text.pas

实现加减乘除的简单计算器,可以将0显示在输入的右面.

unit text;

interface

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

type
  Tnmessage = class(TForm)
    show: TStaticText;
    procedure showClick(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  nmessage: Tnmessage;

implementation

{$R *.dfm}

procedure Tnmessage.showClick(Sender: TObject);
begin
close;
end;

procedure Tnmessage.FormClose(Sender: TObject; var Action: TCloseAction);
begin
Action:=caFree;
end;

end.