public override void Execute(Recerver receiver)
 {
     //使用木板
     receiver.UseBoard();
 }
 public override void Execute(Recerver receiver)
 {
     //使用斧子
     receiver.UseAxe();
 }
 public override void Execute(Recerver receiver)
 {
     //使用锤子
     receiver.UseHammer();
 }
 public override void Execute(Recerver receiver)
 {
     //使用黄钥匙
     receiver.UseYellowKey();
 }
 public virtual void Execute(Recerver receiver)
 {
 }
 public override void Execute(Recerver receiver)
 {
     //使用红钥匙
     receiver.UseRedKey();
 }
 public override void Execute(Recerver receiver)
 {
     //玩家角色向右移动
     receiver.MoveRight();
 }
 public override void Execute(Recerver receiver)
 {
     //玩家角色向左移动
     receiver.MoveLeft();
 }
 public override void Execute(Recerver receiver)
 {
     //玩家角色向下移动
     receiver.MoveDown();
 }
 public override void Execute(Recerver receiver)
 {
     //玩家角色向上移动
     receiver.MoveUp();
 }