QT -- 獲取文件夾位置，並創建新的文件夾

step 1 ：獲取路徑：

 

 單擊按鍵【FilePath】，選擇需要保存文件/文件夾的路徑，並顯示，

step 2：創建文件夾

 

 槽函數代碼：

//step 1 ：選擇獲取路徑
    QString m_srcDirPath = QFileDialog::getExistingDirectory(
        this, "choose src Directory",
        "/");
    if (m_srcDirPath.isEmpty())
    {
        return;
    }
    else
    {
        qDebug() << "srcDirPath=" << m_srcDirPath;

        m_srcDirPath += "/";
        ui.label_path->setText(m_srcDirPath);
        std::string m_path = m_srcDirPath.toStdString();

//step 2 :創建Snap保存文件夾
        temp_Path = m_path + "SnapImage/";
        QString _SnapPath = QString::fromStdString(temp_Path);

        //創建文件夾
        QDir *snapFile = new QDir;
        bool exist = snapFile->exists(_SnapPath);
        if (exist)
        {
            qDebug() << "exist" << _SnapPath;
        }
        else
        {
            //創建文件夾
            bool ok = snapFile->mkdir(_SnapPath);
            //判斷是否成功
            if (ok)
            {
                qDebug() << "ok";
            }
            else
            {
                qDebug() << "no";
            }
        }
    }