6-18作业

作业1：

mywidget.h

#ifndef MYWIDGET_H
#define MYWIDGET_H#include <QWidget>
#include <QLabel>
#include <QMessageBox>QT_BEGIN_NAMESPACE
namespace Ui { class myWidget; }
QT_END_NAMESPACEclass myWidget : public QWidget
{Q_OBJECTpublic:myWidget(QWidget *parent = nullptr);~myWidget();signals:
void myjump();public slots:void play();private slots:void on_pushButton_2_clicked();void on_pushButton_3_clicked();void on_pushButton_4_clicked();private:Ui::myWidget *ui;
};
#endif // MYWIDGET_H

main.cpp

#include "mywidget.h"
#include "second.h"#include <QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);myWidget w;second s;w.show();QObject::connect(&w,&myWidget::myjump,&s,&second::myslot);return a.exec();
}

mywidget.cpp

#include "mywidget.h"
#include "ui_mywidget.h"myWidget::myWidget(QWidget *parent): QWidget(parent), ui(new Ui::myWidget)
{ui->setupUi(this);this->setWindowFlag(Qt::FramelessWindowHint);ui->lineEdit->setPlaceholderText("手机号/QQ号");ui->lineEdit_1->setEchoMode(QLineEdit::Password);connect(ui->pushButton,&QPushButton::clicked,this,&myWidget::play);
}//实现点击登录后的相关功能
void myWidget::play()
{QString text1=ui->lineEdit->text();QString text2=ui->lineEdit_1->text();if(text1=="666" && text2=="123456"){QMessageBox::information(this,"提示","登录成功",QMessageBox::Ok);this->close();emit myjump();}else{QMessageBox::StandardButton res=QMessageBox::critical(this,"错误","账号和密码不匹配，是否重新登录",QMessageBox::Yes|QMessageBox::No);if(res==QMessageBox::Yes){ui->lineEdit_1->setText("");}else{this->close();}}
}
myWidget::~myWidget()
{delete ui;
}//实现点击取消后的相关功能
void myWidget::on_pushButton_2_clicked()
{this->showMinimized();
}void myWidget::on_pushButton_3_clicked()
{this->close();
}void myWidget::on_pushButton_4_clicked()
{QMessageBox::StandardButton res=QMessageBox::question(this,"问题","您是否确定要退出登录？",QMessageBox::Yes|QMessageBox::No);if(res==QMessageBox::Yes){this->close();}
}

作业2：

mywidget.h

#ifndef MYWIDGET_H
#define MYWIDGET_H#include <QWidget>
#include <QTimerEvent>
#include <QTime>
#include <QDebug>
#include <QTextToSpeech>QT_BEGIN_NAMESPACE
namespace Ui { class myWidget; }
QT_END_NAMESPACEclass myWidget : public QWidget
{Q_OBJECTpublic:myWidget(QWidget *parent = nullptr);~myWidget();void timerEvent(QTimerEvent* E);private slots:void on_pushButton_clicked();void on_pushButton_2_clicked();private:Ui::myWidget *ui;int id;
};
#endif // MYWIDGET_H

mywidget.cpp

#include "mywidget.h"
#include "ui_mywidget.h"myWidget::myWidget(QWidget *parent): QWidget(parent), ui(new Ui::myWidget)
{ui->setupUi(this);this->setWindowTitle("闹钟");
}myWidget::~myWidget()
{delete ui;
}void myWidget::timerEvent(QTimerEvent *E)
{if(E->timerId()==id){QTime time1=QTime::currentTime();QString t=time1.toString(("hh:mm:ss"));ui->label->setText(t);ui->label->setAlignment(Qt::AlignCenter);if(ui->label->text()==ui->lineEdit->text()){ui->label_3->setText("懒虫起床了! 懒虫起床了!");QTextToSpeech* speech=new QTextToSpeech(this);speech->say("懒虫起床了! 懒虫起床了!");}}
}void myWidget::on_pushButton_clicked()
{QString fel=ui->lineEdit->text();
}void myWidget::on_pushButton_2_clicked()
{QString fel=ui->pushButton_2->text();if(fel=="打开"){id=startTimer(1000);ui->pushButton_2->setText("关闭");}else{killTimer(id);ui->pushButton_2->setText("打开");}
}