Talking الة حاسبة بسيطة مع الدلفي

unit Unit1;

interface

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

type
TForm1 = class(TForm)
btn1: TButton;
edt1: TEdit;
btn2: TButton;
btn3: TButton;
btn4: TButton;
btn5: TButton;
btn6: TButton;
btn7: TButton;
btn8: TButton;
btn9: TButton;
btn10: TButton;
btn11: TButton;
btn12: TButton;
procedure btn1Click(Sender: TObject);
procedure btn10Click(Sender: TObject);
procedure btn2Click(Sender: TObject);
procedure btn3Click(Sender: TObject);
procedure btn12Click(Sender: TObject);
procedure btn4Click(Sender: TObject);
procedure btn5Click(Sender: TObject);
procedure btn6Click(Sender: TObject);
procedure btn7Click(Sender: TObject);
procedure btn8Click(Sender: TObject);
procedure btn9Click(Sender: TObject);
procedure btn11Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;
var z,x,c: Integer;
implementation

{$R *.dfm}

procedure TForm1.btn1Click(Sender: TObject);
begin

edt1.Text:='1';
end;

procedure TForm1.btn10Click(Sender: TObject);
begin
x:=StrToInt(edt1.text);
edt1.Text:='';

end;

procedure TForm1.btn2Click(Sender: TObject);
begin
edt1.Text:='2';
end;

procedure TForm1.btn3Click(Sender: TObject);
begin
edt1.Text:='3';
end;

procedure TForm1.btn12Click(Sender: TObject);
begin
z:=StrToInt(edt1.Text) ;
c:=z+x;
edt1.Text:=IntToStr(c);
end;

procedure TForm1.btn4Click(Sender: TObject);
begin
edt1.Text:='4';
end;

procedure TForm1.btn5Click(Sender: TObject);
begin
edt1.Text:='5';
end;

procedure TForm1.btn6Click(Sender: TObject);
begin
edt1.Text:='6';
end;

procedure TForm1.btn7Click(Sender: TObject);
begin
edt1.Text:='7';
end;

procedure TForm1.btn8Click(Sender: TObject);
begin
edt1.Text:='8';
end;

procedure TForm1.btn9Click(Sender: TObject);
begin
edt1.Text:='9';
end;

procedure TForm1.btn11Click(Sender: TObject);
begin
edt1.Text:='0';
end;

end.