摘录-IT企业必读的200个.NET面试题-10 XML的应用和处理

class Program
    {
        static void Main(string[] args)
        {
            string xmlPath = "Test.xml";
            XmlDocument xml = new XmlDocument();
            xml.Load(xmlPath);
            Console.WriteLine("原来的XML文档是：");
            PrintXmlDocument(xml);
            Console.WriteLine("新建节点后：");
            AddNode(xml);
            PrintXmlDocument(xml);
            Console.WriteLine("编辑节点后：");
            EditNode(xml);
            PrintXmlDocument(xml);
            Console.ReadLine();
        }

        static void PrintXmlDocument(XmlDocument xml)
        {
            xml.Save(Console.Out);
            Console.WriteLine();
        }

        static void AddNode(XmlDocument xml)
        {
            XmlNode newNode = xml.CreateElement("Book");
            XmlAttribute newAttribute = xml.CreateAttribute("name");
            newAttribute.Value = "book3";
            newNode.Attributes.Append(newAttribute);

            XmlNode auth = xml.CreateElement("Auth");
            auth.InnerText = "z3";
            XmlNode date = xml.CreateElement("Date");
            date.InnerText = "2011-10-1";
            newNode.AppendChild(auth);
            newNode.AppendChild(date);
            xml.DocumentElement.AppendChild(newNode);
        }

        static void EditNode(XmlDocument xml)
        {
            XmlNode node = xml.DocumentElement;
            XmlNode editNode = node.ChildNodes[node.ChildNodes.Count - 1];
            editNode.Attributes["name"].Value = "book4";
            editNode.SelectSingleNode("Auth").InnerText = "z4";
            editNode.SelectSingleNode("Date").InnerText = "2012-09-18";
        }

        static void DeleteNode(XmlDocument xml)
        {
            XmlNode node = xml.DocumentElement;
            XmlNode removeNode = node.ChildNodes[node.ChildNodes.Count - 1];
            removeNode.Attributes.RemoveAt(0);
            node.RemoveChild(removeNode);
        }
    }