unit14.pas

简单的选课系统 采用delphi书写 包含简单的管理功能以及学生 教师 管理员登陆

unit Unit14;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids;

type
  TForm14 = class(TForm)
    GroupBox1: TGroupBox;
    DBGrid1: TDBGrid;
    GroupBox2: TGroupBox;
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form14: TForm14;
  teacher,name,intx:string;
implementation
uses unit6;
{$R *.dfm}

procedure TForm14.Button1Click(Sender: TObject);
begin
    with data.ADOQuery2 do
    begin
      close;
      sql.Clear;
      sql.Add('insert into 课程列表 select * from 申请开课列表 where 课程号='''+Edit1.Text+'''');
      execsql;
      with data.ADOQuery2 do
      begin
      close;
      sql.Clear;
      sql.Add('delete from 申请开课列表');
      sql.Add('where 课程号='''+Edit1.Text+'''');
      execsql;
      end;
      with data.ADOQuery1 do
      begin
        close;
        sql.Clear;
        sql.Add('select * from 申请开课列表');
        open;
      end
    end
end;

procedure TForm14.Button2Click(Sender: TObject);
begin
    with data.ADOQuery2 do
    begin
      close;
      sql.Clear;
      sql.Add('delete from 申请开课列表');
      sql.Add('where 课程号='''+Edit1.Text+'''');
      execsql;
      edit1.Clear;
      with data.ADOQuery1 do
      begin
        close;
        sql.Clear;
        sql.Add('select * from 申请开课列表');
        open;
      end
    end
end;

end.