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unit1.pas
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unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls;
type
{ TForm1 }
TForm1 = class(TForm)
Button1: TButton;
Button10: TButton;
Button11: TButton;
Button12: TButton;
Button13: TButton;
Button14: TButton;
Button15: TButton;
Button16: TButton;
Button17: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
Button8: TButton;
Button9: TButton;
Edit1: TEdit;
procedure Button10Click(Sender: TObject);
procedure Button11Click(Sender: TObject);
procedure Button12Click(Sender: TObject);
procedure Button13Click(Sender: TObject);
procedure Button14Click(Sender: TObject);
procedure Button15Click(Sender: TObject);
procedure Button16Click(Sender: TObject);
procedure Button17Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Button7Click(Sender: TObject);
procedure Button8Click(Sender: TObject);
procedure Button9Click(Sender: TObject);
private
public
end;
var
Form1: TForm1;
dec, valor1, valor2: double;
op: integer;
implementation
{$R *.lfm}
{ TForm1 }
procedure TForm1.Button1Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '1';
end;
procedure TForm1.Button11Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '0';
end;
procedure TForm1.Button12Click(Sender: TObject);
begin
if(op = 1) then
begin
valor2 := StrToFloat(Edit1.Text);
valor1 := valor1 + valor2;
edit1.Text := FloatToStr(valor1);
end
else if(op = 2) then
begin
valor2 := StrToFloat(Edit1.Text);
valor1 := valor1 - valor2;
edit1.Text := FloatToStr(valor1);
end
else if(op = 3) then
begin
valor2 := StrToFloat(Edit1.Text);
valor1 := valor1 * valor2;
edit1.Text := FloatToStr(valor1);
end
else if(op = 4) then
begin
valor2 := StrToFloat(Edit1.Text);
valor1 := valor1 / valor2;
edit1.Text := FloatToStr(valor1);
end;
end;
procedure TForm1.Button13Click(Sender: TObject);
begin
valor1 := StrToFloat(Edit1.Text);
Edit1.Text := '';
op := 4;
end;
procedure TForm1.Button14Click(Sender: TObject);
begin
valor1 := StrToFloat(Edit1.Text);
Edit1.Text := '';
op := 3;
end;
procedure TForm1.Button15Click(Sender: TObject);
begin
valor1 := StrToFloat(Edit1.Text);
Edit1.Text := '';
op := 2;
end;
procedure TForm1.Button16Click(Sender: TObject);
begin
valor1 := StrToFloat(Edit1.Text);
Edit1.Text := '';
op := 1;
end;
procedure TForm1.Button17Click(Sender: TObject);
begin
Edit1.Text := '';
valor1 := 0;
valor2 := 0;
dec := 0;
end;
procedure TForm1.Button10Click(Sender: TObject);
begin
if(dec = 0) then
begin
Edit1.Text := Edit1.Text + ',';
dec := 1;
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '2';
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '3';
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '4';
end;
procedure TForm1.Button5Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '5';
end;
procedure TForm1.Button6Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '6';
end;
procedure TForm1.Button7Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '7';
end;
procedure TForm1.Button8Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '8';
end;
procedure TForm1.Button9Click(Sender: TObject);
begin
Edit1.Text := Edit1.Text + '9';
end;
end.