guoqi.txt

CLIPS是一个专家系统

;我在学习clips,所以来练习一下，以下代码实现了基本功能 
(deftemplate   stationcolors 
(slot   station   (type   STRING)   (default   ?DERIVE)) 
(multislot   colors   (type   SYMBOL)   (default   ?DERIVE)) 
) 
(deffacts   stationcolors_list 
(stationcolors   (station   "United   States ")   (colors   red   white   blue)) 
(stationcolors   (station   "Belgium ")   (colors   black   yellow   red)) 
(stationcolors   (station   "Poland ")   (colors   white   red)) 
(stationcolors   (station   "Monaco ")   (colors   white   red)) 
(stationcolors   (station   "Sweden ")   (colors   yellow   blue)) 
(stationcolors   (station   "Panama ")   (colors   red   white   blue)) 
(stationcolors   (station   "Jamaica ")   (colors   black   yellow   green)) 
(stationcolors   (station   "Colombia ")   (colors   yellow   blue   red)) 
(stationcolors   (station   "Italy ")   (colors   green   white   red)) 
(stationcolors   (station   "Ireland ")   (colors   green   white   orange)) 
(stationcolors   (station   "Greece ")   (colors   blue   white)) 
(stationcolors   (station   "Botswans ")   (colors   blue   white   black)) 

) 

(defrule   startup 
=> 
(printout   t   "Please   input   a   color   : "     ) 
(assert   (color   (read)   )   ) 
) 

(defrule   check_color   
(color   ?color-read) 
(stationcolors   (station   ?station)   (colors   $?colors)) 
=>   
(bind   ?lenColors   (length   ?colors)) 
(loop-for-count   (?count1   1   ?lenColors)   do 
    (   if   (eq   ?color-read   (nth$   ?count1   ?colors))   then   
    (printout   t   ?station   "   :   "   ?colors   crlf   ) 
) 
) 
)