C++第四天

1. 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)

   //主程序
   #include"stuper.h"
   int main()
   {
       cout<q2)
       {
           cout<<"q1>q2"<>p5;
       cout<<"p5:"<

   //头文件
   #ifndef STUPER_H
   #define STUPER_H
   #include 
   using namespace std;
   class Person;
   const Person operator++(Person &O,int);
   ostream &operator<<(ostream &cout, const Person &p);
   istream &operator>>(istream &cin, Person &p);
   
   class Person
   {
       friend istream &operator>>(istream &cin, Person &p);
       friend const Person operator++(Person &O,int);
       friend ostream &operator<<(ostream &cout, const Person &p);
   private:
       int age;
       int age1;
       string n="df";
       string &name=n;
   public:
       //无参构造
       Person(){cout<<"Person无参构造"<//函数体
   #include "stuper.h"
   
   
       //全局函数实现前置++运算符重载
       const Person operator++(Person &O,int)
       {
           Person temp;
           temp.age=O.age++;
           temp.age1=O.age1++;
           return temp;
       }
   
       //全局函数实现插入<<运算符重载
       ostream &operator<<(ostream &cout, const Person &p)
       {
           cout << "age = " << p.age << " age1 = " << p.age1<<"name = "<>运算符重载
       istream &operator>>(istream &cin, Person &p)
       {
           cin >> p.age >> p.age1>>p.name;
           return cin;
       }