2024.08.30

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 <iostream>
using namespace std;
class Per
{
private:
    string name;
    int age;
    int *high;
    int *weight;

public:
    // 构造函数
    Per()
    {
        high = nullptr;
        weight = nullptr;
        cout << "无参构造函数" << endl;
    }
    Per(string n, int a, int h, int w) : name(n), age(a), high(new int(h)), weight(new int(w))
    {
        cout << "有参构造函数" << endl;
    }

    // 深拷贝
    Per(const Per &other) : name(other.name), age(other.age), high(new int(*other.high)), weight(new int(*other.weight))
    {
        cout << "拷贝构造函数执行" << endl;
    }
    // 析构函数
    ~Per()
    {
        
        delete high;
        delete weight;
        high = nullptr;
        weight = nullptr;
        cout << "析构函数执行" << endl;
    }
    void show()
    {
        cout << "name:" << name << endl;
        cout << "age:" << age << endl;
        cout << "high:" << *high << endl;
        cout << "weight:" << *weight << endl;
    }
};
class Stu
{
private:
    float score;
    Per p1;

public:
    // 构造函数
    Stu()
    {
        
        cout << "无参函数执行" << endl;
    }
    Stu(float s , string name , int age , int high , int weigh):score(s),p1(name,age,high,weigh)
    {
        cout << "有参构造函数执行" << endl;
    }
    // 拷贝构造函数
    Stu(const Stu &other):score(other.score),p1(other.p1)
    {
        cout << "拷贝构造函数执行" << endl;
    }
    // 析构函数
    ~Stu()
    {
        
        cout << "析构函数执行" << endl;
    }

    void show()
    {
        cout << "score:" << score << endl;
       
        p1.show();
       
    }
};
int main()
{
    Per p1;                      // 无参构造函数
    Per p2("张三", 18, 170, 70); // 有参构造函数
    Per p3(p2);                  // 拷贝构造函数
    p3.show();

    Per p4 = p3;

    cout << "===================" << endl;

    Stu s1;
    Stu s2(100,"李四",18,170,70);
    Stu s3(s2);
    s3.show();
    return 0;
}