unit10.pas

本系统为学生管理系统,可实现选课和退选

unit Unit10;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ImgList, StdCtrls, ExtCtrls, QRCtrls, QuickRpt, DB, DBTables;

type
  TPPrintForm = class(TForm)
    QuickRep1: TQuickRep;
    ColumnHeaderBand1: TQRBand;
    DetailBand1: TQRBand;
    PageFooterBand1: TQRBand;
    PageHeaderBand1: TQRBand;
    SummaryBand1: TQRBand;
    TitleBand1: TQRBand;
    QRLabel4: TQRLabel;
    QRLabel5: TQRLabel;
    Button1: TButton;
    QRSysData1: TQRSysData;
    QRLabel1: TQRLabel;
    QRLabel3: TQRLabel;
    QRLabel2: TQRLabel;
    QRSysData2: TQRSysData;
    QRDBText1: TQRDBText;
    QRDBText2: TQRDBText;
    QRDBText4: TQRDBText;
    QRLabel6: TQRLabel;
    QRDBText3: TQRDBText;
    QRLabel7: TQRLabel;
    QRDBText5: TQRDBText;
    QRDBText6: TQRDBText;
    QRDBText7: TQRDBText;
    QRLabel8: TQRLabel;
    QRDBImage1: TQRDBImage;
    Table1: TTable;
    Table2: TTable;
    DataSource1: TDataSource;
    procedure Button3Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  PPrintForm: TPPrintForm;

implementation

{$R *.dfm}

procedure TPPrintForm.Button3Click(Sender: TObject);
begin
//query1.Close;
//query1.Open;
//qrexpr1.Expression:=query1.Fields[0].AsString;
//quickrep1.Preview;
end;

procedure TPPrintForm.Button1Click(Sender: TObject);
begin
{query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select student.*  from student,dept where student.sdept=dept.deptname  Group by student.sdept');
query1.Open; }

quickrep1.Preview;
end;

end.