windows检测进程是否存在？强制杀死进程

bool checkProcessByQProcess(const QString &strExe)
{
  bool bResult = false;
  QProcess tasklist;
  tasklist.start("tasklist",
  QStringList() << "/NH"
  << "/FO" << "CSV"
  << "/FI" << QString("IMAGENAME eq %1").arg(strExe));
  tasklist.waitForFinished();
  QString strOutput = tasklist.readAllStandardOutput();
  if (strOutput.startsWith(QString("\"%1").arg(strExe)))
  {
  bResult = true;
  }
  return bResult;
}

void killProcessByQProcess(const QString &strExe)
{
  QString strKill = QString("taskkill /im %1 /f").arg(strExe);
  if (0 != QProcess::execute(strKill)) {
  qDebug() << "killProcess error" << strExe;
  }
}

if (checkProcessByQProcess("XXX.exe"))
    killProcessByQProcess("XXX.exe");