u8989332

public abstract class AbstractWeapon
{
    public abstract void shoot();
}

u8989332

public class Ice : AbstractWeapon
{
    public override void shoot()
    {
        Console.WriteLine("冰天箭！");
    }
}

u8989332

public class Cut : AbstractWeapon
{
    public override void shoot()
    {
        Console.WriteLine("削切剪刀！");
    }
}

u8989332

public class Guts : AbstractWeapon
{
    public override void shoot()
    {
        Console.WriteLine("超級手臂！");
    }
}

u8989332

public class Rockman
{
    private AbstractWeapon weapon;
    public void setWeapon(AbstractWeapon weapon)
    {
        this.weapon = weapon;
    }

    public void killEnemy()
    {

u8989332

public class Program
{
    static void Main(string[] args)
    {
        Rockman rockman = new Rockman();
        rockman.setWeapon(new Cut());
        rockman.killEnemy();

        Console.ReadKey();
    }

u8989332

public class BreakfastShop
{
    public void cook(Hamburger hamburger)
    {
        hamburger.recipe();
    }
}

u8989332

public class Hamburger
{
    public void recipe()
    {
        Console.WriteLine("漢堡需要麵包皮、生菜、豬肉片、番茄片、起士");
    }
}

u8989332

public class Program
{
    static void Main(string[] args)
    {
        BreakfastShop shop = new BreakfastShop();
        Hamburger hamburger = new Hamburger();
        shop.cook(hamburger);

        Console.Read();

u8989332

public class MilkTea
{
    public void recipe()
    {
        Console.WriteLine("奶茶需要紅茶、牛奶、水");
    }
}