unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
function SumCount(n:integer):integer;
begin
if n=1 then
result:=1
else
result:=SumCount(n-1)*n;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
showmessage('5!='+inttostr(sumcount(5)));
end;
end.