C++&QT-day3

#include <iostream>
/*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。*/
using namespace std;

class Per
{
private:
    string name; //姓名
    int age; //年龄
    double *height; //身高
    double *weight; //体重
public:
    Per():height(new double(1)),weight(new double(1))
    {
        cout << "无参构造函数" << endl;
    }

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

    ~Per() //定义析构函数
    {
        delete height; //释放指针空间
        delete weight;
        height = nullptr;
        weight = nullptr;
        cout << "Per::析构函数：" << this << endl;
    }

    //Per(const Per &other):name(other.name),age(other.age),height(other.height),weight(other.weight)//浅拷贝构造函数
    Per(const Per &other):name(other.name),age(other.age),height(new double(*(other.height))),weight(new double(*(other.weight)))//深拷贝构造函数
    {
        cout << "拷贝构造函数" << endl;
    }

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

class Stu
{
private:
    int score; //成绩
    Per p1;
public:
    Stu()
    {
        cout << "无参构造函数" << endl;
    }

    Stu(int score, Per &p1):score(score),p1(p1)
    {
        cout << "有参构造函数" << endl;
    }

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

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

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

int main()
{
    Per p1("张三", 18, 180, 150);
    Per p2 = p1; //调用拷贝构造函数
    //p2.show();
    Stu s1; //无参构造函数
    Stu s2(98, p1); //有参构造函数
    Stu s3(s2); //拷贝构造函数
    cout << endl;
    s3.show();
    cout << endl;
    return 0;
}