C#使用XmlDocument通过XPath获取单个节点的值
public static Survey GetSurvey(string groupName, string surveyName) {
XmlDocument xmlSurveys = new XmlDocument();
xmlSurveys.Load(filename);
XmlNode xmlNode = (XmlNode) xmlSurveys.SelectNodes("//Survey[@name='"+surveyName+"']").Item(0);
...
}
