有大神知道哪里出了问题嘛？非常感谢！

Question

有大神知道哪里出了问题嘛？非常感谢！

Answer 1

供参考：

#include<iostream>

using namespace std;
class Student{
      private:
              int xh;
              int cj;
       public:
              Student(int x,int y)
              {
                 xh = x;cj = y;
              }
              void max(Student *s);
};

void Student::max(Student *s)
{
    int i,a,k=0;
    a=s[0].cj ;
    for(i=0;i<5;i++)
          if(a < s[i].cj)
            {a=s[i].cj;k=i;}
    cout<<s[k].xh<<","<<s[k].cj<<endl;
}

int  main()
{
    Student s[5]={Student(2,90),Student(45,23),Student(7,98),Student(4,87),Student(21,45)};
                //void  max（student*s)
    Student*p;
    p->max(s);
    
    return  0;
}