Java：装饰设计模式

class Person
{
    public void chifan()
    {
        System.out.println("吃饭");
    }
}
class SuperPerson
{
    private Person p;
    public SuperPerson(Person p)
    {
        this.p = p;
    }
    public void chifan()
    {
        System.out.println("开胃酒");
        p.chifan();
        System.out.println("甜点");
        System.out.println("抽一根");
    }
}
class PersonDemo
{
    public static void main(String[] args)
    {
        Person p = new Person();
        // p.chifan();
        SuperPerson sp = new SuperPerson(p);
        sp.chifan();
    }
}