Qt封装MagicPacket

QByteArray getMagicPacket(QString strMacAdd){    //Magic Packge：6个0xff + 16次重复的Mac地址    char MACAddr[6];    char MagicPacket[102];//实现远程开机的Magic包    QStringList macList = strMacAdd.split(":"); //将MAC地址分离开    for (int i =0 ; i < macList.count();i++)    {        MACAddr[i] = char(macList[i].toInt(nullptr,16) & 0xFF);    }    if (macList.length() != 6)    {        return "" ;    }    //把magicpacket数组前6个字符设置成16进制的ff    memset(MagicPacket, 0xFF, 6);    int packetsize = 6;//初始值是6    //构建MagicPacket    for (int i = 0; i < 16; i++)    {        memcpy(MagicPacket + packetsize, MACAddr, 6);        packetsize += 6;    }    return MagicPacket;}