2023/12/4周一总结

软件设计                  石家庄铁道大学信息学院

 

实验11：装饰模式

本次实验属于模仿型实验，通过本次实验学生将掌握以下内容： 

1、理解装饰模式的动机，掌握该模式的结构；

2、能够利用装饰模式解决实际问题。

 

[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。

1:类图：

 

2：源代码：#include <iostream>

#include <string>

#include <list>

using namespace std;

class Phone

{

public:

    Phone() {}

    virtual ~Phone() {}

    virtual void call() {}

};

class SimplePhone : public Phone

{

private:

    string name;

public:

    SimplePhone(string name) : name(name) {}

    ~SimplePhone() {}

    void call() {

        cout << "--------------" << name << "------------------" << endl;

        cout << "响铃：主人来电话啦！" << endl;

    }

};

class UpgradePhone : public Phone

{

private:

    Phone* phone;

public:

    UpgradePhone(Phone* phone) : phone(phone) {}

    virtual void call() {

        phone->call();

    }

};

class JarPhone : public UpgradePhone

{

public:

    JarPhone(Phone* phone) : UpgradePhone(phone) {}

    void call() {

        UpgradePhone::call();

        shoke();

    }

private:

    void shoke() {

        cout << "振动：嗡嗡嗡" << endl;

    }

};

class ComplexPhone : public UpgradePhone

{

public:

    ComplexPhone(Phone* phone) : UpgradePhone(phone) {}

    void call() {

        UpgradePhone::call();

        light();

    }

private:

    void light() {

        cout << "闪光：咔嚓" << endl;

    }

};

 

int main()

{

    Phone* phone = new SimplePhone("SimplePhone");

    phone->call();

 

    Phone* jphone = new SimplePhone("JarPhone");

    Phone* ph1 = new JarPhone(jphone);

    ph1->call();

 

    Phone* cphone = new SimplePhone("ComplexPhone");

    Phone* ph2 = new JarPhone(cphone);

    Phone* ph3 = new ComplexPhone(ph2);

    ph3->call();

 

    delete phone;

    delete jphone;

    delete ph1;

    delete ph2;

    delete ph3;

    delete cphone;

 

}