定义一个person类，包含私有成员，int *age,string &name,一个stu类，包含私有成员double *sore,person p1,写出person类和stu类的特殊成员函数，并写一个stu的函数，显示所有信息。

#include <iostream>using namespace std;
class person
{int *age;string &name;
public:person(string &a):age(new int(18)),name(a){cout<<"调用person一个参数的构造函数"<<endl;}person(int a,string &b):age(new int(a)),name(b){cout<<"调用person两个参数的构造函数"<<endl;}person (const person &other):age(new int(*(other.age))),name(other.name){}~person(){delete age;cout<<"调用person析构函数"<<endl;}person &operator=(const person &other){*(this->age)=*(other.age);this->name=other.name;return *this;}int getage();string getname();
};
int person::getage()
{return *age;
}
string person::getname()
{return name;
}
class stu
{double *score;person p1;
public:stu(string &a):score(new double(99.5)),p1(a){cout<<"调用stu一个参数的构造函数"<<endl;}stu(double a,string &b):score(new double(a)),p1(b){cout<<"调用stu两个参数的构造函数"<<endl;}stu(double a,int b,string &c):score(new double(a)),p1(b,c){cout<<"调用stu三个参数的构造函数"<<endl;}stu(const stu &other):score(new double(*(other.score))),p1(other.p1){cout<<"调用stu拷贝构造函数"<<endl;}~stu(){delete score;cout<<"调用stu析构函数"<<endl;}stu &operator=(const stu &other){*(this->score)=*(other.score);this->p1=other.p1;cout<<"调用stu拷贝赋值函数"<<endl;return *this;}void show();
};
void stu::show()
{cout<<p1.getname()<<"\t"<<p1.getage()<<"\t"<<*score<<endl;}
int main()
{string a="杜甫";string b="李白";stu a1(a);a1.show();stu a2=a1;a2.show();stu a3(a);a3=a2;a3.show();stu *p=new stu(80.5,20,b);p->show();delete p;return 0;
}