手动分页

分页

//分页计算、更新参数
void updateWidgetData()
{
    totalSize = student_vec.size();
    indexPage = 1;
    qDebug() << "page num:" << pageNum;
    qDebug() << "total size:"<<totalSize;
    pageCount = totalSize / pageNum;
    pageCount = pageCount + 1;
    ui.label_count->setText(QString::number(totalSize));
    
}