unit3.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 Unit3;

interface

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

type
  TForm3 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form3: TForm3;
  pass:string;

implementation
uses Unit8,Unit9,unit1,unit6;
{$R *.dfm}

procedure TForm3.Button1Click(Sender: TObject);
begin
    Unit8.pass:=Label1.Caption;
    Form8.Edit1.Text:=pass;
    Form8.show;
end;

procedure TForm3.Button2Click(Sender: TObject);
begin
    Unit9.pass:=pass;
    with data.ADOQuery2 do
    begin
      close;
      sql.Clear;
      sql.Add('select * from 申请开课列表');
      sql.Add('where 开课教师='''+pass+'''');
      open;
      Form9.show;
    end
end;

procedure TForm3.Button3Click(Sender: TObject);
begin
    close;
    form1.show;
end;

end.