public static XmlDocument getDoc(String path)//加载xml文档 { XmlDocument doc = new XmlDocument(); doc.Load(path); return doc; } /// 
 /// 返回找到的节点下标 /// 
 /// xml文件路径 /// 书名 ///  public static int getPosition(String path,string node, String bname) { int i; XmlDocument doc = new XmlDocument(); doc.Load(path); XmlNodeList nodeList = doc.SelectSingleNode(node).ChildNodes; for (i = 0; i 

 /// 
 /// 遍历数据 /// 
 ///  ///  protected void btnRead_Click(object sender, EventArgs e) { XmlDocument doc = getDoc("books.xml");//加载xml文档，books文件存放于 foreach (XmlElement root in doc.DocumentElement.ChildNodes)//遍历根的子节点 { Response.Write(""); Response.Write("");//节点名root.Name book foreach (XmlElement item in root.ChildNodes) { Response.Write("");//输出节点名和文本节点的值 Response.Write(""); } } } 

 /// 
 /// 查找 /// 
 /// 文件路径 /// 节点 /// 查找关键字 /// XmlNode public static XmlNode Find(string path,string node,string bname) { XmlDocument doc = new XmlDocument(); doc.Load(path);//加载xml文档 XmlNodeList nodeList = doc.SelectSingleNode(node).ChildNodes; int i = getPosition(path, node, bname);// if (i >= 0) return nodeList[i]; else return null; } 

 /// 
 /// 删除元素、属性 /// 
 /// 文件 /// 指定节点的父节点 /// 为空时删除节点，否则删除属性 ///  public static void Delete(string path,string node,string attribute,string bname) { XmlDocument doc = new XmlDocument(); doc.Load(path); XmlNode root = doc.SelectSingleNode(node); XmlNodeList nodeList = doc.SelectSingleNode(node).ChildNodes; int i = getPosition(path, node, bname);//返回指定的节点下标 if (i >= 0) { if (attribute.Equals("")) { root.RemoveChild(nodeList[i]); } else { XmlElement xn = (XmlElement)nodeList[i]; xn.RemoveAttribute(attribute); } } doc.Save(path); } 

 /// 
 /// 添加元素值 /// 
 ///  ///  ///  ///  /// 插入的下标，如果为负，默认从最后一个节点插入 ///  public static bool Add(string path,string node,string element,string value,int i) { XmlDocument doc = new XmlDocument(); doc.Load(path); XmlNodeList nodeList = doc.SelectNodes(node); XmlNode newNode = doc.SelectSingleNode(node).LastChild; if (i <0 || i> nodeList.Count-1)//如果小于0或者大于节点长度，默认从最后一个节点添加 { XmlElement newElement = doc.CreateElement(element);//创建元素 newElement.InnerText = value;//赋值 newNode.AppendChild(newElement); } else { XmlElement newElement = doc.CreateElement(element); newElement.InnerText = value; nodeList[i - 1].AppendChild(newElement); } doc.Save(path); return true; }