TreeNode treenode1=new TreeNode();
treenode1.Text="nihao";TreeNode treenode2=new TreeNode();
treenode2.Text="wobuhao";treenode1.Nodes.Add(treenode2);treename.Nodes.Add(treenode1);
treenode1.Text="nihao";TreeNode treenode2=new TreeNode();
treenode2.Text="wobuhao";treenode1.Nodes.Add(treenode2);treename.Nodes.Add(treenode1);
如何设置这个节点的图呢?