1、思维导图

 2、

#include <iostream>
using namespace std;

class Person
{
private:
    int age;
    int *p;
public:
    //无参构造
    Person():p(new int(89))
    {
        age = 18;
    }
    //有参构造
    Person(int age,int num)
    {
        this->age = age;
        this->p=new int(num);
    }
    //拷贝构造函数
    Person(Person &other)
    {
        age = other.age;
        p = new int(*(other.p));
    }

    //拷贝赋值函数
    Person &operator=(Person &other)
    {
        if(this != &other)
        {
            age = other.age;
            *p = *(other.p);
            cout << "Person拷贝赋值函数" << endl;
        }
        return *this;
    }

    //析构函数
    ~Person()
    {
        delete p;
        p = NULL;
        cout << "释放那个了point指向的空间" << endl;
        cout << "Person的析构函数" << endl;
    }
};

int main()
{
    Person person1;          // 使用无参构造函数创建对象
    Person person2(person1); // 使用拷贝构造函数创建对象副本

    Person person3;    // 创建另一个对象
    person3 = person2; // 使用拷贝赋值函数赋值给person3

    return 0;
}