Qt中点击按钮获取文件夹路径及获取文件路径

获取文件路径

    //打开文件夹中的图片文件
    QString inputImagePath = QFileDialog::getOpenFileName(this,
                                 "Please choose an image file",
                                 "",
                                 "Image Files(*.jpg *.png *.bmp *.pgm *.pbm);;All(*.*)");

    if (inputImagePath.isEmpty()) {
        return;
    }
    else {
        m_s_inputImagePath = inputImagePath;
        ui->lineEdit_inputImagePath->setText(m_s_inputImagePath);//将路径显示在lineEdit控件中
    }

获取文件夹路径

    // 获取文件夹路径
    QString filepath = QFileDialog::getExistingDirectory(this,
                                                    "Input the image path",
                                                    "./");
    if (filepath.isEmpty()) {
        return;
    }
    else {
        ui->lineEdit_inputImagePath->setText(filepath); //将文件路径显示在lineEdit控件中
    }