嵌入式学习-C++-Day3

嵌入式学习-C+±Day3

一、思维导图

二、作业

1.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:
    Per() {cout << "Per::无参构造函数" << endl;}
    Per(string n,int a,int h,int w):name(n),age(a),height(new int (h)),weight(new int(w))
    {
        cout << "Per::有参构造函数" << endl;
    }
    void show()
    {
        cout << "name = " << name << endl;
        cout << "age = " << age << endl;
        cout << "height = " << *height << endl;
        cout << "weight = " << *weight << endl;
    }
    ~Per()
    {
        cout << "Per::析构函数" << endl;
        delete height;
        delete weight;
    }
    Per(const Per &other):name(other.name),age(other.age),height(other.height),weight(other.weight)
    {
        cout << "Per::拷贝构造函数" << endl;
    }

};
class Stu
{
private:
    int score;
    Per p1;
public:
    Stu() {cout << "Stu::无参构造函数" << endl;}
    Stu(int s,string name,int age,int height,int weight):score(s),p1(name,age,height,weight)
    {
        cout << "Stu::有参构造函数" << endl;
    }
    void show()
    {
        cout << "score = " << score << endl;
        p1.show();
    }
    ~Stu()
    {
        cout << "Stu::析构函数" << endl;
    }
    Stu(const Stu &other):score(other.score),p1(other.p1)
    {
        cout << "Stu::拷贝构造函数" << endl;
    }

};

int main()
{
    Per p;
    Per p2("zhangsan",18,180,180);
    p2.show();
    cout << "============================" << endl;
    Per p3=p2;
    p3.show();
    cout << "============================" << endl;

    Stu s;
    Stu s2(99,"lisi",18,180,180);
    s2.show();
    Stu s3 = s2;
    cout << "============================" << endl;
    p3.show();
    cout << "============================" << endl;
    return 0;
}

运行结果