public DvdFacade(Dvd _dvd, Light _light, Popper _popper, Screen _screen)
{
dvd = _dvd;
light = _light;
popper = _popper;
screen = _screen;
}
protected void btn_Close_Click(object sender, EventArgs e)
{
Dvd dvd = new Dvd();
Light light = new Light();
Popper popper = new Popper();
Screen screen = new Screen();
//不好的方法
//ShowMsg(dvd.Off());
//ShowMsg(screen.Up());
//ShowMsg(screen.Off());
//ShowMsg(popper.Off());
//ShowMsg(light.Off());
//運用表象模式
DvdFacade dvdFacade = new DvdFacade(dvd, light, popper, screen);
ShowMsg(dvdFacade.Close ());
}