问题
I have a situation where a user can specify two separate pathnames, and I need to check whether one pathname is "inside" the other one. I can do this if both pathnames are UNC, or both are drive-letter-based, but what if they are mixed?
Can you "normalise" a path such as "C:\Program Files" to "\\[this computer name]\C\Program Files"? Obviously, I can't go the other way, as a network folder in UNC format may not have a corresponding drive letter mapped to it.
回答1:
Have a look at ExpandUNCFileName function.
来源：https://stackoverflow.com/questions/10458753/delphi-comparing-two-pathnames-when-one-is-unc-and-one-is-drive-letter-specifi