windows下执行命令除了用cmd之外，还有个东西叫WMIC，非常强大，可以通过他获取很多信息，包括硬件信息。

#include <QProcess>QString frmMain::getWMIC(const QString &cmd)
{//获取cpu名称：wmic cpu get Name//获取cpu核心数：wmic cpu get NumberOfCores//获取cpu线程数：wmic cpu get NumberOfLogicalProcessors//查询cpu序列号：wmic cpu get processorid//查询主板序列号：wmic baseboard get serialnumber//查询BIOS序列号：wmic bios get serialnumber//查看硬盘：wmic diskdrive get serialnumberQProcess p;p.start(cmd);p.waitForFinished();QString result = QString::fromLocal8Bit(p.readAllStandardOutput());QStringList list = cmd.split(" ");result = result.remove(list.last(), Qt::CaseInsensitive);result = result.replace("\r", "");result = result.replace("\n", "");result = result.simplified();return result;
}QString frmMain::getCpuName()
{return getWMIC("wmic cpu get name");
}QString frmMain::getCpuId()
{return getWMIC("wmic cpu get processorid");
}QString frmMain::getDiskNum()
{return getWMIC("wmic diskdrive where index=0 get serialnumber");
}