0
> (procedure? +)
#t
> (procedure? (car '(+ 2 3)))
#f
> (list? '(+ 2 3))
#t
> (symbol? (car '(+ 2 3)))
#t
> (define someList (list + 2 3))
> someList
> '(#< procedure:+ > 2 3)
> (procedure? (car someList))
#t
>
使用引號時,是否有可能被識別爲過程?關於計劃中的報價
編號''+'是一個符號,因爲引用會阻止評估符號。 – uselpa
[引用和列表有什麼區別?]可能的重複(http://stackoverflow.com/questions/34984552/what-is-the-difference-between-quote-and-list) –