qfedu-qt-level/DialogTest/widget.cpp

#include "widget.h"
#include <QFileDialog>
#include <QString>
#include <QDebug>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    this->resize(600,400);
    button = new QPushButton("选择文件",this);
    button->resize(100,100);
    button->move(250,100);

    connect(button,&QPushButton::clicked,[](){
//        QString str = QFileDialog::getOpenFileName();
//        qDebug()<<str;
        QStringList str = QFileDialog::getOpenFileNames();
        qDebug()<<str;
    });

}

Widget::~Widget()
{
}