1 QString strProcessName = "QQ.exe";
 2 bool bIsExist = false; // 进程是否存在
 3 QProcess process;
 4 process.start("tasklist.exe");
 5 if (process.waitForFinished())
 6 {
 7     QByteArray result = process.readAll();
 8     QString exe = QString(result);
 9     if (exe.contains(strProcessName))
10     {
11         bIsExist = true; // 找到了
12     }
13 }
14 process.close();
15 
16 //结束进程
17 QStringList list;
18 list << "/im" << strProcessName << "/f";
19 QProcess::execute(QLatin1String("taskkill"), list);   //程序需以管理员权限运行