#include "widget.h"

#include "ui_widget.h"

#include <QTimer>

Widget::Widget(QWidget *parent) :

    QWidget(parent),

    ui(new Ui::Widget)

{

    ui->setupUi(this);

    //启动定时器

    this->id1 = startTimer(1000);

    this->id2 = startTimer(2000);

    //定时器类

    QTimer * timer = new QTimer(this);

    timer->start(500);

    //监听定时器对象发送的信号

    connect(timer,&QTimer::timeout,[=](){

        static int num1 = 1;

        ui->label_3->setText(QString::number(num1++));

    });

    //点击停止按钮 停止定时器对象

    connect(ui->btn_stop,&QPushButton::clicked,[=](){

        timer->stop();

    });

}

Widget::~Widget()

{

    delete ui;

}

void Widget::timerEvent(QTimerEvent *event)

{

    if(event->timerId() == this->id1)

    {

        static int num1 = 1;

        ui->label->setText(QString::number(num1++));

    }

    if(event->timerId() == this->id2)

    {

        static int num2 = 1;

        ui->label_2->setText(QString::number(num2++));

    }

}

![](https://i-blog.csdnimg.cn/direct/d796f88e8d10406e9e38ce21452a6973.png)