问题
I want to make a library that (among other things) parses UNC paths, but I don't fully understand the grammar.
Common example is: \\server\share\path
Are all of those required for a valid file path? I can navigate to \\server (without share) using Windows Explorer, but I assume it is using some share discovery protocol, not something filesystem APIs understand — is this right?
回答1:
You are correct. A UNC path is required to have share name component.
Quoting MSDN:
UNC = \\<hostname>\<sharename>[\<objectname>]*The
<hostname>,<sharename>, and<objectname>are referred to as "pathname components" or "path components". A valid UNC path consists of two or more path components.
https://msdn.microsoft.com/en-us/library/gg465305.aspx
来源：https://stackoverflow.com/questions/28167080/what-is-a-minimal-valid-unc-path