }
        /// <summary>
        /// 获取指定节点名称的节点对象
        /// </summary>
        /// <param name="node">节点对象</param>
        /// <param name="xpar">XML参数</param>
        public static XmlNode GetNode(XmlNode node, XmlParameter xpar)
        {
            return GetNode(node, xpar.Name, node.InnerText);
        }
        #endregion

        #region UpdateNode
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="node">修改的节点对象</param>
        /// <param name="para">XML参数对象</param>
        public static void UpdateNode(XmlNode node, XmlParameter para)
        {
            node.InnerText = para.InnerText;
            for (int i = 0; i < para.Attributes.Length; i++)
            {
                node.Attributes.Item(i).Value = para.Attributes[i].Value;
            }
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="node">父节点对象</param>
        /// <param name="childIndex">该节点的索引</param>
        /// <param name="nodeText">修改后的内容</param>
        public static void UpdateNode(XmlNode node, int childIndex, string nodeText)
        {
            node.ChildNodes[childIndex].InnerText = nodeText;
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="node">修改的节点对象</param>
        /// <param name="nodeText">修改后的内容</param>
        public static void UpdateNode(XmlNode node, string nodeText)
        {
            node.InnerText = nodeText;
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="xDoc">XMLDocument对象</param>
        /// <param name="para">XML参数对象</param>
        public static void UpdateNode(XmlDocument xDoc, int Index, XmlParameter para)
        {
            XmlNode node = GetNode(xDoc, Index, para.Name);
            UpdateNode(node, para);
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="xDoc">XMLDocument对象</param>
        /// <param name="nodeName">父节点名称</param>
        /// <param name="childIndex">该节点的索引</param>
        /// <param name="nodeText">修改后的内容</param>
        /// <param name="nodeValue">修改后的值，如果没有，那么该值为null</param>
        public static void UpdateNode(XmlDocument xDoc, int Index, string nodeName, int childIndex, string nodeText)
        {
            XmlNode node = GetNode(xDoc, Index, nodeName);
            UpdateNode(node, childIndex, nodeText);
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="xDoc">XMLDocument对象</param>
        /// <param name="nodeName">修改的节点名称</param>
        /// <param name="nodeText">修改后的内容</param>
        /// <param name="nodeValue">修改后的值，如果没有，那么该值为null</param>
        public static void UpdateNode(XmlDocument xDoc, int Index, string nodeName, string nodeText)
        {
            XmlNode node = GetNode(xDoc, Index, nodeName);
            UpdateNode(node, nodeText);
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="para">XML参数对象</param>
        public static void UpdateNode(string fileFullName, int Index, XmlParameter para)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            UpdateNode(xDoc, Index, para);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">父节点名称</param>
        /// <param name="childIndex">该节点的索引</param>
        /// <param name="nodeText">修改后的内容</param>
        public static void UpdateNode(string fileFullName, int Index, string nodeName, int childIndex, string nodeText)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            UpdateNode(xDoc, Index, nodeName, childIndex, nodeText);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 修改节点的内容
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">修改的节点名称</param>
        /// <param name="nodeText">修改后的内容</param>
        public static void UpdateNode(string fileFullName, int Index, string nodeName, string nodeText)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            UpdateNode(xDoc, Index, nodeName, nodeText);
            xDoc.Save(fileFullName);
        }
        #endregion

        #region DeleteNode
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="Index">节点索引</param>
        public static void DeleteNode(XmlDocument xDoc, int Index)
        {
            XmlNodeList nlst = xDoc.DocumentElement.ChildNodes;
            nlst[Index].ParentNode.RemoveChild(nlst[Index]);
        }
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="Index">节点索引</param>
        public static void DeleteNode(string fileFullName, int Index)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            DeleteNode(xDoc, Index);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="xns">需要删除的节点对象</param>
        public static void DeleteNode(XmlDocument xDoc, params XmlNode[] xns)
        {
            foreach (XmlNode xnl in xns)
            {
                foreach (XmlNode xn in xDoc.DocumentElement.ChildNodes)
                {
                    if (xnl.Equals(xn))
                    {
                        xn.ParentNode.RemoveChild(xn);
                        break;
                    }
                }
            }
        }
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="xns">需要删除的节点对象</param>
        public static void DeleteNode(string fileFullName, params XmlNode[] xns)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            DeleteNode(xDoc, xns);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="nodeText">节点内容</param>
        public static void DeleteNode(XmlDocument xDoc, string nodeName, string nodeText)
        {
            foreach (XmlNode xn in xDoc.DocumentElement.ChildNodes)
            {
                if (xn.Name == nodeName)
                {
                    if (xn.InnerText == nodeText)
                    {
                        xn.ParentNode.RemoveChild(xn);
                        return;
                    }
                }
                else
                {
                    XmlNode node = GetNode(xn, nodeName);
                    if (node != null && node.InnerText == nodeText)
                    {
                        node.ParentNode.ParentNode.RemoveChild(node.ParentNode);
                        return;
                    }
                }
            }
        }
        /// <summary>
        /// 删除节点
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="nodeText">节点内容</param>
        public static void DeleteNode(string fileFullName, string nodeName, string nodeText)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            DeleteNode(xDoc, nodeName, nodeText);
            xDoc.Save(fileFullName);
        }
        #endregion

        #region SetAttribute
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="node">节点对象</param>
        /// <param name="attps">属性参数</param>
        public static void SetAttribute(XmlNode node, params AttributeParameter[] attps)
        {
            XmlElement xe = (XmlElement)node;
            foreach (AttributeParameter attp in attps)
            {
                xe.SetAttribute(attp.Name, attp.Value);
            }
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="node">节点对象</param>
        /// <param name="attributeName">属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void SetAttribute(XmlNode node, string attributeName, string attributeValue)
        {
            XmlElement xe = (XmlElement)node;
            xe.SetAttribute(attributeName, attributeValue);
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="elem">元素对象</param>
        /// <param name="attps">属性参数</param>
        public static void SetAttribute(XmlElement elem, params AttributeParameter[] attps)
        {
            foreach (AttributeParameter attp in attps)
            {
                elem.SetAttribute(attp.Name, attp.Value);
            }
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="elem">元素对象</param>
        /// <param name="attributeName">属性名称</param>
        /// <param name="attributeValue">属性值</param>
        public static void SetAttribute(XmlElement elem, string attributeName, string attributeValue)
        {
            elem.SetAttribute(attributeName, attributeValue);
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="xpara">XML参数</param>
        /// <param name="attps">属性参数</param>
        public static void SetAttribute(XmlDocument xDoc, XmlParameter xpara, params AttributeParameter[] attps)
        {
            XmlElement xe = (XmlElement)GetNode(xDoc, xpara);
            if (xe == null) return;
            SetAttribute(xe, attps);
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="xDoc">XmlDocument对象</param>
        /// <param name="xpara">XML参数</param>
        /// <param name="newValue">新属性值</param>
        public static void SetAttribute(XmlDocument xDoc, XmlParameter xpara, string attributeName, string newValue)
        {
            XmlElement xe = (XmlElement)GetNode(xDoc, xpara);
            if (xe == null) return;
            SetAttribute(xe, attributeName, newValue);
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="xpara">XML参数</param>
        /// <param name="newValue">新属性值</param>
        public static void SetAttribute(string fileFullName, XmlParameter xpara, string attributeName, string newValue)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            SetAttribute(xDoc, xpara, attributeName, newValue);
            xDoc.Save(fileFullName);
        }
        /// <summary>
        /// 修改属性值
        /// </summary>
        /// <param name="fileFullName">文件名称，包括完整路径</param>
        /// <param name="xpara">XML参数</param>
        /// <param name="attps">属性参数</param>
        public static void SetAttribute(string fileFullName, XmlParameter xpara, params AttributeParameter[] attps)
        {
            XmlDocument xDoc = xmlDoc(fileFullName);
            SetAttribute(xDoc, xpara, attps);
            xDoc.Save(fileFullName);
        }
        #endregion
    }

    public sealed class XmlParameter
    {
        private string name;
        private string innerText;
        private string namespaceOfPrefix;
        private AttributeParameter[] attributes;

        public XmlParameter()
        {
            //
            // TODO: Add constructor logic here
            //
            this.namespaceOfPrefix = null;
        }

        public XmlParameter(string name, params AttributeParameter[] attParas)
        {
            this.name = name;
            this.namespaceOfPrefix = null;
            this.attributes = attParas;
        }


        public XmlParameter(string name, string innerText, params AttributeParameter[] attParas)
        {
            this.name = name;
            this.innerText = innerText;
            this.namespaceOfPrefix = null;
            this.attributes = attParas;
        }

        public XmlParameter(string name, string innerText, string namespaceOfPrefix, params AttributeParameter[] attParas)
        {
            this.name = name;
            this.innerText = innerText;
            this.namespaceOfPrefix = namespaceOfPrefix;
            this.attributes = attParas;
        }

        public string Name
        {
            get { return this.name; }
            set { this.name = value; }
        }

        public string InnerText
        {
            get { return this.innerText; }
            set { this.innerText = value; }
        }

        public string NamespaceOfPrefix
        {
            get { return this.namespaceOfPrefix; }
            set { this.namespaceOfPrefix = value; }
        }

        public AttributeParameter[] Attributes
        {
            get { return this.attributes; }
            set { this.attributes = value; }
        }
    }

    public sealed class AttributeParameter
    {
        private string name;
        private string value;

        public AttributeParameter()
        {
            //
            // TODO: Add constructor logic here
            //
        }
        public AttributeParameter(string attributeName, string attributeValue)
        {
            this.name = attributeName;
            this.value = attributeValue;
        }
        public string Name
        {
            get { return this.name; }
            set { this.name = value; }
        }
        public string Value
        {
            get { return this.value; }
            set { this.value = value; }
        }
    }

}