从完整的文件名路径中获取文件夹名称 [英] Getting the folder name from a full filename path

问题描述

string path = "C:folder1folder2file.txt";

我可以使用哪些对象或方法来给我 folder2 的结果?

What objects or methods could I use that would give me a result of folder2?

推荐答案

我可能会使用类似的东西:

I would probably use something like:

string path = "C:/folder1/folder2/file.txt";
string lastFolderName = Path.GetFileName( Path.GetDirectoryName( path ) );

对 GetDirectoryName 的内部调用将返回完整路径，而对 GetFileName() 的外部调用将返回最后一个路径组件 - 这将是文件夹名称.

The inner call to GetDirectoryName will return the full path, while the outer call to GetFileName() will return the last path component - which will be the folder name.

无论路径是否实际存在，此方法都有效.但是，这种方法确实依赖于最初以文件名结尾的路径.如果不知道路径是以文件名还是文件夹名结尾 - 那么它需要您首先检查实际路径以查看该位置是否存在文件/文件夹.在这种情况下，Dan Dimitru 的回答可能更合适.

This approach works whether or not the path actually exists. This approach, does however, rely on the path initially ending in a filename. If it's unknown whether the path ends in a filename or folder name - then it requires that you check the actual path to see if a file/folder exists at the location first. In that case, Dan Dimitru's answer may be more appropriate.

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