Question

建立一个对象数组,内放5个学生的数据,设立一个max函数,用指向对象的指针做函数参数,在max中

找到成绩最好的,输出其学号
我的程序哪有问题,求指教

#include <iostream>
using namespace std;
class Student
{
public:
Student(int, int);
void max(Student* s);
private:
int num;
int scor;
};
Student::Student(int n, int s):num(n),scor(s){}
void Student::max(Student* s)
{
int i, max_num=0, max_scor=0;
for(i=0;i<5;++i)
if((s+i)->scor > max_scor)
{
max_scor=(s+i)->scor;
max_num=(s+i)->num;
}
cout<<""成绩最高者的学号为""<<max_num<< endl;
}
int main()
{
Student s[5]=
{
Student(1, 78),
Student(2, 92),
Student(4, 81),
Student(4, 89),
Student(5, 68)
};
Student *p;
p=&s[0];
max(p);
return 0;
}

Answer 1

#include <iostream>
using namespace std;
class Student
{
public:
Student(int, int);
void max(Student* s);
private:
int num;
int scor;
};
Student::Student(int n, int s):num(n),scor(s){}
void Student::max(Student* s)
{
int i, max_num=0, max_scor=0;
for(i=0;i<5;++i)
if((s+i)->scor > max_scor)
{
max_scor=(s+i)->scor;
max_num=(s+i)->num;
}
cout<<"成绩最高者的学号为"<<max_num<< endl;
}
int main()
{
Student s[5]=
{
Student(1, 78),
Student(2, 92),
Student(4, 81),
Student(4, 89),
Student(5, 68)
};
Student *p;
p=&s[0];
p->max(p); //max是类里的方法
return 0;
}

Answer 2

max是类的方法，不能这么用吧？话说为啥要把他变成成员函数呢？