denglu.txt

这是一个简单的登陆程序

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Label1: TLabel;
    Label2: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
const
name = 'delphi';
pwd = 'delphi';
begin
 if not (edit1.Text=name) then
begin
showmessage('用户名错误');
edit1.Text:='';
edit1.SetFocus;
end
else if not(edit2.Text=pwd) then
begin
showmessage('密码错误');
edit2.Text:='';
edit2.SetFocus;
end
else
begin
form2.show;
//form1.Hide;
end;

end;

end.