摘要： unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, Buttons, DB, DBTables;type TForm1 = class(TForm) BitBtn1: TBitBtn; BitBtn2: TBitBtn; BitBtn3: TBitBtn; Label1: TLabel; Memo1: TMemo; Query1: TQuery; procedure BitBtn1Click(Sender: T 阅读全文