class1.cs

来自DoFactory的设计模式, 由于是本人根据已有代码创建,没有NETOptimized项

// Factory Method pattern -- Structural example  

using System;
using System.Collections;

namespace DoFactory.GangOfFour.Factory.Structural
{

    // MainApp test application 

    class MainApp
    {
        static void Main()
        {
            // An array of creators 
            Creator[] creators = new Creator[2];
            creators[0] = new ConcreteCreatorA();
            creators[1] = new ConcreteCreatorB();

            // Iterate over creators and create products 
            foreach (Creator creator in creators)
            {
                Product product = creator.FactoryMethod();
                Console.WriteLine("Created {0}",
                  product.GetType().Name);
            }

            // Wait for user 
            Console.Read();
        }
    }

    // "Product" 

    abstract class Product
    {
    }

    // "ConcreteProductA" 

    class ConcreteProductA : Product
    {
    }

    // "ConcreteProductB" 

    class ConcreteProductB : Product
    {
    }

    // "Creator" 

    abstract class Creator
    {
        public abstract Product FactoryMethod();
    }

    // "ConcreteCreator" 

    class ConcreteCreatorA : Creator
    {
        public override Product FactoryMethod()
        {
            return new ConcreteProductA();
        }
    }

    // "ConcreteCreator" 

    class ConcreteCreatorB : Creator
    {
        public override Product FactoryMethod()
        {
            return new ConcreteProductB();
        }
    }
}