C# 读取xml格式的字符串

参考网站：http://blog.csdn.net/mevin/article/details/6620060

string str =“<resultInfo code=\"202\" message=\"原密码输入不正确！\"/>”;

XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.LoadXml(str);
                String code = xmlDoc.FirstChild.Attributes["code"].Value.ToString();