剪辑中RHS规则中的调用函数

Question

Clips中有什么方法可以创建RHS是Function调用的规则？

Answer 1

是：

CLIPS> (deffunction foo()
         (printout t "The function was called." crlf))
CLIPS> (defrule calls-function
         (trigger)
       =>
         (foo)
       )
CLIPS> (reset)
CLIPS> (assert (trigger))
<Fact-1>
CLIPS> (run)
The function was called.
CLIPS>