QT信号槽

10 Qt中信号和槽-点击按钮关闭窗口_哔哩哔哩_bilibili

 

#include "widget.h"
#include "ui_widget.h"
#include 

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{

    ui->setupUi(this);

    QPushButton *btn = new QPushButton;
//    btn->show();
    btn->setParent(this);
    btn->setText("苏轼");
    QPushButton *btn2 = new QPushButton("从此小舟逝，江海寄余生！");
    btn2->setParent(this);
    btn2->move(100, 100);

    resize(640, 480);

    this->setWindowTitle("poem");
//    设置固定窗口的大小
//    this->setFixedSize(640, 480);
//    利用connect进行链接，
    connect(btn2, &QPushButton::clicked, this, &Widget::close);


}

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

 

单击后会关闭