c++day3

1. 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 *score，Person p1，写出Person类和Stu类的特殊成员函数，并写一个Stu的show函数，显示所有信息。

   #include <iostream>
   
   using namespace std;
   class Person
   {
       int *age;
       string &name;
   public:
       int get_age();
       string & get_name();
       Person(int a,string &name):age(new int(a)),name(name) {cout<<"Person的有参构造函数"<<endl;}
       Person(const Person &other):age(new int (*(other.age))),name(other.name)
       {
           cout<<"Person的拷贝构造函数"<<endl;
       }
       Person &operator=(const Person &other)
       {
           *(this->age)=*(other.age);
           this->name=(other.name);
           cout<<"Person的拷贝赋值函数"<<endl;
           return *this;
       }
       ~Person()
       {
           delete age;
           cout<<"Person的析构函数"<<endl;
       }
   
   };
   class Stu
   {
       double *score;
       Person p1;
   public:
       void set(int a,int b);
       void show();
       Stu(double a,Person b):score(new double(a)),p1(b)
       {
           cout<<"Stu的有参构造函数"<<endl;
       }
       Stu(const Stu &other):score(new double (*(other.score))),p1(other.p1)
       {
           cout<<"Stu的拷贝构造函数"<<endl;
       }
       Stu &operator=(const Stu &other)
       {
           *(this->score)=*(other.score);
           this->p1=(other.p1);
           cout<<"Stu的拷贝赋值函数"<<endl;
           return *this;
       }
       ~Stu()
       {
           delete score;
           cout<<"Stu的析构函数"<<endl;
       }
   
   };
   int Person::get_age()
   {
       return *age;
   }
   string & Person::get_name()
   {
       return name;
   }
   void Stu::show()
   {
       cout<<"age="<<p1.get_age()<<endl;
       cout<<"name="<<p1.get_name()<<endl;
       cout<<"score="<<*score<<endl;
   }
   
   int main()
   {
       string n="zhangsan";
       Person a(18,n);
       Stu s(99,a);
       s.show();
       Person b(20,n);
       
   
   
       return 0;
   }
   

   

2. 整理思维导图(从特殊成员函数的角度出发整理)

?c++day3 - 幕布