unit1.pas

灯泡实验小程序..实现异常.重置.两灯之间的次数比较等功能.

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Panel1: TPanel;
    Panel2: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Button7: TButton;
    Image1: TImage;
    Image2: TImage;
    Label1: TLabel;
    Timer1: TTimer;
    Timer2: TTimer;
    procedure Button6Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Timer2Timer(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  a:string;
  b:string;
  i:integer;
  j:integer;
  k:integer;
  l:integer;
implementation

{$R *.dfm}

procedure TForm1.Button6Click(Sender: TObject);
begin
button1.Enabled:=true;
button2.Enabled:=true;
button3.Enabled:=true;
button4.Enabled:=true;
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
button1.Enabled:=false;
button2.Enabled:=false;
button3.Enabled:=false;
button4.Enabled:=false;
image2.Picture.LoadFromFile(b);
image1.Picture.LoadFromFile(b);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
i:=i+1;
if (i>j) then
begin
image1.Picture.LoadFromFile(a);
image2.Picture.LoadFromFile(b);
end else begin
image1.Picture.LoadFromFile(b);
image2.Picture.LoadFromFile(a);
end;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
j:=j+1;
if (j>i) then
begin
image2.Picture.LoadFromFile(a);
image1.Picture.LoadFromFile(b);
end else begin
image2.Picture.LoadFromFile(b);
image1.Picture.LoadFromFile(a);
end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
a:='D:\作业\light.jpg';
b:='D:\作业\nolight.jpg';
i:=0;
j:=0;
timer1.Interval:=1000;
timer2.Interval:=1000;
k:=0;
l:=0;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
image2.Picture.LoadFromFile(b);
timer2.Enabled:=false;
timer1.Enabled:=not timer1.Enabled;
button3.Enabled:=false;
button4.Enabled:=false;
end ;
procedure TForm1.Timer1Timer(Sender: TObject);
begin
k:=k+1;
if  k mod 2=1 then
image1.Picture.LoadFromFile(a)
else
image1.Picture.LoadFromFile(b);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
image1.Picture.LoadFromFile(b);
timer1.Enabled:=false;
timer2.Enabled:=not timer2.Enabled;
button3.Enabled:=false;
button4.Enabled:=false;
end;
procedure TForm1.Timer2Timer(Sender: TObject);
begin
l:=l+1;
if  l mod 2=1 then
image2.Picture.LoadFromFile(a)
else
image2.Picture.LoadFromFile(b);
end;

procedure TForm1.Button7Click(Sender: TObject);
begin
 timer1.Enabled:=false;
 timer2.Enabled:=false;
 image1.Picture.LoadFromFile(b);
 image2.Picture.LoadFromFile(b);
 l:=0 ;
 k:=0 ;
end;

end.