c++ QT-优快云博客

本文链接：https://blog.youkuaiyun.com/spring2021/article/details/129411791

此博客展示了使用Qt和C++进行开发的代码。包含main函数、form和widget的头文件及实现文件，通过信号与槽机制实现窗口的显示和隐藏切换，体现了Qt框架在C++开发中的应用。

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MAIN:

include "widget.h"

#include <QApplication>

int main(int argc, char *argv[])

{

QApplication a(argc, argv);

Widget w;

w.show();

Form f;

QObject::connect(&w,&Widget::emit_jump_signals，&f,&Form::on_show_slots);

QObject::connect(&f,&Form::emit_jump2_signals,&w,&Widget::on_show2_slots);

return a.exec();

}

form.h

#include <QWidget>

namespace Ui {

class Form;

}

class Form : public QWidget

{

Q_OBJECT

public:

explicit Form(QWidget *parent = nullptr);

~Form();

public slots:

void on_show_slots();

private slots:

void on_jump2_btn_clicked();

private:

Ui::Form *ui;

signals:

void emit_jump2_signals();

};

widget.h

#include <QWidget>

QT_BEGIN_NAMESPACE

namespace Ui { class Widget; }

QT_END_NAMESPACE

class Widget : public QWidget

{

Q_OBJECT

public:

Widget(QWidget *parent = nullptr);

~Widget();

public slots:

void on_jump_btn_clicked();

void on_show2_slots();

signals:

void emit_jump_signals();

private:

Ui::Widget *ui;

};

Form.cpp

Form::Form(QWidget *parent) :

QWidget(parent),

ui(new Ui::Form)

{

ui->setupUi(this);

}

Form::~Form()

{

delete ui;

}

void Form::on_show_slots()

{

this->show();

}

void Form::on_jump2_btn_clicked()

{

emit emit_jump2_signals();

this->hide();

}

Widget.cpp

Widget::Widget(QWidget *parent)

: QWidget(parent)

, ui(new Ui::Widget)

{

ui->setupUi(this);

}

Widget::~Widget()

{

delete ui;

}

void Widget::on_jump_btn_clicked()

{

emit emit_jump_signals();

this->hide();

}

void Widget::on_show2_slots()

{

this->show();

}