头文件:mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QFileDialog>
#include <QFileInfo>
#include <QDateTime>
#include <QString>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
private slots:
void openFileSlot();
};
#endif // MAINWINDOW_H
main.cpp:
#include "mainwindow.h"#include <QApplication>int main(int argc, char *argv[]){QApplication a(argc, argv);MainWindow w;w.show();
return a.exec();}
mainwindow.cpp
#include "mainwindow.h"#include "ui_mainwindow.h"MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow){ui->setupUi(this);QObject::connect(ui->openFileButton,SIGNAL(clicked()),this,SLOT(openFileSlot()));}MainWindow::~MainWindow(){delete ui;}void MainWindow::openFileSlot(){QString fileName=QFileDialog::getOpenFileName(this, tr("Open File"),"/home");QFileInfo info(fileName);ui->fileSizelineEdit->setText(QString::number(info.size()));QDateTime create=info.created();ui->createTimelineEdit->setText(create.toString("yyyy-MM-dd"));QDateTime lastRead=info.lastRead();ui->lastReadlineEdit->setText(lastRead.toString("yyyy-MM-dd"));if(info.isDir())ui->isDir->setText(QString::fromLocal8Bit("是"));elseui->isDir->setText(QString::fromLocal8Bit("不是"));}