Qt 闹钟小程序---定时器事件实现

.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QTime>
#include <QTimerEvent>
#include <QTextToSpeech>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

    //时间事件函数
    void timerEvent(QTimerEvent *e);

signals:




private slots:
    void on_startbtn_clicked();

    void on_endbtn_clicked();

private:
    Ui::Widget *ui;

    QTextToSpeech *speecher;

     int tid1;
     int tid2;

};
#endif // WIDGET_H

.cpp

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

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

    speecher = new QTextToSpeech(this);

    //1.固定系统时间展示
    QTime sys_tinme = QTime::currentTime();
    QString t = sys_tinme.toString("h