zander Q20

unit question20_u;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.Samples.Spin;

type
  TForm1 = class(TForm)
    Button1: TButton;
    SpinEdit1: TSpinEdit;
    Edit1: TEdit;
    Edit2: TEdit;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
iInput , K , iValue ,I , ISum: integer ;
begin
Isum:= 0;
 iInput := SpinEdit1.Value;
   iValue := 1;
   if iInput = 0 then
    ivalue := 0
    else
 for K := 1 to iInput do
  iValue := iVAlue * K ;

  edit1.Text:= inttostr(ivalue) ;


  for I := 1 to Length(inttostr(ivalue)) do
    begin
      iSum := iSum + ivalue[I};
    end;

    edit2.Text:= inttostr(isum);
end;

end.