【1】什么是装饰模式？装饰模式：动态地给一个对象添加一些额外的职责。【2】装饰模式代码示例：代码如下：#include 
     
      #include 
      
       using namespace std;class Person{private:    string m_strName;public:    Person(string strName)    {        m_strName = strName;    }    Person(){}    virtual void show()    {        cout << "装扮的是:" << m_strName << endl;    }};    class Finery : public Person{protected:    Person *m_component;public:    void decorate(Person* component)    {        m_component = component;    }    virtual void show()    {        m_component->show();    }};class TShirts : public Finery{public:    virtual void show()    {        m_component->show();        cout << "T shirts" << endl;    }};class BigTrouser : public Finery{public:    virtual void show()    {        m_component->show();        cout << "Big Trouser" << endl;    }};int main(){    Person *p = new Person("小李");    BigTrouser *bt = new BigTrouser();    TShirts *ts = new TShirts();            bt->decorate(p);    ts->decorate(bt);    ts->show();    return 0;}