Delphi 过程类型

unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Buttons;
 
type
  TForm1 = class(TForm)
    SpeedButton1: TSpeedButton;
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
Type
  TMax=Function (a,b:integer):integer;
Function twoMax(a,b:integer):integer;
 begin
   Result:=a+b;
 end;
Function MaxTwo(i,y:integer;Tom:TMax):integer;
 begin
   Result:=tom(i,y);
 end;
procedure TForm1.SpeedButton1Click(Sender: TObject);
 
begin
  ShowMessage(INTTOSTR(twomax(,))+'='+INTTOSTR(MaxTwo(,,twomax)));
end;
 
end.