2024-3-13-C++day3作业

1.思维导图

2.

要求：

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。

源代码：

#include <iostream>
 
using namespace std;
 
class Per//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
private:
    string name;
    int age;
    double *height;
    double *weight;
public:
 
    Per();//Per无参构造函数
    Per(string name, int age, double height, double weight);//Per有参构造函数
    ~Per();//Per析构函数
    Per(const Per &other);//Per拷贝构造函数
};
class Stu//设计一个Stu类
{
//类中包含私有成员:成绩、Per类对象p1
private:
    double score;
    Per p1;
public:
    Stu();//Stu无参构造函数
    Stu(double score, string name,int age, double h,double w);//Stu有参构造函数
    ~Stu();//Stu析构函数
    Stu(const Stu &other);//Stu拷贝构造函数
};
Per::Per()
{
    cout << "无参构造函数" << endl;
    cout << "============" << endl;
}
Per::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;
    cout << "============" << endl;
 
}
Per::~Per()
{
    cout << "析构函数" << endl;
    cout << "============" << endl;
    delete height;
    delete weight;
}
Per::Per(const Per &other):name(other.name),age(other.age),\
    height(new double(*(other.height))),weight(new double (*(other.weight)))
{
    cout << "拷贝构造函数" << endl;
    cout << "============" << endl;
}
 
Stu::Stu()
{
    cout << "无参构造函数" << endl;
    cout << "============" << endl;
}
Stu::Stu(double score, string name,int age, double h,double w):score(score),\
    p1(name,age,h,w)
{
    cout << "有参构造函数" << endl;
    cout << "============" << endl;
 
}
Stu::~Stu()
{
    cout << "析构函数" << endl;
    cout << "============" << endl;
}C++
Stu::Stu(const Stu &other):score(other.score), p1(other.p1)
{
    cout << "拷贝构造函数" << endl;
    cout << "============" << endl;
}
int main()
{
    cout << "Per:" << endl << endl;
    Per p2;
    Per p3("李明",18,175,140);
    Per p4(p3);
 
    cout << "Stu:" << endl << endl;
    Stu s1;
    Stu s2(88,"小红",17,165,120);
    Stu s3(s2);
 
 
    return 0;
}

效果图：