C++QT---QT-day3

#include "widget.h"
#include "ui_widget.h"
//需要在.pro文件第一行加 texttospeechWidget::Widget(QWidget *parent): QWidget(parent), ui(new Ui::Widget)
{ui->setupUi(this);ui->lineEdit->setPlaceholderText("时:分:秒");//设定框占位字符//ui->textEdit->setText("春眠不觉晓");ui->lineEdit->setAlignment(Qt::AlignCenter);//居中显示ui->textEdit->setAlignment(Qt::AlignCenter);speecher=new QTextToSpeech(this);//给播报员分配空间
}Widget::~Widget()
{delete ui;
}void Widget:: timerEvent(QTimerEvent *e)
{if(e->timerId() == tId){QTime sys_time = QTime::currentTime(); //获取当前系统时间QString s = sys_time.toString("hh:mm:ss");//把系统时间转换成字符串ui->lab_time->setText(s);//将系统时间放入标签中ui->lab_time->setAlignment(Qt::AlignCenter);//居中显示if(s == ui->lineEdit->text())//判断设定时间与系统时间是否匹配{speecher->say(ui->textEdit->toPlainText());}}
}void Widget::on_startBtn_clicked()//定时器启动事件
{tId=startTimer(1000);
}void Widget::on_stopBtn_clicked()//定时器关闭事件
{this->killTimer(tId);
}

#ifndef WIDGET_H
#define WIDGET_H#include <QWidget>
#include <QTimerEvent>
#include <QTime>
#include <QTimer>
#include <QLabel>
#include <QLineEdit>
#include <QTextToSpeech>QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACEclass Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = nullptr);~Widget();void timerEvent(QTimerEvent *e);private slots:void on_startBtn_clicked();void on_stopBtn_clicked();private:Ui::Widget *ui;int tId;QTextToSpeech *speecher;
};
#endif // WIDGET_H