passunit.pas

基于DELPHI+SQL的校园自助银行系统

unit PASSUnit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, DB, DBTables, Mask, DBCtrls;

type
  TForm2 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    SpeedButton1: TSpeedButton;
    DBEdit1: TDBEdit;
    DataSource1: TDataSource;
    Table1: TTable;
    Table1BDEDesigner: TStringField;
    Table1BDEDesigner2: TStringField;
    Table1BDEDesigner3: TStringField;
    Table1BDEDesigner4: TFloatField;
    Table1BDEDesigner5: TStringField;
    Table1BDEDesigner6: TStringField;
    Table1BDEDesigner7: TStringField;
    DBEdit2: TDBEdit;
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses YWUnit;

{$R *.dfm}

procedure TForm2.SpeedButton1Click(Sender: TObject);
begin
 With Table1 do
 begin
   Indexname:='KH';
   Open;
   SetKey;
   FieldByname('卡号').Asstring:=Edit1.text;
   GotoNearest;
    Indexname:='PASS';
   Open;
   SetKey;
   FieldByname('密码').Asstring:=Edit1.text;
   GotoNearest;
   if ((DBEdit1.Text<>Edit1.text)or(DBEdit2.Text<>Edit2.text)) then
   Showmessage('对不起，没有该用户！')
   else
   If form3.DBEdit6.Text='' then
   Form3.show
   else
   Showmessage('对不起，该用户已经挂失，不能进行业务交易！');
   End;
end;

end.