QT5.7条件查询数据库

 QString guanlibain;

    QString gname;

    QString bumen;

    QString quan;

    QString bianhao;

    QSqlQuery query;

    query.exec(QString("SELECT * FROM member WHERE (管理员姓名='%1')").arg(Menager::loginname));

    while(query.next())

    {

        guanlibain = query.value(0).toString();

        gname= query.value(1).toString();

        bumen = query.value(2).toString();

        quan = query.value(3).toString();

        bianhao = query.value(4).toString();

        qDebug()<<QString("A:%1 B:%2 C:%3 D:%4 E:%5 ").arg(guanlibain).arg(gname).arg(bumen).arg(quan).arg(bianhao);

    }