unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  a, y: integer;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
a := 10;
y := 10;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
x: TEdit;

begin
x := TEdit.Create(self);
x.Parent := Form1;
x.Top := y;
x.Left := a;
a := a + 20;
y := y + 20;
end;

end.