工厂方法设计模式

namespace 工厂方法
{
class Program
{
static void Main(string[] args)
{
Creator[] creators = new Creator[2];
creators[0] = new ConcreteCreatorA();
creators[1] = new ConcreteCreatorB();

foreach (Creator creator in creators)
{
Product product = creator.FactoryMethod();
Console.WriteLine("Created {0}", product.GetType().Name);
}
Console.Read();
}

abstract class Product { }
class ConcreteProductA : Product { }
class ConcreteProductB : Product { }
abstract class Creator
{
public abstract Product FactoryMethod();
}

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

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