clips - CLIPS使用规则增加变量

Question

我想在运行规则时增加安全性。现在，它什么也没有改变。事实(human_resources n)确实存在。

(defglobal？security = 0)

(第1条规则
(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>