C++day3

1.思维导图

2.设计一个Per类，类中包含私有成员:姓名、年龄、指针成员身高、体重，再设计一个Stu类，类中包含私有成员:成绩、Per类对象p1，设计这两个类的构造函数、析构函数和拷贝构造函数。

#include //标准输入输出函数头文件

using namespace std;//定义命名空间
class Per//定义Per类
{
private://定义私有访问权限变量
  string name;
  int age;
  int *height;
  int *weight;
public:
  //指针类型变量要使用new申请内存，跟引用一样，要记得手动在析构函数中释放
  Per(string name,int age,int height,int weight):name(name),age(age),height(new int(height)),weight(new int(weight))
  {
      cout << "Per有参构造函数" << endl;
  }
  Per()
  {
      cout << "Per无参构造函数" << endl;
  }
  ~Per()
  {
      delete height;
      delete weight;
      cout << this << endl;
      cout << "Per析构函数" << endl;
  }
  void show()
  {
      cout << "姓名:" << this->name << endl;
      cout << "年龄:" << this->age << endl;
      cout << "身高:" << *this->height << endl;
      cout << "体重:" << *this->weight << endl;
  }
  Per(const Per &other):name(other.name),age(other.age),height(other.height),weight(other.weight)
  {
      cout << this << endl;
      cout << "Per::拷贝构造函数" << endl;
  }
};
class Stu//定义Str类
{
private://定义私有访问权限变量
    int grade;
    Per message;
public:
    Stu(int grade,string name,int age,int height,int weight):grade(grade),message(name,age,height,weight)
    {
        cout << "Stu有参构造函数" << endl;
    }
    Stu()
    {
        cout << "Stu无参构造函数" << endl;
    }
    ~Stu()
    {
        cout << this << endl;
        cout << "Stu析构函数" << endl;
    }
    void show()//输出数据
    {
        cout << "成绩:" << this->grade << endl;
        message.show();
    }
    Stu(const Stu &other):grade(other.grade),message(other.message)
    {
        cout << this << endl;
        cout << "Stu::拷贝构造函数" << endl;
    }
};
/***********主程序**********/
int main()
{
    Stu pa;
    Stu pb(148,"行一",16,178,120);
    pb.show();
    Stu pc=pb;
    pc.show();
    cout << "pa:" << &pa << "  pb:" << &pb << "  pc:" << &pc << endl;
    return 0;
}