deng_lu.pas

网吧的基本操作都可以

unit deng_lu;

interface

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

type
  Tdenglu = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Edit2KeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  denglu: Tdenglu;

implementation

uses D_M, main;

{$R *.dfm}

procedure Tdenglu.Button1Click(Sender: TObject);
var
  mimi:string;
begin
 if edit1.Text='' then
   begin
    showmessage('用户名每填');
    edit1.SetFocus;
   end
 else
   if edit2.Text='' then
     begin
      showmessage('密码没填');
      edit2.SetFocus;
     end
      else
 begin
  try
   mimi:=DM.ADOTdl.Lookup('用户名',edit1.Text,'密码');

   if mimi=edit2.Text then
      begin
        DM.ADOTdl.Locate('用户名',edit1.Text,[]);
        form1.Show;
        close;
      end
   else
     showmessage('出错,请重试!');
  except
     showmessage('出错,请重试!');
  end;
 end;

end;

procedure Tdenglu.Button2Click(Sender: TObject);
begin
close;
end;

procedure Tdenglu.Edit2KeyPress(Sender: TObject; var Key: Char);
begin
if key=#13 then
  button1.Click;
end;

end.