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定义一个Person类，私有成员int age，string &name，定义一个Stu类，包含私有成员double *score，写出两个类的构造函数、析构函数、拷贝构造和拷贝赋值函数，完成对Person的运算符重载(算术运算符、条件运算符、逻辑运算符、自增自减运算符、插入/提取运算符)

#include <iostream>using namespace std;class person
{int age;string &name;
public:person(string &a):age(18),name(a){}person(int a,string &b):age(a),name(b){}~person(){}person(const person &other):age(other.age),name(other.name){}person &operator=(const person&other){this->age=other.age;this->name=other.name;return *this;}void show(){cout<<"age:"<<age<<endl<<"name:"<<name<<endl;}person operator+(const person&other){int age=this->age+other.age;static string name;name = this->name+other.name;return person(age,name);}bool operator==(person &other){if((this->age==other.age)&&(this->name==other.name))return true;elsereturn false;}bool operator>(person &other){if(this->age>other.age)return true;elsereturn false;}bool operator&&(person &other){return (this->age&&other.age)||(this->name==other.name);}int getage(){return age;}friend ostream &operator<<(ostream &out,person&c1);friend istream &operator>>(istream &in,person &c1);
};
ostream &operator<<(ostream &out,person&c1)
{out<<"age:"<<c1.age<<endl<<"name:"<<c1.name<<endl;return out;
}
istream &operator>>(istream &in,person &c1)
{in>>c1.age>>c1.name;return in;
}
class stu
{double *score;person p1;
public:stu(string &a):score(new double(12.5)),p1(a){}stu(double a,string &b):score(new double(a)),p1(b){}~stu(){delete score;}stu(const stu&other):score(new double(*(other.score))),p1(other.p1){}stu &operator=(const stu&other){*(this->score)=*(other.score);this->p1=other.p1;return *this;}void show(){cout<<"score:"<<*score<<endl;p1.show();}
};
int main()
{string a="zhangsan";string b="lisi";string c="wangwu";stu a1(a);a1.show();cout<<endl;person p1(a);cout<<p1<<endl;person p2(b);cout<<p2<<endl;person p3(c);cout<<p3<<endl;person p4=(p1+p2);p4.show();cout<<endl;cout<<(p1==p2)<<endl;cout<<(p1>p2)<<endl;cout<<(p1&&p2)<<endl;return 0;
}