CLIPS使用规则递增变量

Question

我想在规则运行时增加安全性.现在它什么都没改变.事实(human_resources n)确实存在.

(defglobal？security = 0)

(defrule rule1(human_resources n)=>(defglobal？security =(+？security 1)))

这导致？*security = 1 :( defglobal？security = 0)(defglobal？security =(+？security 1))

Answer 1

CLIPS> (defglobal ?*security* = 0)
CLIPS> 
(defrule rule1
   (human_resources n)
   =>
   (bind ?*security* (+ ?*security* 1)))
CLIPS> (reset)
CLIPS> ?*security*
0
CLIPS> (assert (human_resources n))
<Fact-1>
CLIPS> (run)
CLIPS> ?*security*
1
CLIPS>