C++ day5

思维导图

​
​#include <string>   
  
class Person 
{   
    string name;  
    int *age;  
public:  
    // 构造函数  
    Person():name(),age(new int(20)){}
    Person( string name, int *age) : name(name), age(new int(*age)) {} 
   
    // 析构函数  
    ~Person() 
    {  
        delete age;  
    }  
  
    // 拷贝构造函数  
    Person(const Person &other) : name(other.name), age(new int(*other.age)) {}  
  
    // 拷贝赋值运算符  
    Person &operator=(const Person &other) 
    {  
        if (this != &other)
        {  
            name = other.name;  
            delete age; 
            age = new int(*other.age);
        }  
        return *this;  
    }  
};
class Stu : public Person 
    {   
        const double score;  
    public:  
        // 构造函数  
        Stu( string name, int age, double socre) : Person(name, age), score(score) {} 
        ~Stu(){}
        Stu(const Stu &other):Person(other),score(other.score){}
        Stu &operator=(const Stu &other)
        {
            Person::operator=(other);
            return *this;
        }
   };