interface IFlyBehavior {
  fly(name: string): void;
}

class CanNotFly implements IFlyBehavior {
  public fly(name: string): void {
    console.log(`${name} 不會飛`);
  }
}

class FlyWithHammer implements IFlyBehavior {
  public fly(name: string): void {
    console.log(`${name} 用錘子飛`);
  }
}

class FlyWithArmor implements IFlyBehavior {
  public fly(name: string): void {
    console.log(`${name} 穿著鋼鐵裝飛`);
  }
}