ASP.NET XmlDocument类详解

            doc.Load(@"C:UsersAdministratorDesktopConsoleApplication1ConsoleApplication1Test.xml");     //加载xml文件

            XmlNode node1 = doc.CreateNode(XmlNodeType.Element, "pagecount", null);
            node1.InnerText = "222";
            doc.SelectSingleNode("/bookstore").AppendChild(node1); //执行之后 <pagecount>222</pagecount>元素被添加到</bookstore>前面
            doc.Save(@"D:123.xml");

            XmlNode node2 = doc.SelectSingleNode("/bookstore/book[1]/title[1]").Clone();    //克隆一个节点出来
            Console.WriteLine(node2.InnerText);     //输出三国演义

            XmlNode node3 = doc.SelectSingleNode("/bookstore/book[1]/title[1]").CloneNode(true);   //参数决定是否克隆子节点数(如果false，文本节点也不克隆)
            Console.WriteLine(node3.InnerText);     //输出三国演义

            XmlAttribute attr = doc.CreateAttribute("age");     //创建一个age属性
            attr.Value = "23";
            doc.SelectSingleNode("/bookstore/book[1]/author[1]").Attributes.Append(attr);   //执行之后第一个作者变为 <author age="23">罗贯中</author>
            doc.Save(@"D:123.xml");

            XmlCDataSection cdata = doc.CreateCDataSection("我&你");
            doc.SelectSingleNode("/bookstore/book[1]/author[1]").AppendChild(cdata);        //执行之后author变为<author age="23">罗贯中<![CDATA[我&你]]></author>
            doc.Save(@"D:123.xml");

            XmlComment com = doc.CreateComment("2013-2-27 22:37:25");
            doc.SelectSingleNode("/bookstore/book[1]/title[1]").AppendChild(com);   //执行之后title变为<title lang="属性1">三国演义<!--2013-2-27 22:37:25--></title>
            doc.Save(@"D:123.xml");