Nasciweb Fóruns

unit Unit1;

interface

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

type
TForm1 = class(TForm)
EditNumero: TEdit;
ButtonCalcular: TButton;
LabelResultado: TLabel;
Label1: TLabel;
procedure ButtonCalcularClick(Sender: TObject);
private
public
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.ButtonCalcularClick(Sender: TObject);
var
Numero, i: Integer;
Fatorial: Int64;
begin
Numero := StrToInt(EditNumero.Text);
Fatorial := 1;

for i := 1 to Numero do
Fatorial := Fatorial * i;

LabelResultado.Caption := 'Fatorial de ' + IntToStr(Numero) + ' é ' + IntToStr(Fatorial);
end;

end.



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