Question

我想知道如何结合我的两条规则，例如：

(defrule Rules::pants
  (declare (auto-focus TRUE))
(answer (ident color) (text red))
  (answer (ident pants) (text yes))
  =>
(printout t "you are wearing red pants"))

(defrule Rules::shirt
  (declare (auto-focus TRUE))
(answer (ident shirt) (text blue))
  (answer (ident red) (text yes))
  =>
(printout t "you are wearing blue shirt"))

如果我写下这两条规则：

(defrule Rules::pants
  (declare (auto-focus TRUE))
(answer (ident red) (text yes))
  (answer (ident pants) (text yes))
(answer (ident shirt) (text yes))
  (answer (ident blue) (text yes))
  =>
(printout t "you are wearing blue shirt and red pants"))

我希望它像OR语句一样，在满足任何条件时触发。

Answer 1

天真的答案是

(defrule Rules::pants      
  (or (and (answer (ident red) (text yes))
           (answer (ident pants) (text yes)))
      (and (answer (ident shirt) (text yes))
           (answer (ident blue) (text yes)))
  )
 =>
   (printout t "you are wearing blue shirt or red pants")
)

第一个障碍是如果此人有红色裤子和蓝色衬衫，则此规则会触发两次。最有可能的是，这并不重要，因为这个人没有被识别出来，所以我们可以假设只有一个人在T台上。

已编辑如果属性彼此不关联，即当颜色和项目可以自由组合时，则会发生第二次阻碍。考虑一个蓝色牛仔裤和红色格仔衬衫的乡下人。这条规则会被解雇，因为有＆＃34;裤子＆＃34;和＆＃34;衬衫＆＃34;和＆＃34;红色＆＃34;和＆＃34;蓝色＆＃34;，足以根据模式进行匹配。但OP在评论中断言（见下文），有一些方法可以避免这种情况。

如何将两个规则合二为一？

1 个答案: