unit Unit2;

interface

uses
  Classes, SysUtils;

type
  Tthread2 = class(TThread)
  private
    { Private declarations }
  protected
    procedure Execute; override;
  end;

implementation
uses main;
{ Tthread2 }

procedure Tthread2.Execute;
begin
  {小車循環行駛}
  while not terminated do
  begin
    { Place thread code here }
    Form1.Image2.Left := Form1.Image2.Left - 1;
    if Form1.Image2.Left <= -38 then
    begin
      Form1.Image2.Left := 496;
    end;
    sleep(5);
  end;
end;

end.