QT Serial port receives hexadecimal data displayed in a text box

Read serial port void myserial::readmycom () {    qbytearray temp;     if (myCom-> Bytesavailable () >= 8)     {        temp = myCom- >readall (); Read serial buffer data        }     qdatastream out (&temp,qiodevice:: ReadWrite)     //reads a byte array into     while (!out.atend ())      {        qint8 outchar = 0;          out>>outChar;  //padding once per byte until end          QString str =  QString ("%1"). Arg (Outchar&0xff,2,16,qlatin1char (' 0 ')); Conversion of         //16 binary          Recbrowser->insertplaintext (str);     }     recbrowser->insertplaintext (tr ("\ n"));

The data I want to receive is very long, "01 03 24 01 19 ... XX D5 F6 "in the middle omit a large section, in order to receive this data into a string, refer to the QT Forum article, summarized as follows:
Qbytearray tmp;       if (highcom->bytesavailable () >=) {tmp = Highcom->readall ();       Qdatastream out (&tmp,qiodevice::readwrite);         while (!out.atend ()) {qint8 Outchar = 0;         out>>outchar;         QString str = QString ("%1"). Arg (Outchar&0xff,2,16,qlatin1char (' 0 '));        Strhex + = str;   } qdebug () <<strHex; }
The Strhex is the stored receive hexadecimal data.