我的工作，需要为应用程序创建多个临时文件夹的程序。这些将不会被用户看到。该应用程序是用VB.net。我能想到的几个方法可以做到这一点，如增量文件夹名称或随机编​​号的文件夹名称，但我想知道，其他人是如何解决这个问题呢？

I am working on a program that needs to create a multiple temporary folders for the application. These will not be seen by the user. The app is written in VB.net. I can think of a few ways to do it such as incremental folder name or random numbered folder names, but I was wondering, how other people solve this problem?

推荐答案

更新：新增File.Exists每个注释检查（2012君19）

Update: Added File.Exists check per comment (2012-Jun-19)

下面是我在VB.NET中使用过。基本相同，presented，但我通常不想立即创建该文件夹。

Here's what I've used in VB.NET. Essentially the same as presented, except I usually didn't want to create the folder immediately.

的优点是使用GetRandomFilename是，它不创建一个文件，所以您不必如果您使用的名称不是文件的东西等进行清理。就像使用它的文件夹名称。

The advantage to use GetRandomFilename is that it doesn't create a file, so you don't have to clean up if your using the name for something other than a file. Like using it for folder name.

Private Function GetTempFolder() As String
    Dim folder As String = Path.Combine(Path.GetTempPath, Path.GetRandomFileName)
    Do While Directory.Exists(folder) or File.Exists(folder)
        folder = Path.Combine(Path.GetTempPath, Path.GetRandomFileName)
    Loop

    Return folder
End Function

随机文件名示例：

C：的Documents and Settings 用户名本地设置的 Temp u3z5e0co.tvq

C:Documents and SettingsusernameLocal SettingsTempu3z5e0co.tvq

下面是一个使用GUID来获得临时文件夹名称的变化。

Here's a variation using a Guid to get the temp folder name.

Private Function GetTempFolderGuid() As String
    Dim folder As String = Path.Combine(Path.GetTempPath, Guid.NewGuid.ToString)
    Do While Directory.Exists(folder) or File.Exists(folder)
        folder = Path.Combine(Path.GetTempPath, Guid.NewGuid.ToString)
    Loop

    Return folder
End Function

GUID 示例：

C：的Documents and Settings 用户名本地设置的 Temp 2dbc6db7-2d45-4b75-b27f-0bd492c60496

C:Documents and SettingsusernameLocal SettingsTemp2dbc6db7-2d45-4b75-b27f-0bd492c60496