Minggu, 01 Desember 2013
unit kalkulator;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Edit1: TEdit;
Edit2: TEdit;
Edit3: TEdit;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
procedure Button7Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button7Click(Sender: TObject);
begin
close
end;
procedure TForm1.Button6Click(Sender: TObject);
begin
Edit1.Text := '';
Edit2.Text := '';
Edit3.Text := '';
Edit1.SetFocus;
end;
procedure TForm1.Button1Click(Sender: TObject);
var
a,b,c:real;
begin
a:=StrToFloat(edit1.text);
b:=StrToFloat(edit2.text);
c:=a+b;
edit3.Text:=FloatToStr (c);
end;
procedure TForm1.Button2Click(Sender: TObject);
var
a,b,c:real;
begin
a:=StrToFloat(edit1.text);
b:=StrToFloat(edit2.text);
c:=a-b;
edit3.Text:=FloatToStr (c);
end;
procedure TForm1.Button3Click(Sender: TObject);
var
a,b,c:real;
begin
a:=StrToFloat(edit1.text);
b:=StrToFloat(edit2.text);
c:=a*b;
edit3.Text:=FloatToStr (c);
end;
procedure TForm1.Button4Click(Sender: TObject);
var
a,b,c:real;
begin
a:=StrToFloat(edit1.text);
b:=StrToFloat(edit2.text);
c:=a/b;
edit3.Text:=FloatToStr (c);
end;
procedure TForm1.Button5Click(Sender: TObject);
var
a,b,c:integer;
begin
a:=StrToInt(Edit1.Text);
b:=StrToInt(Edit2.Text);
c:= a mod b;
Edit3.Text := IntToStr(c);
end;
end.
