1
(define str '("3" "+" "3"))
(define list '(3 + 4))
(define (tokes str)
(case (car str)
((or "+" "-" "*" "/")(write "operand")
(tokes (cdr str)))
(else (write "other"))
))
(define (tokelist)
(case (car list)
((or "+" "-" "*" "/")(write "operand"))
(else (write "other"))))
정말 고마워요! – Ceelos
내 기쁨 - 도움이 되니 기쁩니다. – craigmj