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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;
-
- //定义一个 人 类
- class Per
- {
- private:
- string name; //姓名
- int age; //年龄
- float *height; //身高
- float *weight; //体重
- public:
- //有参构造函数
- Per(string name,int age,float height,float weight):name(name),age(age),height(new float(height)),weight(new float(weight))
- {
- cout << "Per::有参构造函数" << endl << endl;
- }
- //析构函数
- ~Per()
- {
- cout << "Per::析构函数" << endl << endl;
- delete height;
- delete weight;
- height = nullptr;
- weight = nullptr;
- }
- //拷贝构造函数
- Per(const Per &other):name(other.name),age(other.age),height(new float(*(other.height))),weight(new float(*(other.weight)))
- {
- cout << "Per::拷贝构造函数" << endl << endl;
- }
- };
-
- //定义一个 学生 类
- class Stu
- {
- private:
- float score; //成绩
- Per p1;
- public:
- //有参构造函数
- Stu(float score,string name,int age,float height,float weight):score(score),p1(name,age,height,weight)
- {
- cout << "Stu::有参构造函数" << endl << endl;
- }
- //析构函数
- ~Stu()
- {
- cout << "Stu::析构函数" << endl << endl;;
- }
- //拷贝构造函数
- Stu(const Stu &other):score(other.score),p1(other.p1)
- {
- cout << "Stu::拷贝构造函数" << endl << endl;
- }
-
-
- };
-
- int main()
- {
- Per person1("小明",15,165,100);
- Per person2(person1);
-
- Stu s1(135,"小红",15,168,102);
- Stu s2(s1);
-
- return 0;
- }

思维导图
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