- #include
- /*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。*/
- using namespace std;
-
- class Per
- {
- private:
- string name; //姓名
- int age; //年龄
- double *height; //身高
- double *weight; //体重
- public:
- Per():height(new double(1)),weight(new double(1))
- {
- cout << "无参构造函数" << endl;
- }
-
- 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;
- }
-
- ~Per() //定义析构函数
- {
- delete height; //释放指针空间
- delete weight;
- height = nullptr;
- weight = nullptr;
- cout << "Per::析构函数:" << this << endl;
- }
-
- //Per(const Per &other):name(other.name),age(other.age),height(other.height),weight(other.weight)//浅拷贝构造函数
- Per(const Per &other):name(other.name),age(other.age),height(new double(*(other.height))),weight(new double(*(other.weight)))//深拷贝构造函数
- {
- cout << "拷贝构造函数" << endl;
- }
-
- void show()
- {
- cout << "姓名:" << name << endl;
- cout << "年龄:" << age << endl;
- cout << "身高:" << *height << endl;
- cout << "体重:" << *weight << endl;
- }
- };
-
- class Stu
- {
- private:
- int score; //成绩
- Per p1;
- public:
- Stu()
- {
- cout << "无参构造函数" << endl;
- }
-
- Stu(int score, Per &p1):score(score),p1(p1)
- {
- cout << "有参构造函数" << endl;
- }
-
- ~Stu()
- {
- cout << "Stu::析构函数:" << this<< endl;
- }
-
- Stu(const Stu &other):score(other.score),p1(other.p1)//拷贝构造函数
- {
- cout << "拷贝构造函数" << endl;
- }
-
- void show()
- {
- p1.show();
- cout << "成绩:" << score << endl;
- }
- };
-
- int main()
- {
- Per p1("张三", 18, 180, 150);
- Per p2 = p1; //调用拷贝构造函数
- //p2.show();
- Stu s1; //无参构造函数
- Stu s2(98, p1); //有参构造函数
- Stu s3(s2); //拷贝构造函数
- cout << endl;
- s3.show();
- cout << endl;
- return 0;
- }

