string 转化 xml，并找到指定节点及节点值

            //这是一个符合xml格式的字符串string xml = "<xmn> <people><name>zs</name><age>22</age></people> <people><name>ls</name><age>23</age></people> </xmn>";//将string 转化为 XmlDocument对象的xml格式XmlDocument xmlDoc = new XmlDocument();xmlDoc.LoadXml(xml);//查找单节点SelectSingleNode,如果存在多个相同节点，默认查找第一个XmlNode nameNode = xmlDoc.SelectSingleNode("//name");   string name = nameNode.InnerText;   //zs//查找所有节点XmlNodeList nameNodeList = xmlDoc.SelectNodes("//people");//遍历取值foreach (XmlNode nameInfo in nameNodeList){string nameValue = (nameInfo.SelectSingleNode("name")).InnerText;}