xml 文件读写 c#&C++

XmlDocument和XDocument
 1         private void button1_Click(object sender, EventArgs e)
 2         {
 3             XmlDocument doc = new XmlDocument();
 4             XmlDeclaration xdc= doc.CreateXmlDeclaration("1.0", "utf-8", null);
 5             XmlElement rootelement = doc.CreateElement("Nodes");
 6             XmlElement ele1 = doc.CreateElement("Node");
 7             ele1.InnerText = "hello";
 8             ele1.SetAttribute("ID", "1");
 9             rootelement.AppendChild(ele1);
10             doc.AppendChild(xdc);
11             doc.AppendChild(rootelement);
12             doc.Save("a.xml");
13         }
14 
15         private void button2_Click(object sender, EventArgs e)
16         {
17             XDocument doc = new XDocument(
18                  new XElement("root",
19                  new XAttribute("name", "value"),
20                  new XElement("child", "text node")));
21             doc.Save("b.xml");
22         }