// 指针的引用
// 为指针取个别名，相当于'指针的指针'
#include <iostream>
#include <cstdlib>

using namespace std;

struct STU
{
    int sid;
    float score;
};

// 指针的指针
void set_score(STU **q, int sid, float score)
{
    (*q)->sid = sid;
    (*q)->score = score;
}

int main()
{
    STU *p = (STU *)malloc(sizeof(STU));

    set_score(&p, 2, 98);

    cout << "sid = " << p->sid << ", score = " << p->score << endl;

    return 0;
}