设计一个闹钟，定时播报内容。

 

#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>
#include <QTimerEvent>
#include <QDateTime>
#include <QMessageBox>
#include <QTextToSpeech>
#include <QDebug>
namespace Ui {
class MainWindow;
}class MainWindow : public QMainWindow
{Q_OBJECTpublic:explicit MainWindow(QWidget *parent = nullptr);~MainWindow();int t;int flag;QTextToSpeech* speecher;
private slots:void on_beginbtn_clicked();void on_closebtn_clicked();void timerEvent(QTimerEvent *tm);private:Ui::MainWindow *ui;
};#endif // MAINWINDOW_H

#include "mainwindow.h"
#include <QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);MainWindow w;w.show();return a.exec();
}

#include "mainwindow.h"
#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow)
{ui->setupUi(this);this->setWindowTitle("闹钟");this->setWindowIcon(QIcon("C:\\Users\\huahua\\Documents\\C++\\QTtxt\\Qtapp\\02demo\\alarm.png"));t =this->startTimer(1000);QDateTime sys_time = QDateTime::currentDateTime();ui->label->setText(sys_time.toString("yyyy-MM-dd hh:mm:ss"));ui->label->setAlignment(Qt::AlignCenter |Qt::AlignVCenter);ui->label->setFont(QFont("Arial",15));ui->closebtn->setEnabled(false);speecher = new QTextToSpeech(this);
}MainWindow::~MainWindow()
{delete ui;
}void MainWindow::on_beginbtn_clicked()
{flag = 1;if(ui->lineEdit->text()==nullptr) {QMessageBox::information(this,"错误","未定时");return;}if(ui->textEdit->toPlainText()==nullptr) {QMessageBox::information(this,"错误","未输入播报信息");return;}ui->lineEdit->setEnabled(false);ui->textEdit->setEnabled(false);ui->beginbtn->setEnabled(false);ui->closebtn->setEnabled(true);
}void MainWindow::on_closebtn_clicked()
{flag=0;ui->lineEdit->setEnabled(true);ui->textEdit->setEnabled(true);ui->beginbtn->setEnabled(true);ui->closebtn->setEnabled(false);
}void MainWindow::timerEvent(QTimerEvent *tm)
{if(tm->timerId()==t) {QDateTime sys_time = QDateTime::currentDateTime();ui->label->setText(sys_time.toString("yyyy-MM-dd hh:mm:ss"));if(flag==1 && ui->label->text()==ui->lineEdit->text()) {speecher->say(ui->textEdit->toPlainText());qDebug()<<"播报成功";flag=0;ui->lineEdit->setEnabled(true);ui->textEdit->setEnabled(true);ui->beginbtn->setEnabled(true);ui->closebtn->setEnabled(false);}}
}