C# WinForm 選擇目錄路徑和文件路徑

private string SelectPath() //彈出一個選擇目錄的對話框
{
     FolderBrowserDialog path = new FolderBrowserDialog();
     path.ShowDialog();
     return path.SelectedPath;
}
private string SelectFile() //彈出一個選擇文件的對話框
{
     OpenFileDialog file = new OpenFileDialog();
     file.ShowDialog();
     return file.SafeFileName;
}