QString to base64QString , to unBase64QString

QString qs2B64(QString qs1){//ok

    //////////////////////////////

    QByteArray ba;

    ba=qs1.toUtf8();           //QByteArray

    ba=ba.toBase64();          //Base64

    char * cx=ba.data();       //char *

    QString b64qs1=QString(cx);//QString

    //////////////////////////////

    return b64qs1;

}

QString b64ToQs(QString b64qs1){//ok

    QByteArray ba;

    /////////////////////

    std::string stdStr = b64qs1.toStdString();//std::string

    ba=QByteArray(stdStr.c_str() );           //QByteArray

    ba=ba.fromBase64(ba);                     //unBase64

    /////////////////////

    QString qs1=QString::fromUtf8(ba);        //QString

    return  qs1;

}