根据节点解析xml

<?xml version="1.0" encoding="gb2312" ?>
<root>  
  <person name="WangYao">  
    <age>25</age>  
  </person>  
  <person name="Jobs">  
    <age>56</age>  
  </person>  
</root>

            XmlDocument doc = new XmlDocument();
            doc.Load("config.xml");    //加载Xml文件  
            XmlElement rootElem = doc.DocumentElement;   //获取根节点  
            XmlNodeList personNodes = rootElem.GetElementsByTagName("person"); //获取person子节点集合  
            foreach (XmlNode node in personNodes)
            {
                string strName = ((XmlElement)node).GetAttribute("name");   //获取name属性值  
                Console.WriteLine(strName);
                XmlNodeList subAgeNodes = ((XmlElement)node).GetElementsByTagName("age");  //获取age子XmlElement集合  
                if (subAgeNodes.Count == 1)
                {
                    string strAge = subAgeNodes[0].InnerText;
                    Console.WriteLine(strAge);
                }
            }
            Console.ReadLine();