1 XmlDocument xml = new XmlDocument();
 2         private void Form1_Load(object sender, EventArgs e)
 3         {
 4             CreateXML();
 5             TreeNode tn = new TreeNode("魔兽");
 6             treeView1.Nodes.Add(tn);
 7             xml.Load(@"D:\XMLFile.xml");
 8             XmlNode nod = xml.DocumentElement;
 9             int i = 0;
10             foreach (XmlNode xn in nod.ChildNodes)
11             {
12                 treeView1.TopNode.Nodes.Add(xn.Attributes["two"].Value);
13
14                 foreach (XmlNode xn2 in xn.ChildNodes)
15                 {
16                     treeView1.TopNode.Nodes[i].Nodes.Add(xn2.InnerText);
17                 }
18                 i++;
19             }
20         }
21         public void CreateXML()
22         {
23             //创建xml文件
24             XmlDeclaration dec = xml.CreateXmlDeclaration("1.0", "utf-8", null);
25             xml.AppendChild(dec);
26             //添加树形字段
27             XmlElement one = xml.CreateElement("one");
28             XmlElement two = xml.CreateElement("two");
29             XmlElement two1 = xml.CreateElement("two");
30             XmlElement three = xml.CreateElement("three");
31             XmlElement threeDL = xml.CreateElement("three");
32             XmlElement three1 = xml.CreateElement("three");
33             XmlElement three10 = xml.CreateElement("three");
34             //添加树形结构关系
35             xml.AppendChild(one);
36             one.AppendChild(two);
37             one.AppendChild(two1);
38             two.AppendChild(three);
39             two.AppendChild(threeDL);
40             two1.AppendChild(three1);
41             two1.AppendChild(three10);
42             //添加属性
43             two.SetAttribute("two", "不死");
44             two1.SetAttribute("two", "暗夜");
45             //添加内容
46             three.InnerText = "DK";
47             threeDL.InnerText = "DL";
48             three1.InnerText = "DH";
49             three10.InnerText = "WD";
50             xml.Save(@"D:\XMLFile.xml");
51         }