抽象工厂模式

定义

public abstract class Yabo {
    public abstract void print();
}
public class WuhanYabo : Yabo
{
    public WuhanYabo()
    {
        Console.WriteLine("我是武汉鸭脖");
    }
    public override void print()
    {
        Console.WriteLine("我是武汉鸭脖");
    }
}
public class ShenzhenYabo : Yabo
{
    public ShenzhenYabo()
    {
        Console.WriteLine("我是深圳鸭脖");
    }
    public override void print()
    {
        Console.WriteLine("我是深圳鸭脖");
    }
}

public abstract class Yajia
{
    public abstract void print();
}
public class WuhanYajia : Yajia
{
    public WuhanYajia()
    {
        Console.WriteLine("我是武汉鸭架");
    }
    public override void print()
    {
        Console.WriteLine("我是武汉鸭架");
    }
}
public class ShenzhenYajia : Yajia
{
    public ShenzhenYajia()
    {
        Console.WriteLine("我是深圳鸭架");
    }
    public override void print()
    {
        Console.WriteLine("我是深圳鸭架");
    }
}

public abstract class AbsFactory
{
    public abstract Yabo CreateYabo();
    public abstract Yajia CreateYajia();
}

public class WuhanFactory : AbsFactory
{
    public override Yajia CreateYajia()
    {
       return new WuhanYajia();
    }

    public override Yabo CreateYabo()
    {
        return new WuhanYabo();
    }
}

public class ShenzhenFactory : AbsFactory
{
    public override Yajia CreateYajia()
    {
        return new ShenzhenYajia();
    }

    public override Yabo CreateYabo()
    {
        return new ShenzhenYabo();
    }
}

调用

 AbsFactory wuhanFactory=new WuhanFactory();
 Yajia whyajia= wuhanFactory.CreateYajia();
 Yabo whyabo=wuhanFactory.CreateYabo();
 AbsFactory shenzhenFactory = new ShenzhenFactory();
 Yajia szyajia = shenzhenFactory.CreateYajia();
 Yabo szyabo = shenzhenFactory.CreateYabo();