问题
I want to use functions of Path class (GetDirectoryName, GetFileName, Combine,etc.) with paths in URL format with slash (/).
Example of my path:
"xxx://server/folder1/folder2/file"
I tried to do the job with Path functions and in the end just replaced the separator.
I've found that the GetDirectoryName function does not correctly replace the slashes:
Path.GetDirectoryName(@"xxx://server/folder/file") -> @"xxx:\server\folder"
Like you see one slash is lost.
How can I cause the Path functions to use the 'alternative' separator?
Can I use another class with the same functionality?
回答1:
I'm afraid GetDirectoryName, GetFileName, Combine,etc. use Path.DirectorySeparatorChar in the definition and you want Path.AltDirectorySeparatorChar.
And since Path is a sealed class, I think the only way to go about is string replacement.You can replace Path.DirectorySeparatorChar('\') with Path.AltDirectorySeparatorChar('/') and Path.VolumeSeparatorChar(':') with ":/"
回答2:
For GetDirectoryName(), you can use
pageRoot = uri.Remove(uri.LastIndexOf('/') + 1);
回答3:
Have you considered using a combination of System.Uri, System.UriBuilder, and (if necessary) custom System.UriParser subclass(es)?
回答4:
If the URI is a local file URI of the form file://whatever then you can call string path = new Uri(whatever).LocalPath and call the Path methods on it. If you cannot guarantee the Uri is to a local path, you cannot guarantee components of the Uri correspond to machines, folders, files, extensions, use directories, separator characters, or anything else.
来源：https://stackoverflow.com/questions/5624787/path-functions-for-url