资料来源 : Free On-Line Dictionary of Computing

gensym
     
         /jen'sim/ (From the {MacLISP} for "generated
        symbol") To invent a new name for something temporary, in
        such a way that the name is almost certainly not in conflict
        with one already in use.
     
        The canonical form of a gensym is "Gnnnn" where nnnn
        represents a number; any {LISP} {hacker} would recognise G0093
        (for example) as a gensym.  Gensymmed names are useful for
        storing or uniquely identifying crufties.
     
        [{Jargon File}]
     
        (1999-10-31)