C# 解析xml格式接口数据

            List OrderInfoEntityList = new List();
            List MedItemList = new List();
            List MedItemDoseList = new List();

            XmlDocument doc = new XmlDocument();
            doc.LoadXml(message);

            XmlNodeList OrderInfoList = doc.SelectNodes("OrderInfo");
            foreach (XmlNode OrderInfo in OrderInfoList)
            {
                OrderInfoEntity medicineHisData1Entity = new OrderInfoEntity();
                medicineHisData1Entity.Uuid = Guid.NewGuid().ToString();
                medicineHisData1Entity.HsptCd = OrderInfo.ChildNodes[0].InnerText;
                medicineHisData1Entity.DptmtCd = OrderInfo.ChildNodes[1].InnerText;
                medicineHisData1Entity.WardCd = OrderInfo.ChildNodes[2].InnerText;
                medicineHisData1Entity.DataClsf = OrderInfo.ChildNodes[3].InnerText;
                medicineHisData1Entity.InOutClsf = OrderInfo.ChildNodes[4].InnerText;
                medicineHisData1Entity.OrderDt = OrderInfo.ChildNodes[5].InnerText;
                medicineHisData1Entity.OrderDtm = OrderInfo.ChildNodes[6].InnerText;
                medicineHisData1Entity.OrderNum = OrderInfo.ChildNodes[7].InnerText;
                medicineHisData1Entity.RoomNum = OrderInfo.ChildNodes[8].InnerText;
                medicineHisData1Entity.PtntNm = OrderInfo.ChildNodes[9].InnerText;
                medicineHisData1Entity.PtntNum = OrderInfo.ChildNodes[10].InnerText;
                medicineHisData1Entity.Sex = OrderInfo.ChildNodes[11].InnerText;
                medicineHisData1Entity.DoctorNm = OrderInfo.ChildNodes[12].InnerText;
                medicineHisData1Entity.Birthday = OrderInfo.ChildNodes[13].InnerText;
                medicineHisData1Entity.PtntAddr = OrderInfo.ChildNodes[14].InnerText;
                medicineHisData1Entity.PtntTel = OrderInfo.ChildNodes[15].InnerText;                
                medicineHisData1Entity.flag = 0;
                bool ifHasHospitalCode = false;
                for (int i = 0; i < OrderInfo.ChildNodes.Count; i++)
                {
                    XmlNode MedItem = OrderInfo.ChildNodes[i];
                    if (MedItem.Name == "MedItem")
                    {
                        MedItemEntity medItemEntity = new MedItemEntity();
                        medItemEntity.Uuid = Guid.NewGuid().ToString();
                        medItemEntity.MedCd = MedItem.ChildNodes[0].InnerText;
                        medItemEntity.MedNm = MedItem.ChildNodes[1].InnerText;
                        medItemEntity.MedNote = MedItem.ChildNodes[2].InnerText;
                        medItemEntity.MedSpec = MedItem.ChildNodes[3].InnerText;
                        medItemEntity.MedUnit = MedItem.ChildNodes[4].InnerText;
                        medItemEntity.UseAtcYn = MedItem.ChildNodes[5].InnerText;
                        medItemEntity.OrderInfoId = medicineHisData1Entity.Uuid;
                        MedItemList.Add(medItemEntity);

                        for(int j=0;j< MedItem.ChildNodes.Count; j++)
                        {
                            XmlNode MedItemDose = MedItem.ChildNodes[j];
                            if (MedItemDose.Name == "MedItemDose")
                            {
                                MedItemDoseEntity medItemDoseEntity = new MedItemDoseEntity();
                                medItemDoseEntity.Uuid = Guid.NewGuid().ToString();
                                medItemDoseEntity.DoseList = MedItemDose.ChildNodes[0].InnerText;
                                medItemDoseEntity.TakeDays = MedItemDose.ChildNodes[1].InnerText;
                                medItemDoseEntity.TakeDt = MedItemDose.ChildNodes[2].InnerText;
                                medItemDoseEntity.DrtsCd = MedItemDose.ChildNodes[3].InnerText;
                                medItemDoseEntity.MedItemId = medItemEntity.Uuid;
                                MedItemDoseList.Add(medItemDoseEntity);

                            }

                        }

                    }
                    if (MedItem.Name == "HospitalCode")
                    {
                        ifHasHospitalCode = true;
                    }
                }
                if (ifHasHospitalCode)
                {
                    medicineHisData1Entity.HospitalCode = OrderInfo.ChildNodes[16].InnerText;
                }
                else
                {
                    medicineHisData1Entity.HospitalCode = "000";
                }
                OrderInfoEntityList.Add(medicineHisData1Entity);

            }