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Ttreeview 

 treeview.items.addchild(nil(Éϼ¶½Úµã),'°¸·¢Ê±·¢'(text));

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TTreeView

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procedure TForm1.FormCreate(Sender: TObject);
var
  Nodes: TTreeNodes;
  node: TTreeNode;
begin
  TreeView1.Align := alLeft;
  Nodes := TreeView1.Items;
  node := Nodes.Add(nil, 'aaa');
  node := Nodes.AddChild(node, '111');
  node := Nodes.AddChild(node, 'AAA');
  node := Nodes.AddChild(node, 'BBB');
  Nodes.Add(node, 'CCC');
  Nodes.Add(node, 'DDD');
  Nodes.Add(node, 'EEE');
  node := node.Parent;
  Nodes.Add(node, '222');
  Nodes.Add(node, '333');
  node := node.Parent;
  Nodes.Add(node, 'WWW');
  Nodes.Add(node, 'QQQ');
  node := node.Parent;
  Nodes.Add(node, 'LLL');
end;

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