unit2.pas

delphi学生考试系统及管理系统

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Timer1: TTimer;
    Label1: TLabel;
    DBMemo1: TDBMemo;
    Edit1: TEdit;
    Panel1: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    ADOConnection1: TADOConnection;
    ADOTable1: TADOTable;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;
  mytime:String;
  score:Integer;
implementation

uses Unit1;

{$R *.dfm}

procedure TForm2.FormCreate(Sender: TObject);
begin
  mytime:='';
  mytime :=TimeToStr(Time);
 // score:=0;


end;

procedure TForm2.Timer1Timer(Sender: TObject);
begin
  Label1.Caption:=TimeToStr(Time);
  if TimeToStr(Time)=mytime+ '2:0:0'  then
  begin
  score:=0;
  ADOTable1.First;
  while not ADOTable1.Eof do
  begin
    score:=score + ADOTable1.FieldByName('分数').AsInteger;
    ADOTable1.Next;
  end;
    showmessage('the time is out'+'the score is'+ 'score.Asstring');
    form2.Close;
    form1.close;
  end;
end;

procedure TForm2.Button2Click(Sender: TObject);
begin
 // While not ADOTable1.EOF do
 // begin
  ADOTable1.Edit;
  if Edit1.Text<>'' then
  begin
  ADOTable1.FieldByName('考生答案').AsString:=  Edit1.Text;
  if ADOTable1.FieldByName('考生答案').AsString
      = ADOTable1.FieldByName('正确答案').AsString  then
      ADOTable1.FieldByName('分数').AsInteger:=10
      else ADOTable1.FieldByName('分数').AsInteger :=0;
  end
  else
  ADOTable1.FieldByName('分数').AsInteger :=0;

  ADOTable1.next;
  Edit1.Text:='';
  //end;

end;

procedure TForm2.Button1Click(Sender: TObject);
begin
  ADOTable1.Edit;
  if Edit1.Text<>'' then
  begin
  ADOTable1.FieldByName('考生答案').AsString:=  Edit1.Text;
  ADOTable1.Prior;
  Edit1.Text:=ADOTable1.FieldByName('考生答案').AsString ;
  //ADOTable1.FieldByName('考生答案').AsString:=  Edit1.Text;
  end
  else
  begin
  ADOTable1.Prior;
  Edit1.Text:=ADOTable1.FieldByName('考生答案').AsString ;
  end;
end;

procedure TForm2.Button3Click(Sender: TObject);
begin
  ADOTable1.Edit;
  ADOTable1.FieldByName('考生答案').AsString:='';
  //ADOTable1.clear;
  Edit1.Text:='';
end;

procedure TForm2.Button4Click(Sender: TObject);
begin
ADOTable1.Edit;
  if Edit1.Text<>'' then
  begin
  ADOTable1.FieldByName('考生答案').AsString:=  Edit1.Text;
  if ADOTable1.FieldByName('考生答案').AsString
      = ADOTable1.FieldByName('正确答案').AsString  then
      ADOTable1.FieldByName('分数').AsInteger:=10
      else ADOTable1.FieldByName('分数').AsInteger :=0;
  end
  else
  ADOTable1.FieldByName('分数').AsInteger :=0;
  showmessage('give the score');
  form2.close;
  form1.close;
end;

end.