C++day3

1> 思维导图

2>

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;
    int *height;
    int *weight;

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

    //析构函数
    ~Per()
    {
        cout << "Per::析构函数" << endl;
        delete height;
        delete weight;
    }

    //拷贝构建函数   深拷贝
    Per(const Per &s2):name(s2.name),age(s2.age),height(new int(*(s2.height))),weight(new int (*(s2.weight)))
    {
        cout << "Per::拷贝构建函数" << 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:
    double score;
    Per p1;

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

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

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

    //拷贝构造函数
    Stu(const Stu &s2):score(s2.score),p1(s2.p1)
    {
        cout << "Stu::拷贝构建函数" << endl;
    }

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

int main()
{
    Stu s1(99, "李白", 22, 180, 70);
    s1.show();
    Stu s2 = s1;
    s2.show();
    return 0;
}