Question

更新的代码：在哪里添加?f<-(practice-is-on-off OFF)

的支票

 (defrule no-practice "Rules for when practice cannot be held"

        (or ?f <- (practice (number-of-paddlers ?p&:(< ?p 6)))
            ?f <- (practice (number-of-coaches ?c&:(< ?c 1))))

        =>
        (modify ?f (practice-is-on-off OFF)))

    ;end

我在CLIPS中定义了一个模板，我正在使用逻辑运算符OR。但是，当我加载模板时，它会抛出错误

[TMPLTDEF1] Invalid slot or not defined in corresponding deftemplate practice.

ERROR:
(defrule MAIN::no-practice "Rules for when practice cannot be held"
   ?f <- (practice (or

这就是我所拥有的：提前感谢任何见解。感谢

(deftemplate practice "structure of a practice"

    (slot number-of-paddlers (type NUMBER))
    (slot number-of-coaches (type NUMBER))
    (slot practice-is-on-off (type SYMBOL) (default ON))
    (slot practice-id (type NUMBER))

)


(defrule no-practice "Rules for when practice cannot be held"
    ?f <- (practice 
    (or
            (number-of-paddlers
                ?v_number-of-paddlers&:(
                    < ?v_number-of-paddlers 6))

            (number-of-coaches
                ?v_number-of-coaches&:(
                    < ?v_number-of-coaches 1))

    )
    )

    =>
        (modify ?f (practice-is-on-off OFF)
        )
)

Answer 1

错误告诉您正在尝试匹配practice deftemplate中名为“或”的插槽，并且该插槽不存在。以下是“无实践”规则的两个备用版本，它们将完成您要执行的操作。：

版本1：

(defrule no-practice "Rules for when practice cannot be held"
    (or ?f <- (practice (practice-is-on-off ON)
                        (number-of-paddlers ?p&:(< ?p 6)))
        ?f <- (practice (practice-is-on-off ON)
                        (number-of-coaches ?c&:(< ?c 6))))
    =>
    (modify ?f (practice-is-on-off OFF)))

请注意，上述规则可能会针对practice触发两次，除非您还检查CE中practice-is-on-off是否为“ON”。

第2版：

(defrule no-practice "Rules for when practice cannot be held"
    ?f <- (practice (practice-is-on-off ON)
                    (number-of-paddlers ?p) (number-of-coaches ?c))
    (test (or (< ?p 6) (< ?c 6)))
    =>
    (modify ?f (practice-is-on-off OFF)))

怎么做逻辑或CLIPS？

1 个答案: