Qt实现一个伪coroutine，应用场景while死循环尝试重连

    QEventLoop loop;
    QTimer timer;
    int tryTimes = 3;
    int currentTryRound = 0;
    QObject::connect(&timer, &QTimer::timeout,[&](){
        qDebug()<<"try your job here ,current try "<<(++currentTryRound)<<" times";
        QCoreApplication::processEvents();
        if ( currentTryRound > ( tryTimes - 1 ) ) {
            loop.quit();
        }
    });

    timer.start(1000); //interval 1000ms
    loop.exec();

    if (timer.isActive()) {
        timer.stop();
    }