qt字符数组转ASCII（十六进制）

接收网络传输数据

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;
}