using System;
using System.Xml;
class XMLDemo{
[STAThread]
static void Main(string[] args) {
XmlDocument xmlDom = new XmlDocument();
xmlDom.AppendChild(xmlDom.CreateElement("", "books", ""));
XmlElement xmlRoot = xmlDom.DocumentElement;
XmlElement xmlBook;
XmlElement xmlTitle, xmlAuthor, xmlPrice;
XmlText xmlText;
xmlBook= xmlDom.CreateElement("", "A", "");
xmlBook.SetAttribute("property", "", "a");
xmlTitle = xmlDom.CreateElement("", "B", "");
xmlText = xmlDom.CreateTextNode("text");
xmlTitle.AppendChild(xmlText);
xmlBook.AppendChild(xmlTitle);
xmlRoot.AppendChild(xmlBook);
xmlAuthor = xmlDom.CreateElement("", "C", "");
xmlText = xmlDom.CreateTextNode("textg");
xmlAuthor.AppendChild(xmlText);
xmlBook.AppendChild(xmlAuthor);
xmlPrice = xmlDom.CreateElement("", "D", "");
xmlText = xmlDom.CreateTextNode("99999");
xmlPrice.AppendChild(xmlText);
xmlBook.AppendChild(xmlPrice);
xmlRoot.AppendChild(xmlBook);
Console.WriteLine(xmlDom.InnerXml);
xmlDom.Save("books.xml");
XmlDocument xmlDom2 = new XmlDocument();
xmlDom2.Load("books.xml");
Console.WriteLine(xmlDom2.InnerXml);
}
}