DAY52

widget.h :

#ifndef WIDGET_H
#define WIDGET_H

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT




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


    QLineEdit *edit;


     void timerEvent(QTimerEvent *e) override;   //定时器事件处理函数


private slots:

     void on_btn1_clicked();

     void on_btn2_clicked();

private:
    Ui::Widget *ui;

    int timer_id;  //定时器的id号

    QTextToSpeech *speecher;
};
#endif // WIDGET_H

main.cpp

#include "widget.h"

#include 

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

widget.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);
}

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



//定时器事件处理函数
void Widget::timerEvent(QTimerEvent *e)
{
    //static int num = 1;
    //ui->label->setNum(num++);
    QString t;
    if(e->timerId() == timer_id)    //说明定时器1到位
    {
        QTime sys_t = QTime::currentTime();   //获取系统时间

        //将QTime类对象转换成字符串
        t = sys_t.toString("hh:mm:ss");
        ui->lab1->setText(t);
    }

    QString s = ui->lineEdit->text();


    if(s == t)
    {
      speecher->say(ui->textEdit->toPlainText());
    }
    ui->lab1->setText(t);
}



void Widget::on_btn1_clicked()
{
    timer_id = this->startTimer(1000);


}

void Widget::on_btn2_clicked()
{
    this->killTimer(timer_id);    //关闭给定的定时器
}