8.3指向学生类的指针

#include "iostream"using namespace std;class Student{public:Student(int n,double s):num(n),score(s) {}int getnum(){return num;}double getscore(){return score;}void show(){cout<<num<<" "<<score<<endl;}private:int num;double score;};int max(Student *arr);int main(){Student stud[5]={Student(101,78.5),Student(102,85.5),Student(103,100),Student(104,98.5),Student(105,95.5)};for(int i=0;i<5;i=i+2)stud[i].show();cout<<"5个学生中成绩最高者的学号为："<<max(stud);return 0;}int max(Student *arr){double max_score=arr[0].getscore();    int k=0;    for(int i=1; i<5; i++)        if(arr[i].getscore()>max_score)        {            max_score=arr[i].getscore();            k=i;        }    return arr[k].getnum();}