Xml文件操作的其中一个使用方法：

XmlNodeList students = doc.DocumentElement.ChildNodes;//Student节点集合

foreach (XmlNode stu in students)

{

    XmlElement element = (XmlElement)stu;

    string stuId = element.GetAttribute("StuID");

    XmlNode nameNode = element.SelectSingleNode("StuName");//获取Person节点的Name节点

    string name = nameNode.InnerText;

    Console.WriteLine(stuId + "," + name);

}

案例xml文件

又一个解析xml文件的方法：

public static void WriteTOXmlStatusLog(string responseStr)
{

      string pathConfig = App.GetSetting("TracePath");
      if (!string.IsNullOrWhiteSpace(pathConfig))
      {
          try
          {
              Log4NetTraceListener log = new Log4NetTraceListener(pathConfig + @"\UserInterface");
              var doc = new System.Xml.XmlDocument();
              doc.LoadXml(responseStr); 
                string error = "";
                    var errorNode = doc.SelectSingleNode("/returnsms/errorstatus/error");
                    if (errorNode != null)
                    {
                        error = errorNode.InnerText;
                    }
                    if (string.IsNullOrWhiteSpace(error))
                    {
                        XmlNodeList callboxList = doc.DocumentElement.ChildNodes;
                        foreach (XmlNode item in callboxList)
                        {
                            XmlElement element = (XmlElement)item;
                            string mobile= element.GetElementsByTagName("mobile")[0].InnerText;
                            //string mobile = element.SelectSingleNode("/statusbox/mobile").InnerText;
                            string taskid = element.GetElementsByTagName("taskid")[0].InnerText;
                            string status = element.GetElementsByTagName("status")[0].InnerText;
                            string receivetime = element.GetElementsByTagName("receivetime")[0].InnerText;
                            string extno = element.GetElementsByTagName("extno")[0].InnerText;
                            string errorcode = element.GetElementsByTagName("errorcode")[0].InnerText;
                            log.WriteLine("获取状态报告返回xml信息：" + "mobile：" + mobile + "，taskid:" + taskid + "，status:" + status + "，receivetime:" + receivetime + ",errorcode:" + errorcode + "，extno:" + extno);
                        }

                    }
                    else
                    {
                        string remark = doc.SelectSingleNode("/returnsms/errorstatus/remark").InnerText;
                        log.WriteLine("获取状态报告返回xml信息：error:" + error + ",remark:" + remark);
                    }


                }
                catch (Exception ex)
                {

                    throw new Exception("获取xml状态报告信息写入日志出错：" + ex);
                }
}

 xml文件：

//错误时的返回
<?xml version="1.0" encoding="utf-8" ?> 
<returnsms>
<errorstatus>
<error>1</error>-------------错误码
<remark>用户名或密码不能为空</remark>-------------错误描述
</errorstatus>
</returnsms>

//正确时的返回
<?xml version="1.0" encoding="utf-8" ?> 
<returnsms>
<statusbox>
<mobile>15023239810</mobile>-------------对应的手机号码
<taskid>1212</taskid>-------------同一批任务ID
<status>10</status>---------状态报告----10：发送成功，20：发送失败
<receivetime>2011-12-02 22:12:11</receivetime>-------------接收时间
<errorcode>DELIVRD</errorcode>-上级网关返回值，不同网关返回值不同，仅作为参考
<extno>01</extno>--子号，即自定义扩展号
</statusbox>
<statusbox>
<mobile>15023239811</mobile>
<taskid>1212</taskid>
<status>20</status>
<receivetime>2011-12-02 22:12:11</receivetime>
<errorcode>2</errorcode>
<extno></extno>