设计模式学习笔记——工厂方法模式

/// <summary>
    /// 抽象工厂，声明了一个创建Product的方法
    /// </summary>
    public abstract class Creator
    {
        /// <summary>
        /// 该方法用来返回Product产品
        /// </summary>
        /// <returns></returns>
        public abstract Product CreateProduct();
    }

    /// <summary>
    /// 具体产工厂，产品类 A 的创建者，继承自抽象工厂Creator
    /// </summary>
    public class ProductACreator : Creator
    {
        public override Product CreateProduct()
        {
            return new ConcreteProductA();
        }
    }

    /// <summary>
    /// 具体产工厂，产品类 B 的创建者，继承自抽象工厂Creator
    /// </summary>
    public class ProductBCreator : Creator
    {
        public ProductBCreator() { }

        public override Product CreateProduct()
        {
            return new ConcreteProductB();
        }
    }

    /// <summary>
    /// 抽象产品，定义工厂方法中所创建的对象
    /// </summary>
    public abstract class Product
    {
        public Product()
        { }

        public abstract void Opration();
    }

    /// <summary>
    /// 具体产品A，继承自Product
    /// </summary>
    public class ConcreteProductA : Product
    {
        public ConcreteProductA() { }

        public override void Opration()
        {
            // This is product A
        }
    }

    /// <summary>
    /// 具体产品B，继承自Product
    /// </summary>
    public class ConcreteProductB : Product
    {
        public ConcreteProductB() { }

        public override void Opration()
        {
            // This is product B
        }
    }