урок на делфи 37 - Калькулятор
unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
type
TForm1 = class(TForm)
Edit1: TEdit;
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
Button8: TButton;
Button9: TButton;
Button10: TButton;
Button11: TButton;
Button12: TButton;
Button13: TButton;
Button14: TButton;
Button15: TButton;
Button16: TButton;
Button17: TButton;
procedure Button11Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button14Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Button13Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button7Click(Sender: TObject);
procedure Button8Click(Sender: TObject);
procedure Button9Click(Sender: TObject);
procedure Button12Click(Sender: TObject);
procedure Button15Click(Sender: TObject);
procedure Button16Click(Sender: TObject);
procedure Button17Click(Sender: TObject);
procedure Button10Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
ram1,ram2,ravno:Float32;
funk:string;
{Программа подготовлена для ролика на ютубе https://youtu.be/TRDNS81GHFg
И скачена с сайте http://dear-ruslan.ru
Автор Салихьянов Руслан. }
implementation
{$R *.dfm}
procedure TForm1.Button10Click(Sender: TObject);
begin
if Length(Edit1.Text)=0 then
Edit1.Text:='0';
Edit1.Text:=Edit1.Text+Button10.Caption;
end;
procedure TForm1.Button11Click(Sender: TObject);
begin
Edit1.Text:='';
ram1:=0;
ram2:=0;
end;
procedure TForm1.Button12Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button12.Caption;
end;
procedure TForm1.Button13Click(Sender: TObject);
begin
ram2:=StrToFloat(Edit1.Text);
if funk='+' then
ravno:=ram1+ram2;
if funk='-' then
ravno:=ram1-ram2;
if funk='*' then
ravno:=ram1*ram2;
if funk='/' then
ravno:=ram1/ram2;
Edit1.Text:=FloatToStr(ravno) ;
ram1:=0;
ram2:=0;
end;
procedure TForm1.Button14Click(Sender: TObject);
begin
ram1:=StrToFloat(Edit1.Text);
Edit1.Text:='';
funk:='+';
end;
procedure TForm1.Button15Click(Sender: TObject);
begin
ram1:=StrToFloat(Edit1.Text);
Edit1.Text:='';
funk:='-';
end;
procedure TForm1.Button16Click(Sender: TObject);
begin
ram1:=StrToFloat(Edit1.Text);
Edit1.Text:='';
funk:='*';
end;
procedure TForm1.Button17Click(Sender: TObject);
begin
if (Length(Edit1.Text)>0) AND (Edit1.Text<>'0') then
begin
ram1:=StrToFloat(Edit1.Text);
Edit1.Text:='';
funk:='/';
end
else
ShowMessage('на ноль делить нельзя');
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button1.Caption;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button2.Caption;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button3.Caption;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button4.Caption;
end;
procedure TForm1.Button5Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button5.Caption;
end;
procedure TForm1.Button6Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button6.Caption;
end;
procedure TForm1.Button7Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button7.Caption;
end;
procedure TForm1.Button8Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button8.Caption;
end;
procedure TForm1.Button9Click(Sender: TObject);
begin
Edit1.Text:=Edit1.Text+Button9.Caption;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
ram1:=0;
ram2:=0;
ravno:=0;
end;
end.