#ifndef OVERLOADST_H
#define OVERLOADST_H
#include "QDataStream"
#include "student.h"
QDataStream &operator << (QDataStream &out, const Student &st);
QDataStream &operator >> (QDataStream &in,  Student &st);
QDataStream &operator << (QDataStream &out, const Student &st)
{
    out << st.stNo << st.name << st.average;
    return out;
}
////////////////////////
QDataStream &operator >> (QDataStream &in, Student &st)
{
    in >> st.stNo >> st.name >> st.average;
    return in;
}
#endif // OVERLOADST_H