CLIPS 规则触发不止一次

Question

您好，我正在尝试在 Clips 中制作一个专家系统，但是当植物应该只触发一次规则时，它触发的次数与规则中指定的特征一致的次数一样多，有没有办法做到这一点事实中每个植物只触发一次规则？

我尝试使用 test()（通过将所有条件 or() 包含在测试中）语句，但它没有用，它会给我带来工厂模板的麻烦

规则示例


(defrule ruleexp
   (or
   (Plant (grownt normal))
   (Plant (leaf purple))
   (Plant (roots burned))
   (Plant (fruit dry)))
   =>
   (printout t "this should print only once" crlf))

Answer 1

您可以使用 exists 条件元素只创建一个激活：

         CLIPS (6.31 6/12/19)
CLIPS> 
(deftemplate Plant
   (slot growth)
   (slot leaf)
   (slot roots)
   (slot fruit))
CLIPS>    
(defrule ruleexp
   (exists 
      (or (Plant (growth normal))
          (Plant (leaf purple))
          (Plant (roots burned))
          (Plant (fruit dry))))
   =>
   (printout t "this should print only once" crlf))
CLIPS>    
(assert (Plant (growth normal) 
               (leaf blue)
               (roots burned) 
               (fruit wet)))
<Fact-1>
CLIPS> (run)
this should print only once
CLIPS>

CLIPS 规则触发不止一次

CLIPS Rules trigger more than once

system

rules

clip

clips