我想定义一些模块规则来断言模块事实,然后按get-fact-list
批处理获取一组事实列表,但是发生了错误!
CLIPS (6.31 6/12/19)
CLIPS> (defmodule M)
CLIPS> (deftemplate M::T (slot k1))
CLIPS> (defrule M::T (testvalue 1) => (assert (M::T (k1 "v1"))))
[MODULDEF1] Illegal use of the module specifier.
ERROR:
(defrule M::T
(testvalue 1)
=>
(assert (M::T
CLIPS>
预期:
CLIPS> (defmodule M)
CLIPS> (deftemplate M::T (slot k1))
CLIPS> (defrule M::T (testvalue 1) => (assert (M::T (k1 "v1"))))
CLIPS> (assert (testvalue 1))
CLIPS> (get-fact-list M)
;; return the facts that M::rulexx assert
为什么出现语法错误?如何为defrule
的{{1}}做此事?
答案 0 :(得分:1)
不要在assert命令中使用M :: T。由于该碎片包含在模块M中,因此无需使用模块说明符就可以引用M可见的所有deftemplate。
CLIPS (6.31 6/12/19)
CLIPS> (defmodule M)
CLIPS> (deftemplate M::T (slot k1))
CLIPS> (defrule M::T (testvalue 1) => (assert (T (k1 "v1"))))
CLIPS> (assert (testvalue 1))
<Fact-1>
CLIPS> (get-fact-list M)
(<Fact-1>)
CLIPS>