Please forgive my terrible English
When I scan DLL or decompile them
Some DLL have export their function name clearly such as DoIt , GetIt etc but some just export funcname like number such as 478 , 216 etc ...
So what makes the DLL just generate funcname like 478 or just because it is the original name of them ????

It's up to the programmer of the DLL whether he wishes to export functions by name or ordinal.