.Net Systml.Xml对xml的操作

 1         XmlReader reader = XmlReader.Create(filename);
2            DataSet ds = new DataSet();
3            ds.ReadXml(filename);
4            XmlWriterSettings ws = new XmlWriterSettings();
5            ws.Indent = true;
6            XmlWriter writer = XmlWriter.Create(output, ws);
7            while (reader.Read())
8            {
9                switch (reader.NodeType)
10                {
11                    case XmlNodeType.Element:
12                        writer.WriteString(reader.Name);
13                        break;
14                    case XmlNodeType.Text:
15                        writer.WriteString(reader.Value);
16                        break;
17                    case XmlNodeType.XmlDeclaration:
18                    case XmlNodeType.ProcessingInstruction:
19                        writer.WriteProcessingInstruction(reader.Name, reader.Value);
20                        break;
21                    case XmlNodeType.Comment:
22                        writer.WriteComment(reader.Value);
23                        break;
24                    case XmlNodeType.EndElement:
25                        writer.WriteFullEndElement();
26                        break;
27                }
28            }
29