C++ DAY3

初次见面，接个吻好不好?2023-10-09 22:53
cpp 复制代码
#include <iostream>

using namespace std;
//Per 类
class Per
{
    string name ;
    double *high;
    double *weight;
public:
    //有参构造函数 初始化列表方法
    Per (string name, double h,double w):name(name),high(new double(h)),weight(new double(w))
    {
        cout << "有参构造函数" << endl;
    }
    //析构函数 释放指针
    ~Per()
    {
        delete high;
        delete weight;
        high =nullptr;
        weight =nullptr;
        cout << "析构函数" << endl;
    }
    //由外界调用输出结果
    void show()
    {
        cout << "姓名：" << name << "身高：" << *high << "体重：" << *weight << endl;
    }
};

//Stu 类
class Stu
{
    double score;
    Per p1;
public:
    // 有参构造函数 初始化列表法 并初始化p1
    Stu(string n,double h,double w,double score):p1(n,h,w),score(score)
    {
        cout << "有参构造函数" << endl;
    }
    // 析构函数
    ~Stu()
    {
        cout << "析构函数" << endl;
    }
    //外界调用输出
    void show ()
    {
        p1.show();
        cout << "成绩：" << score << endl;
    }

};
int main()
{
    Stu s1("zhangsan",178,70,89);
    s1.show();
    
    return 0;
}