float 转 16
QString str = "ABCDE"; float f = str .toFloat(); int i = *((int *)&f); QString str_float = QString("%1").arg(i, 4, 16, QLatin1Char('0')); qDebug() << "str_float: " << str_float ;
16 转 float
QString strHex = "0x2222"; int c = strHex.toInt(nullptr, 16); float d = *(float*)&c; QString str= QString("%1").arg(d); qDebug() << "str: " << str;
