unit3.pas

基于ORACLE的数据库操作系统！！能实现对数据的查询

unit Unit3;

interface

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

type
  TForm3 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    nameedit: TEdit;
    mimaedit: TEdit;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
   

  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form3: TForm3;

implementation

uses Unit4;

{$R *.dfm}

procedure TForm3.Button1Click(Sender: TObject);
var
i:integer;
begin
if((nameedit.Text='m03001218')and
(mimaedit.Text='zl'))  then
begin

form4.show;
nameedit.Text:='';
mimaedit.Text:='';
close;
end

else
begin
showmessage('非法用户，您不可以使用该功能！');



end ;

end;



procedure TForm3.Button2Click(Sender: TObject);
begin
if messagedlg('洪福鑫提醒您：确认退出？',mtconfirmation,[mbYes,mbNo],0)=mryes
then close;
end;

end.