инфа л.р 3 / л.р. 3 / 2 / Unit1

unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Edit1: TEdit;
Edit2: TEdit;
Label3: TLabel;
Label4: TLabel;
Edit3: TEdit;
Button1: TButton;
Label5: TLabel;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
x, y, z : real;
begin
x:=StrToFloat(Edit1.Text);
y:=StrToFloat(Edit2.Text);
Label4.Caption:='Вы ввели х='+FloatToStr(x)+' y='+FloatToStr(y);
z:=x+y;
Edit3.Text:=FloatToStr(z);
end;

end.