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C++拷贝构造函数

article 2024/9/20 7:31:49

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;
    double* tall;
    double* weight;
public:
    Per()
    {
        cout << "Per::无参构造函数"  << endl;
    }
    Per(string name,int age,double tall,double weight):name(name),age(age),tall(new double(tall)),weight(new double(weight))
    {
        cout << "Per::有参构造函数" << endl;
    }
    ~Per()
    {
        cout << "Par::析构函数" << endl;
    }
    Per(const Per &other):name(other.name),age(other.age),tall(new double(*(other.tall))),weight(new double (*(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 score,string name,int age,double tall,double weight):score(score),p1(name,age,tall,weight)
    {
        cout << "Stu::有参构建函数" << endl;
    }
    ~Stu()
    {
        cout << "Stu::析构函数" << endl;
    }
    Stu(const Stu &other):score(other.score),p1(other.p1)
    {
        cout << "Stu::拷贝构建函数" << endl;
    }

};

int main()
{
    Per p1;
    Per p2("张三",20,65,180);
    Per p3(p2);

    Stu s1;
    Stu s2(100,"张三",20,65,180);
    Stu s3(s2);
    return 0;
}