QByteArray array;
array.resize(2);
array[0] = 0x07;
array[1] = 0xE3;
qDebug() << array.toHex().data(); //07e3
bool ok;
qDebug() << array.toHex().toInt(&ok,16); //2019
QByteArray array;
array.resize(2);
array[0] = 0x07;
array[1] = 0xE3;
qDebug() << array.toHex().data(); //07e3
bool ok;
qDebug() << array.toHex().toInt(&ok,16); //2019
Xorg下Qt應用自啓動方法 https://www.eefocus.com/toradex/blog/18-06/429824_18ad3.html