QT day4

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QTimer>
#include <QTime>
#include <QTimerEvent>
#include <QDateTime>
QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
signals:
    void shoot();
    void shoot1();
private slots:

    void on_eventBtn_clicked();//启动
    void eventLab();//当前时间
    void objLab();//设定时间
    void textEdit();
    void on_objBtn_clicked();//停止
private:
    Ui::Widget *ui;
    QTimer timer;
    QTimer timer1;
    //定义一个变量，接收定时器的id
    int tid=0;
};
#endif // WIDGET_H

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    connect(&timer,&QTimer::timeout,this,&Widget::eventLab);
    connect(&timer1,&QTimer::timeout,this,&Widget::textEdit);
}
Widget::~Widget()
{
    delete ui;
}

void Widget::eventLab()
{
    QTime sysTime=QTime::currentTime();
    //将QTime转换为QString
    QString time =sysTime.toString("hh:mm:ss");
    //将字符串展示到ui界面
    ui->objLab->setText(time);
}

void Widget::textEdit()
{
    if(ui->eventBtn->text()==ui->objBtn->text())
    {
       ui->textEdit->setText("你这个年龄段睡的着觉！！！！");
    }
}
void Widget::on_eventBtn_clicked()
{
    timer.start(1000);
    ui->objBtn->setText("08:00:00");
    timer1.start(100);
}

void Widget::on_objBtn_clicked()
{
    timer1.stop();
}