unit1.~pas

这是一个工资管理系统

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    ADOTable1: TADOTable;
    procedure Button2Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation
 uses unit2,unit3;
{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
begin
 if (edit1.Text='') or (edit2.Text='')  then showmessage('用户名或密码不能为空!!!')
 else
  begin
  form1.ADOTable1.Close;
  form1.ADOTable1.Open;
  form1.ADOTable1.Active:=true;
  if form1.ADOTable1.Locate('用户名;密码;权限',VarArrayOf([edit1.Text,edit2.Text,'管理员']),[]) then begin
   form2.Show;form1.Visible:=false; end
   else showmessage('密码错误!!!');
   edit2.Text:='';
  end;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  form1.Close;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  form3.Show;
  form1.Visible:=false;
end;

end.