QByteArray => QString

void BarEngine::ByteArrayToString(QByteArray &ba, QString &str)

{

    int i = 0;

    int nCount = ba.count();

    QByteArray bb;

    for(i=0; i < nCount; i++) {

        bb.append( ba.at(i) | 0x0000 );

    }

    str.clear();

    nCount = bb.count();

    for(i=0; i < nCount;) {

        if( bb.at(i) < 0x00a1 ) {

            str += QChar(bb.at(i)); i++; continue;

        } else {

            if( i+1 >= nCount ) {

                //最后一个字节没有配对儿的

                Q_ASSERT(1 == 2);

            } else {

                if( bb.at(i+1) > 0x00a0 ) {

                    str += QChar( ( bb.at(i) << 8 | bb.at(i+1) ) );

                    i = i+2;

                } else {

                    //缺少一个字节进行配对儿

                    Q_ASSERT( 1==2 );

                }

            }

        }

    }

}