?? unit4.pas
字號(hào):
unit Unit4;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Grids, DBGrids, jpeg, ExtCtrls;
type
TForm4 = class(TForm)
Button1: TButton;
Button2: TButton;
Button3: TButton;
GroupBox1: TGroupBox;
Button4: TButton;
DBGrid1: TDBGrid;
Image1: TImage;
procedure Button4Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form4: TForm4;
implementation
uses dem, Unit6, Unit7;
{$R *.dfm}
procedure TForm4.Button4Click(Sender: TObject);
begin
close;
end;
procedure TForm4.Button2Click(Sender: TObject);
var bno:string;
begin
dm.mpl.Active:=false;
dm.mpl.CommandText:='select * from book ';
dm.mpl.active:=true;
dm.mpl.requery;
end;
procedure TForm4.Button1Click(Sender: TObject);
begin
form6.show;
end;
procedure TForm4.Button3Click(Sender: TObject);
begin
form7.show;
end;
end.
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