设计模式之笔记--装饰模式（Decorator）

    /// <summary>
    /// 食物
    /// </summary>
    public abstract class Food
    {
        private string name;
        /// <summary>
        /// 食物的名称
        /// </summary>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        public abstract void Cook();
    }

    /// <summary>
    /// 面条
    /// </summary>
    public class Noodles : Food
    {
        public Noodles()
        {
            this.Name = "面条";
        }

        public override void Cook()
        {
            Console.WriteLine(this.Name);
        }
    }

    /// <summary>
    /// 食材
    /// </summary>
    public abstract class Ingredients : Food
    {
        protected Food food;

        public Ingredients(Food food)
        {
            this.food = food;
        }
    }

    /// <summary>
    /// 西红柿
    /// </summary>
    public class Tomato : Ingredients
    {
        public Tomato(Food food)
            : base(food)
        {
            this.Name = "西红柿" + this.food.Name;
        }

        public override void Cook()
        {
            Console.WriteLine(this.Name);
        }
    }

    /// <summary>
    /// 鸡蛋
    /// </summary>
    public class Egg : Ingredients
    {
        public Egg(Food food)
            : base(food)
        {
            this.Name = "鸡蛋" + this.food.Name;
        }

        public override void Cook()
        {
            Console.WriteLine(this.Name);
        }
    }