如题， QProcess 通过 调用 windows 系统 arp.exe 并解析其获取的数据，得到其mac地址，关键代码如下(从项目中摘取，放心使用)：
//arp for mac;m_process->start("c:/windows/system32/arp.exe -a "+ipAddress);m_process->waitForStarted();m_process->waitForFinished();strOut = QString::fromLocal8Bit(m_process->readAllStandardOutput());if(!strOut.isEmpty() && strOut.contains(ipAddress)){strList = strOut.split("\r\n");if(strList.count() >= 4 ){strList = strList.at(3).trimmed().split(" ");QStringList results;foreach(QString result,strList){if(!result.isEmpty() && !result.trimmed().isEmpty()){results << result;}}if(results.count() == 3){mac = results.at(1).trimmed();}}}if not success(cannot arp ), method 2 -- may be self pc, use ipconfig -all; //"nbtstat.exe -A ipAddress" no effect!;
// if(mac == UNKOWN){
// m_process->start("c:/windows/system32/nbtstat.exe -A " + ipAddress);
// m_process->waitForStarted();
// m_process->waitForFinished();
// QByteArray array = m_process->readAllStandardOutput();
// strOut = QString::fromLocal8Bit(array);
// if(!strOut.isEmpty() && strOut.contains(ipAddress)){
// strList = strOut.split("\r\n");qDebug() << strList << endl;
// }
// }if(mac == UNKOWN){m_process->start("c:/windows/system32/ipconfig.exe -all");m_process->waitForStarted();m_process->waitForFinished();QByteArray array = m_process->readAllStandardOutput();strOut = QString::fromLocal8Bit(array);if(!strOut.isEmpty() && strOut.contains(ipAddress)){
// strList = strOut.split("\r\n");
// if(strList.count()>0){
// QStringList newStrList;
// foreach(QString str,strList){
// if(!str.trimmed().isEmpty()){
// newStrList.append(str.trimmed());
// }
// }
// if(newStrList.count()>=2){
// hostName = newStrList.at(1).split(':').at(1).trimmed();
// }
// foreach(QString s, newStrList){
// qDebug() << s;
// }
// }hostName = "local host";mac = "ipconfig -all";}}
