About Pycharm

头文件：

#ifndef WIDGET_H
#define WIDGET_H

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

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();
    void timerEvent(QTimerEvent *e);//函数重写的声明

private slots:
    void on_btn_clicked();

private:
    Ui::Widget *ui;
    //定时器id
    int id;
    //实例化一个语音播报者
    QTextToSpeech *speecher;
};
#endif // WIDGET_H

源代码：

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

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
    , speecher(new QTextToSpeech(this))
{
    ui->setupUi(this);
}
//函数重写的实现
void Widget::timerEvent(QTimerEvent *e)
{
    //获取当前系统的时间
    QTime sys_time = QTime::currentTime();
    //将系统时间转换成字符串
    QString s = sys_time.toString("hh::mm::ss");
    //将系统时间放入标签中
    ui->label_2->setText(s);
    if(ui->lineEdit->text()==ui->label_2->text())
    {
         int i = 0;
         while (i < 5) {
                      speecher->say(ui->label->text());
                      i++;
         }
        // killTimer(id);
    }
}

Widget::~Widget()
{
    delete ui;
}


void Widget::on_btn_clicked()
{
    //启动定时器
    id = startTimer(1000);
}