qt将16进制数据转换为字符串

inline quint8 Char2Hex(char c)

{

    if ("0"<=c && c<="9") return c-"0";

    if ("a"<=c && c<="f") return c-"a"+10;

    if ("A"<=c && c<="F") return c-"A"+10;

    return -1;

}

bool Hex2Raw(quint8 *pData, const char *szMsg, int nMsgLen)

{

    int hi, lo;

    for (int i=0;i<nMsgLen/2;i++)

    {

        hi=Char2Hex(szMsg[i*2]);

        lo=Char2Hex(szMsg[i*2+1]);

        if (hi<0 || lo<0) return false;

        pData[i]=(hi<<4)+lo;

    }

    return true;

}