思维导图

C++编程

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。

#include <iostream>

using namespace std;

class Per{
private:
    string name;
    int age;
    double *height;
    double *weight;
public:
    Per(){cout << "Per::无参构造函数" << endl;}
    Per(string name,int age,double height,double weight):\
        name(name),age(age),height(new double(height)),weight(new double(weight))
    {
        cout << "Per::有参构造函数" << endl;
    }
    ~Per()
    {
        cout << "Per::析构函数" << endl;
        delete height;
        delete weight;
    }

    void show()
    {
        cout << "姓名：" << name << "  年龄：" << age << "  身高：" << *height << "  体重：" << *weight << endl;
    }
};

class Stu{
private:
    int score;
    Per p1;
public:
    Stu(){cout << "Stu::无参构造函数" << endl;}
    Stu(int score,string name,int age,double height,double weight):\
        score(score),p1(name,age,height,weight)
    {
        cout << "Stu::有参构造函数" << endl;
    }
    ~Stu()
    {
        cout << "Stu::析构函数" << endl;
    }
    void show()
    {
        p1.show();
        cout << "成绩：" << score << endl;
    }

};

int main()
{
    Per p("李二",33,180,150);
    p.show();
    Stu s1(97,"李二",31,181,154);
    s1.show();

    Stu s2(97,"李二",31,181,154);

    return 0;
}