抽象工程模式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace KFCandM
{
class Program
{
interface IFactory
{
Burger Makeburger();
Drink Makedrink();
Chicken Makechicken();
}

class KFC : IFactory
{
public Burger Makeburger()
{
return new Kburger();
}

public Drink Makedrink()
{
return new Kdrink();
}

public Chicken Makechicken()
{
return new Kchicken();
}
}

class MacDonald : IFactory
{
public Burger Makeburger()
{
return new Mburger();
}

public Drink Makedrink()
{
return new Mdrink();
}

public Chicken Makechicken()
{
return new Mchicken();
}
}

abstract class Burger
{
public abstract void burger();
}

class Kburger : Burger
{
public override void burger()
{
Console.WriteLine("KFC's Hamburger is ready...");
}
}

class Mburger : Burger
{
public override void burger()
{
Console.WriteLine("MacDonald's New Orleans Beef Burger is ready...");
}
}

abstract class Drink
{
public abstract void drink();
}
class Kdrink : Drink
{
public override void drink()
{
Console.WriteLine("KFC's coffee is ready...");
}
}

class Mdrink : Drink
{
public override void drink()
{
Console.WriteLine("MacDonald's orange juice is ready...");
}
}
abstract class Chicken
{
public abstract void chicken();
}

class Kchicken : Chicken
{
public override void chicken()
{
Console.WriteLine("KFC's  New Orleans chicken wings are ready...");
}
}

class Mchicken : Chicken
{
public override void chicken()
{
Console.WriteLine("MacDonald's spicy chicken wings are ready...");
}
}

class Food
{
private Burger _burger;
private Drink _drink;
private Chicken _chicken;

public Burger Burger
{
get { return _burger; }
set { _burger = value; }
}

public Drink Drink
{
get { return _drink; }
set { _drink = value; }
}

public Chicken Chicken
{
get { return _chicken; }
set { _chicken = value; }
}
public void Eatting()
{
_chicken.chicken();
_burger.burger();
_drink.drink();
Console.WriteLine("The lunch is over");
}

private static void Main(string[] args)
{
IFactory factory1 = new KFC();
IFactory factory2 = new MacDonald();

Food f1 = new Food();
f1.Burger = factory1.Makeburger();
f1.Chicken = factory1.Makechicken();
f1.Drink = factory1.Makedrink();
f1.Eatting();

Food f2 = new Food();
f2.Burger = factory2.Makeburger();
f2.Chicken = factory2.Makechicken();
f2.Drink = factory2.Makedrink();
f2.Eatting();

Console.ReadLine();

}

}
}
}

运行的结果