QT 读取文件属性-------------------------窗体

a>.fileinfo.cpp Source Code:
#include "fileinfo.h"
#include "ui_fileinfo.h"
#include <QWidget>
#include <QFile>
#include <QFileDialog>
#include <QObject>
#include <QDate>
 
 
fileinfo::fileinfo(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::fileinfo)
{
    ui->setupUi(this);
    this->setMaximumSize(470,290);
    this->setMinimumSize(470,290);
    QObject::connect(ui->OpenFloderpushButton,SIGNAL(clicked()),this,SLOT(getFileInfoSlot()));
}
 
 
fileinfo::~fileinfo()
{
    delete ui;
}
 
 
void fileinfo::getFileInfoSlot()
{
    QString fileName=QFileDialog::getOpenFileName(this,"Open File",QDir::homePath());
    if(fileName.isEmpty())
    {
        QMessageBox::information(this,"Error Message","Please Select a File");
        return;
    }
    QFileInfo info(fileName);
    ui->FileSizelineEdit->setText(QString::number(info.size()));//get file size qint64
    QDateTime create=info.created();
    ui->FileCreateDatelineEdit->setText(create.toString("yyyy-MM-dd hh:mm:ss"));
    QDateTime lastRead=info.lastRead();
    ui->lastAccesslineEdit->setText(lastRead.toString("yyyy-MM-dd hh:mm:ss"));
    if(info.isDir())
    {
        ui->IsDirectorylineEdit->setText("是");
    }
    else
    {
        ui->IsDirectorylineEdit->setText("不是目录");
    }
 
 
}
 
 
void fileinfo::on_closepushButton_clicked()
{
    this->close();
}

b>.main.cpp Source Code:

#include "fileinfo.h"
#include <QApplication>
 
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QString strPath=QApplication::applicationDirPath();
    strPath+="/fonts.png";
    a.setWindowIcon(QIcon(strPath));
    fileinfo w;
    w.show();
 
 
    return a.exec();
}
 
 

c.>.fileinfo.h Source Code:

#ifndef FILEINFO_H
#define FILEINFO_H
#include <QMainWindow>
#include <QFileInfo>
#include <QDir>
#include <QWidget>
#include <QMessageBox>
#include <QDate>
 
 
namespace Ui {
class fileinfo;
}
 
 
class fileinfo : public QWidget
{
    Q_OBJECT
 
 
public:
    explicit fileinfo(QWidget *parent = 0);
    ~fileinfo();
 
 
private:
    Ui::fileinfo *ui;
private slots:
    void getFileInfoSlot();//用于获当前文件的属性信息
    void on_closepushButton_clicked();
};
 
 
#endif // FILEINFO_H


d>.fileinfo_1.pro Source Code:

#-------------------------------------------------
#
# Project created by QtCreator 2018-06-27T16:20:03
#
#-------------------------------------------------
 
 
QT       += core gui
 
 
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
 
TARGET = fileinfo_1
TEMPLATE = app
 
 
# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
 
 
# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
 
 
 
SOURCES += \
        main.cpp \
        fileinfo.cpp
 
 
HEADERS += \
        fileinfo.h
 
 
FORMS += \
        fileinfo.ui
RC_FILE=icon.rc

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转载自blog.csdn.net/u013934107/article/details/80833897