C++day3

1> 思维导图

2>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。

#include <iostream>using namespace std;class Per
{
private:string name;int age;double * height;double * weight;
public:Per(string name,int age,double height,double weight):name(name),age(age),height(new double(height)),weight(new double(weight)){cout << "Per::构造函数" << endl;}~Per(){delete height;delete weight;height = nullptr;weight = nullptr;cout << "Per::析构函数" << endl;cout << "height : " << height << endl;cout << "weight : " << weight << endl;}void show(){cout << "name : " << name << endl;cout << "age : " << age << endl;cout << "height : " << *height << endl;cout << "weight : " << *weight << endl;}
};class Stu
{
private:double score;Per p1;
public:Stu(double score,string name,int age,double height,double weight):score(score),p1(name,age,height,weight){cout << "Stu::构造函数" << endl;}~Stu(){cout << "Stu::析构函数" << endl;}void show(){cout << "score : " << score << endl;p1.show();}
};int main()
{Stu s1(99,"mike",18,180,65);s1.show();return 0;
}