#include <QTimer>

#include <QMutex> //多线程

#include <QThread>

 

 

    QThread* plantimer_thread = new QThread(this);

    QTimer* plantimer = new QTimer();

    plantimer->moveToThread(plantimer_thread);

    plantimer->setInterval(1500);

    //connect(plantimer_thread,&QThread::start, plantimer,&QTimer::start);//通过线程开启来触发定时器开启

    connect(plantimer_thread, SIGNAL(started()), plantimer, SLOT(start()));//通过线程开启来触发定时器开启

    connect(plantimer, &QTimer::timeout, this, &MainWindow::timerAutoSendSlots, Qt::DirectConnection);//信号发出后立即调用槽函数，槽函数在发出信号的线程中执行

    connect(plantimer_thread, &QThread::finished, this, &QObject::deleteLater);//线程结束，自动关闭线程

    plantimer_thread->start();

void MainWindow::timerAutoSendSlots()

{

    qDebug() << QStringLiteral("当前线程id：") << QThread::currentThread();

}