[实验任务一]：手机功能的升级

用装饰模式模拟手机功能的升级过程：简单的手机(SimplePhone)在接收来电时，会发出声音提醒主人；而JarPhone除了声音还能振动；更高级的手机(ComplexPhone)除了声音、振动外，还有灯光闪烁提示。

实验要求：

1.提交类图；

2.提交源代码；

3.注意编程规范。

public class Changer implements Phone{

    private Phone phone;
    public Changer(Phone p) {
        this.phone=p;
    }
    public void voice() {
        phone.voice();
    }
}

public class Client {
    public static void main(String[] args) {
        Phone phone;
        phone=new SimplePhone();
        phone.voice();
        JarPhone jarphone=new JarPhone(phone);
        jarphone.voice();
        jarphone.zhendong();
        ComplexPhone complexphone = new ComplexPhone(phone);
        complexphone.zhendong();
        complexphone.dengguang();
    }
}

public class ComplexPhone extends Changer{

    public ComplexPhone(Phone p) {
        super(p);
        System.out.println("ComplexPhone");
    }

    public void zhendong() {
        System.out.println("会震动！");
    }
    public void dengguang() {
        System.out.println("会发光！");
    }

}

public class JarPhone extends Changer{

    public JarPhone(Phone p) {
        super(p);
        System.out.println("Jarphone");
    }

    public void zhendong() {
        System.out.println("会震动！");
    }
}

public interface Phone {
    public void voice();
}

public class SimplePhone implements Phone{

    public void voice() {
           System.out.println("发出声音！");
       }

}