text: #ifndef ADDINFO_STUDENT_H
  #define ADDINFO_STUDENT_H
  
  #include <QMainWindow>
  #include <QFile>
  #include <QSqlQuery>
  #include <QSqlTableModel>
  #include <QMessageBox>
  #include <QVector>
  #include <QSqlError>
  #include <QSqlRecord>
  #include <QTableView>
  #include <QDebug>
  
  namespace Ui {
  class addinfo_student;
  }
  
  class addinfo_student : public QMainWindow
  {
      Q_OBJECT
  
  public:
      explicit addinfo_student(QWidget *parent = nullptr);
      ~addinfo_student();
  
  private:
      Ui::addinfo_student *ui;
  };
  
  #endif // ADDINFO_STUDENT_H
  