public interface IControl
{
    void Execute();
}

public class Tv
{
    public void TurnOn()
    {
      Console.WriteLine("电视机打开了");
    }
    public void TurnOff()
    {
      Console.WriteLine("电视机关闭了");
    }
    public void SwitchChannel()
    {
      Console.WriteLine("电视机切换频道");
    }
}
public class Light
{
    public void TunrOn()
    {
      Console.WriteLine("电灯打开了");
    }
    public void TurnOff()
    {
      Console.WriteLine("电灯关闭了");
    }
}

public class LighOn : IControl
{
    private Light _light;
    public LighOn(Light light)
    {
      _light = light;
    }
    public void Execute()
    {
      _light.TunrOn();
    }
}
public class LightOff : IControl
{
    private Light _light;
    public LightOff(Light light)
    {
      _light = light;
    }
    public void Execute()
    {
      _light.TurnOff();
    }
}
public class TvOn : IControl
{
    private Tv _tv;
    public TvOn(Tv tv)
    {
      _tv = tv;
    }
    public void Execute()
    {
      _tv.TurnOn();
    }
}
public class TvOff : IControl
{
    private Tv _tv;
    public TvOff(Tv tv)
    {
      _tv = tv;
    }
    public void Execute()
    {
      _tv.TurnOff();
    }
}
public class TvSwitch : IControl
{
    private Tv _tv;
    public TvSwitch(Tv tv)
    {
      _tv = tv;
    }
    public void Execute()
    {
      _tv.SwitchChannel();
    }
}

public class RemoteControl
{
    private IList<IControl> onCommands = new List<IControl>();
    private IList<IControl> offCommands = new List<IControl>();
    private IList<IControl> switchCommands = new List<IControl>();
    public void AddOnCommand(IControl control)
    {
      onCommands.Add(control);
    }
    public void AddOffCommand(IControl control)
    {
      offCommands.Add(control);
    }
    public void AddSwitchCommand(IControl control)
    {
      switchCommands.Add(control);
    }
    public void PressOnButton(int number)
    {
      onCommands[number].Execute();
    }
    public void PressOffButton(int number)
    {
      offCommands[number].Execute();
    }
    public void PressSwitchButton(int number)
    {
      switchCommands[number].Execute();
    }
}

class Program
{
    static void Main(string[] args)
    {
      //命令的接收方
      Light light = new Light();
      Tv tv = new Tv();
      //各种命令
      LighOn turnLightOn = new LighOn(light);
      LightOff turnLightOff = new LightOff(light);
      TvOn turnTvOn = new TvOn(tv);
      TvOff turnTvOff = new TvOff(tv);
      TvSwitch switchTv = new TvSwitch(tv);
      //RemoteConroller组装命令
      RemoteControl control = new RemoteControl();
      control.AddOnCommand(turnLightOn);
      control.AddOnCommand(turnTvOn);
      control.AddOffCommand(turnLightOff);
      control.AddOffCommand(turnTvOff);
      control.AddSwitchCommand(switchTv);
      control.PressOnButton(0);
      Console.ReadKey();
    }
}