/// <summary>
/// 元件类
/// 被装饰的抽象对象
/// </summary>
 public abstract class Component
 {
  /// <summary>
  /// 对象的抽象操作
  /// </summary>
  public abstract void Operation();
 }

 /// <summary>
 /// 具体元件
 /// </summary>
 public class ConcreteComponent : Component
 {
  /// <summary>
  /// 对象的具体操作
  /// </summary>
  public override void Operation()
  {
   Console.WriteLine("元件具体操作！");
 }
}

/// <summary>
/// 装饰类
 /// 装饰操作的抽象类
 /// </summary>
 public abstract class Decorator : Component
 {
  /// <summary>
  /// 被装饰的元件
  /// </summary>
  protected Component component;
  
  /// <summary>
  /// 设置元件
  /// </summary>
  /// <param name="component">被装饰的对象</param>
  public void SetComponent(Component component)
  {
   this.component = component;
  }

  /// <summary>
  /// 装饰操作
  /// 重新Operation(),实际执行的是Component的Operation()
  /// </summary>
  public override void Operation()
  {
   if (component != null)
   {
    component.Operation();
   }
  }
 }

 /// <summary>
 /// 具体装饰类A
 /// </summary>
 public class ConcreteDecoratorA : Decorator
 {
  /// <summary>
  /// 装饰A独有的属性
  /// 区别其他装饰类
  /// </summary>
  private string addedState;
  /// <summary>
  /// 装饰类B的操作
  /// </summary>
  public override void Operation()
  {
   base.Operation();
   addedState = "我是装饰A";
   Console.WriteLine(addedState);
  }
 }

 /// <summary>
 /// 具体装饰类B
 /// </summary>
 public class ConcreteDecoratorB : Decorator
 {
  /// <summary>
  /// 装饰类B的独有操作
  /// 区别其他装饰类
  /// </summary>
  private void AddedBehavior()
  {
   Console.WriteLine("装饰类B的独有操作");
  }
  /// <summary>
  /// 装饰类B的操作
  /// </summary>
  public override void Operation()
  {
   base.Operation();
   AddedBehavior();
   Console.WriteLine("装饰类B的操作");
 }
}

 ConcreteComponent cc = new ConcreteComponent();
 Decorator cda = new ConcreteDecoratorA();
 Decorator cdb = new ConcreteDecoratorB();
 cda.SetComponent(cc);
 cdb.SetComponent(cda);
 cdb.Operation();
   
 Console.WriteLine("*********************************");

 /// <summary>
 /// 英雄抽象类
 /// </summary>

 public abstract class Hero
 {
  public string HeroName;
  public abstract void LearnSkill();
 }
 /// <summary>
 /// 具体英雄
 /// 剑圣
 /// </summary>
 public class JUGG : Hero
 {
  public JUGG(string heroName)
  {
   HeroName = heroName;
  }
  public override void LearnSkill()
  {
   Console.WriteLine(HeroName + "学习了以上技能");
  }
 }

 /// <summary>
 /// 技能栏，继续学技能
 /// </summary>
 public abstract class SkillDecorator : Hero
 {
  private Hero hero;
  public string skillName;
  public SkillDecorator(Hero hero, string skillName)
  {
   this.hero = hero;
   this.skillName = skillName;
  }
  public override void LearnSkill()
  {
   if (hero != null)
   {
    hero.LearnSkill();
   }
  }
 }
 /// <summary>
 /// 具体的技能Q
 /// </summary>
 public class QSkill : SkillDecorator
 {
  public QSkill(Hero hero, string skillName) : base(hero, skillName) { }
  public override void LearnSkill()
  {
   LearnQSkill();
   base.LearnSkill();
  }
  /// <summary>
  /// Q 技能 特性
  /// </summary>
  public void LearnQSkill()
  {
   Console.WriteLine("学习了{0}技能！", skillName);
  }
 }

 /// <summary>
 /// 具体的技能W
 /// </summary>
 public class WSkill : SkillDecorator
 {
  public WSkill(Hero hero, string skillName) : base(hero, skillName) { }
  public override void LearnSkill()
  {
   LearnWSkill();
   base.LearnSkill();
  }
  /// <summary>
  /// W 技能 特性
  /// </summary>
  public void LearnWSkill()
  {
   Console.WriteLine("学习了{0}技能！", skillName);
  }
 }

Hero jugg = new JUGG("剑圣");
SkillDecorator q = new QSkill(jugg, "剑刃风暴");
SkillDecorator w = new WSkill(q, "治疗守卫");
w.LearnSkill();