unit2.pas

来自「银行管理系统上机实验。 具有帐户添加」· PAS 代码 · 共 59 行

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    ADOQuery1: TADOQuery;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;
  var1,var2:STRING;
implementation
    uses unit3;
{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
var1:=Edit1.Text;
var2:=Edit2.Text;
if(var1='')and (var2='')then
ShowMessage('请输入用户名和密码')
else if(var1<>'')and(var2='')then
ShowMessage('请输入密码')
else if(var1='')and(var2='')then
ShowMessage('请输入用户名')
else if(var1='qqq')and(var2='qqq')then
begin
ShowMessage('登陆成功');
form3.Show;
end
else
ShowMessage('对不起，您无权访问');
end;


procedure TForm2.Button2Click(Sender: TObject);
begin
close;
end;

end.