xml操作

     protected void Button1_Click(object sender, EventArgs e)
        {
            //为response(star)节点 和  Cabins(f) cabin节点分别添加个
            string Response = "<TargetResponse> <Response mark=/"a/" test=/"E/"> <Cabins> <Cw C=/"L/" N=/"A/" D=/"75/" P=/"850/" K=/"6.5/" />  <Cw C=/"K/" N=/"A/" D=/"80/" P=/"900/" K=/"6.5/" />  </Cabins></Response> <Response mark=/"b/" test=/"E/"> <Cabins>  <Cw C=/"H/" N=/"A/" D=/"80/" P=/"900/" K=/"5/" />   <Cw C=/"B/" N=/"A/" D=/"90/" P=/"1020/" K=/"5/" />   <Cw C=/"Y/" N=/"A/" D=/"100/" P=/"1130/" K=/"5/" /> <Cw C=/"F/" N=/"A/" D=/"150/" P=/"1700/" K=/"6.4/" />   </Cabins>  </Response></TargetResponse>";
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.LoadXml(Response);
            XmlNodeList xnlist = xmlDoc.SelectSingleNode("TargetResponse").ChildNodes;
            foreach (XmlNode xn in xnlist)
            {
                XmlElement xnResponse = (XmlElement)xn;
                XmlNodeList xnCabins = xn.SelectSingleNode("Cabins").ChildNodes;
                XmlAttribute attrstart = xmlDoc.CreateAttribute("star");//创建节点
                XmlAttribute attrCabin = xmlDoc.CreateAttribute("F");//创建节点
                string scity = "";

                foreach (XmlNode xmlnode in xnCabins)
                {
                    XmlAttribute attrF = xmlDoc.CreateAttribute("F");
                    XmlElement xmlelement = (XmlElement)xmlnode;

                    //给相应的节点赋值
                    attrF.Value = xnResponse.Attributes["mark"].Value;
                    attrCabin.Value = xnResponse.Attributes["mark"].Value;
                    xmlnode.Attributes.Append(attrF);
                    xmlnode.ParentNode.Attributes.Append(attrCabin);
                    scity = "f";
                }
                attrstart.Value = scity;
                xn.Attributes.Append(attrstart);
            }

            string newa = xmlDoc.OuterXml;

 

            XmlNodeList nodlist = xmlDoc.SelectSingleNode("/TargetResponse").ChildNodes;
            if (nodlist != null)
            {
                foreach (XmlNode xnod in nodlist)
                {
                    string mark = xnod.Attributes["mark"].Value;
                    string test = xnod.Attributes["test"].Value;
                    XmlNodeList cabinnodelist = xnod.SelectSingleNode("//Cabins[@F='" + mark + "']").ChildNodes;
                    for (int i = 0; i < cabinnodelist.Count; i++)
                    {
                        int d = Convert.ToInt32(cabinnodelist[i].Attributes["D"].Value);
                        int p = Convert.ToInt32(cabinnodelist[i].Attributes["P"].Value);
                        if (cabinnodelist[i].Attributes["Y"] == null)
                        {
                            XmlAttribute Y = xmlDoc.CreateAttribute("Y");
                            cabinnodelist[i].Attributes.Append(Y);
                        }
                        if (cabinnodelist[i].Attributes["C"].Value == "L")
                        {
                            cabinnodelist[i].Attributes["Y"].Value =( d + p).ToString();
                        }

                    }
                }
            }
        }

 

 

      /// <summary>
        /// 添加子元素(XML)
        /// </summary>
        /// <param name="doc">xml文档对象</param>
        /// <param name="nodeParent">父节点元素</param>
        /// <param name="strTag">子节点名称</param>
        /// <param name="strValue">子节点值</param>
        /// <returns>子节点元素</returns>
        public static XmlElement AddTextElement(XmlDocument doc,
            XmlElement nodeParent,
            string strTag,
            string strValue)
        {
            #region  添加子元素
            //通过传入的标签，创建一个新元素
            XmlElement nodeElem = doc.CreateElement(strTag);
            //通过传入的值，创建一个文本节点
            XmlText nodeText = doc.CreateTextNode(strValue);
            // 将此元素作为一个子元素添加到一个元素上
            nodeParent.AppendChild(nodeElem);
            // 将文本节点添加到此元素的子节点中
            nodeElem.AppendChild(nodeText);
            return nodeElem;
            #endregion
        }

 

 

  model.PNR = Convert.ToString(xmlDoc.GetElementsByTagName("PNR").Item(0).InnerText);