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zhouqiang-cl/gist:72024b676eada23a4b1afb4d423ba007

Last active December 1, 2016 14:57
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common lisp 的函数 RPLACA, RPLACD
Raw
gistfile1.txt
语法
rplaca cons object => cons
rplacd cons object => cons
参数和值
cons --- 一个 cons
object --- 一个 object
描述
rplaca 将 cons 的 car 替换成 object
rplacd 将 cons 的 cdr 替换成 object
代码
* (rplaca '(E F G) '(A B C))
((A B C) F G)
* (rplacd '(E F G) '(A B C))
(E A B C)
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