unit5.pas

这是一个学生成绩管理系统

unit Unit5;

interface

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

type
  TForm5 = class(TForm)
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    RadioGroup1: TRadioGroup;
    Edit1: TEdit;
    Button1: TButton;
    DBGrid1: TDBGrid;
    Edit2: TEdit;
    Button2: TButton;
    Edit3: TEdit;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form5: TForm5;

implementation

uses Unit1, Unit2, Unit3, Unit4;

{$R *.dfm}

procedure TForm5.Button1Click(Sender: TObject);
begin
     adoquery1.Close;
     adoquery1.SQL.Clear;
     adoquery1.SQL.Add('select * from 学生成绩单 where 姓名='''+edit1.Text+'''');
     adoquery1.Open;


end;
procedure TForm5.Button2Click(Sender: TObject);
begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from 学生基本表 where 姓名='''+edit2.Text+'''');
adoquery1.Open;
end;

procedure TForm5.Button3Click(Sender: TObject);
begin
 adoquery1.Close;
 adoquery1.SQL.Clear;
 adoquery1.SQL.Add('select * from 课程基本表 where 课程名='''+edit3.Text+'''');
 adoquery1.Open;

end;

end.