一个是对于带有命名空间的xml进行操作

今天想写一个可以生成excel　xml 格式的类库，可是对于xml的操作语法不熟悉，所以试了又试，
一个是替换节点
一个是对于带有命名空间的xml进行操作。

static void XmlTest1()
        {
            //替换节点
            System.Xml.XmlDocument doc = new XmlDocument();
            doc.AppendChild(doc.CreateElement("Root"));
            doc.DocumentElement.AppendChild(doc.CreateElement("sub"));
            XmlNode node1 = doc.CreateElement("sub1");

            System.Xml.XmlDocument doc2 = new XmlDocument();
            XmlNode node2 = doc2.CreateElement("sub2");

            doc.DocumentElement.ReplaceChild(node1,doc.DocumentElement.SelectSingleNode("sub"));
            //doc.DocumentElement.ReplaceChild(node2,doc.DocumentElement.SelectSingleNode("sub"));
            
            doc.Save("xml.xml");
        }
        static void XmlTest2()
        {
            //对具有命名空间的xml进行操作
            System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
            System.Xml.XmlNamespaceManager xm = new System.Xml.XmlNamespaceManager(doc.NameTable);            
            xm.AddNamespace("o","urn:schemas-microsoft-com:office:office");
            xm.AddNamespace("x","urn:schemas-microsoft-com:office:excel");
            xm.AddNamespace("s","urn:schemas-microsoft-com:office:spreadsheet");
            doc.AppendChild(doc.CreateXmlDeclaration("1.0","",""));
            doc.AppendChild(doc.CreateProcessingInstruction("mso-application","progid=\"Excel.Sheet\""));
            
            System.Xml.XmlNode  node = doc.CreateNode(System.Xml.XmlNodeType.Element,"s","RootNode",xm.LookupNamespace("s"));

            XmlAttribute NewAttribute = doc.CreateAttribute("xmlns:x");
            NewAttribute.Value = xm.LookupNamespace("x");
            node.Attributes.SetNamedItem(NewAttribute);

            NewAttribute = doc.CreateAttribute("xmlns:o");
            NewAttribute.Value = xm.LookupNamespace("o");
            node.Attributes.SetNamedItem(NewAttribute);
            
            doc.AppendChild(node);            
            doc.DocumentElement.AppendChild(doc.CreateElement("s","test",xm.LookupNamespace("s")));
            doc.DocumentElement.AppendChild(doc.CreateElement("x","test",xm.LookupNamespace("x")));
            doc.Save("xml.xml");

            XmlNode  objNode = doc.DocumentElement.SelectSingleNode("s:test",xm);
        }

static void XmlTest1()
        {
            //替换节点
            System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
            doc.AppendChild(doc.CreateElement("Root"));
            doc.DocumentElement.AppendChild(doc.CreateElement("sub"));
            XmlNode node1 = doc.CreateElement("sub1");

            System.Xml.XmlDocument doc2 = new XmlDocument();
            XmlNode node2 = doc2.CreateElement("sub2");

            //doc.DocumentElement.ReplaceChild(node1,doc.DocumentElement.SelectSingleNode("sub"));

            System.Xml.XmlNode  node3 = doc.ReadNode(new System.Xml.XmlTextReader(new System.IO.StringReader(node2.OuterXml)));
            doc.DocumentElement.ReplaceChild(node3,doc.DocumentElement.SelectSingleNode("sub"));
            doc.DocumentElement.AppendChild(node3);
            
            doc.Save("xml.xml");
        }