23111 C++ day3

思维导图

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 

using namespace std;

class Per
{
private:
    string name;
    int age;
    double *hight;
    double *weigth;

public:
   Per() { cout << "Per::无参构造函数" << endl; };

    Per(string name, int age, double h, double w):name(name), age(age), hight(new double(h)), weigth(new double(w))
    {
        cout << "Per::有参构造函数" << endl;
    };

    ~Per()
    {
        cout << "Per::析构函数" << endl;
    };

    Per(const Per &other):name(other.name),age(other.age),hight(new double(*(other.hight))),weigth(other.weigth)
    {
        delete hight;
        cout << "Per::拷贝构造函数" << endl;
    };

    void show()
    {
        cout << "姓名=" << name << endl;
        cout << "年龄=" << age << endl;
        cout << "身高=" << *hight << endl;
        cout << "体重=" << *weigth << endl;
    }
};

class Stu
{
private:
    double score;
    Per p1;

public:
    Stu() { cout << "Stu::无参构造函数" << endl; };

    Stu(double score, string name, int age, double hight, double weight):score(score),p1(name, age, hight, weight)
    {
        cout << "Stu::有参构造函数" << endl;
    };

    ~Stu()
    {
        cout << "Stu::析构函数" << endl;
    };

    Stu(const Stu &other):score(other.score),p1(other.p1)
    {
        cout << "Per::拷贝构造函数" << endl;
    };

    void show()
    {
        p1.show();
        cout << "成绩=" << score << endl;
    }

};

int main()
{

    Stu s1;

    Stu s2={ 98,"张三", 19, 1.75, 46 };
    s2.show();

    Stu s3=s2;
    s3.show();

    return 0;
}