xml文件如下： 代码如下： XmlDocument xmlDoc = new XmlDocument(); xmlDoc.Normalize(); xmlDoc.Load(Server.MapPath(@"test.xml")); XmlNodeList nodes = xmlDoc.SelectNodes("root//sector"); foreach (XmlNode node in nodes) { node.Attributes["pic"].Value = "images//aaBig.jpg"; node.Attributes["url"].Value = "aaaBig.aspx"; } xmlDoc.Save("test.xml");