QByteArray  array;
//显示字符串

        QString str = QString::fromLocal8Bit(array);

        m_receiveTxt.append(QString("%1:%2:%3").arg(m_TcpSocket->getIp()).arg(m_TcpSocket->getPort()).arg(str));

//显示十六进制

        QString str = ascTohex(array);

        m_receiveTxt.append(QString("%1:%2:%3").arg(m_TcpSocket->getIp()).arg(m_TcpSocket->getPort()).arg(str));

//字符数组串转十六进制

QString Widget::ascTohex(QByteArray array)

{

    QString str = "";

    QString tem = array.toHex();

    for(int i = 0;i < tem.count();i++)

    {

        str.push_back(tem.at(i));

        if(i % 2 == 1 && i != 0)

        {

            str.push_back(' ');

        }

    }

    return str;

}