To more cleanly separate the DAL- and BLL-related classes, let's create two subfolders in the App_Code folder, DAL and BLL.

为了更加清晰的区分DAL和BLL的类，我们在App_Code文件夹中建立两个子文件夹，分别命名为DAL和BLL。

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Create a c: \ flatfiles folder, and create four subfolders in it.

创建c： \flatfiles文件夹，然后在其中创建四个子文件夹。

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Create "Work", "Personal" and "Someday Maybe" folders - I created 3 subfolders under my main Outlook inbox for this purpose.

创建“工作”、“个人”、“其他”文件夹——我创建了3个子文件夹在我的Outlook收件箱里。

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Create new root folders and subfolders.

创建新的根文件夹和子文件夹。

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Create new root folders and subfolders.

创建新的根文件夹和子文件夹。

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