我variable MAP has no value在Common Lisp代码中收到错误(我在Ubuntu终端中使用clisp shell).我的代码看起来像这样(*map*只是一个关联列表,所以你可以跳过它):
(setf *map* '((shore (stars cast reflections on the rippling sea.
it fills you with a strong but unplaceable emotion.)
(east forest))
(forest (a roof of treetops blots out the sun. something rustles
behind you.)
(west shore)
(north cliff))
(cliff (you nearly stumble into a long and fatal fall into the
sea far below you. you feel a strange urge to throw
yourself off the ledge. it would probably wisest …