QT--save path

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foreword

When you were a kid, everyone encouraged you to grow and become a mature person who stopped being childish. However, there are few people who encourage you to continue to grow and become a person who doubts and resists the wrong trend of society.
--Paul Graham, Hacker and Painter.

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1. Export – Custom Folder

When the software needs to export data, you can choose to customize the folder and choose the path to save.

QString strDir = QFileDialog::getExistingDirectory(
                this
                ,tr("Open Directory")
                ,"/home"
                ,QFileDialog::ShowDirsOnly|QFileDialog::DontResolveSymlinks);

    if(strDir != "")
    {
    
    
        m_threadRun.m_strPath = strDir;
        ui->LEdt_LogPath->setText(m_threadRun.m_strPath);
    }

2. Export – Custom File

When the software needs to export data, you can choose to customize the selected file, such as txt, excel, log and other files.

    QString strPath;
    strPath = QFileDialog::getSaveFileName(this,"保存文件","G:","Excel File(*.xls,*.xlsx)");

    QString strPath = QFileDialog::getSaveFileName(this,"保存文件","G:","File(*.txt)");
    if(strPath != "")
    {
    
    
    }

3. Export – select folder

    QDateTime time = QDateTime::currentDateTime();        //获取系统当前时间
    QString info = time.toString("yyyy-MM-dd");

    QString path=QCoreApplication::applicationDirPath()+"/"+"操作日志";/*保存log文件的路径*/
    QDir dir(path);
    if(!dir.exists()){
    
    
        dir.mkdir(path);//新建文件夹
    }
    QString strPath = path + "/"+ info + "_log.txt";
    QFile file(strPath);
    bool isOK = file.open(QIODevice::WriteOnly|QIODevice::Append);//只写
    if(isOK)
    {
    
    
        QString timestr = time.toString("yyyy-MM-dd hh:mm:ss.zzz");
        QTextStream stream(&file);
        stream<<timestr<<":"<<str<<"\r\n";
    }
    file.close();

4. Import – select file

    QString strPath = QFileDialog::getOpenFileName(this,"保存文件","G:","File(*.txt)");
    if(strPath != "")
    {
    
    
    }

Summarize

Good at summarizing, go further.