qt 得到主机的IP地址

  // 得到主机的IP地址

    QString strIpAddress;

    QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();

    int nListSize = ipAddressesList.size();

    for (int i = 0; i < nListSize; ++i)

    {

        if ( ipAddressesList.at(i).protocol() == QAbstractSocket::IPv4Protocol  )

        {

            if ( ipAddressesList.at(i) != QHostAddress::LocalHost  )

            {

                strIpAddress = ipAddressesList.at(i).toString();

                qDebug(strIpAddress.toLatin1().data());

                ui->combLocalIPAddr->addItem(strIpAddress);

            }

        }

     }