我正在研究一个Lisp程序，该程序包含的代码可以读取框的维数，然后将它们从最短到最长的长度进行排序（并将每个新长度设置为新变量）。
当我尝试将我的文件加载到解释器中时，出现以下错误：
** * - EVAL：未定义函数NEW-D1我很困惑，为什么我会得到这个错误，因为 new-d1 不是函数，它是给定框的最短边的长度的变量。
以下代码首先对 new-d1 进行初始化和设置：
defun get-box（）（let（d1 0）（d2 0）（d3 0）（new-d1 0）（new-d2 0）（new-d3 0））（setf d1（read））（setf d2（read））（setf d3（read））（if（= d1 -1） ）（setq new-d1（first（sort（list d1 d2 d3）＃'<）））（setq new- （第二（sort（list d1 d2 d3）＃'<）））（next（sort（list d1 d2 d3）＃'<）））（setq new-d3 - 程序的一部分（新-d1新-d2新-d3））））））如何更改我的代码，以便解释器知道new-d1不是一个函数，并且不会将其视为这样？感谢您的帮助！
编辑添加：程序代码的下一部分：
d2 b）（put-on-c-list（d1 c-list））code>（defun next-part-of-program （b1）（b1））（如果（> d2a）和（再次感谢！
解决方案最后一行 get-box 应该是：
<$ p $ （程序的下一部分新的d1新的d2新的d3）））））你不应该在下一部分程序
的参数I am working on a Lisp program that contains code to read in the dimensions of boxes and then sort them from shortest to longest lengths (and set each of these new lengths as new variables).
When I attempt to load my file into the interpreter, I get the following error:
*** - EVAL: undefined function NEW-D1I am confused as to why I'd be getting this error because new-d1 isn't a function, it's a variable for the length of the shortest edge of a given box.
Here's the code where new-d1 is first initialized and set:
(defun get-box () (let ((d1 0) (d2 0) (d3 0) (new-d1 0) (new-d2 0) (new-d3 0)) (setf d1 (read)) (setf d2 (read)) (setf d3 (read)) (if (= d1 -1) (exit) (progn (setq new-d1 (first (sort (list d1 d2 d3) #'<))) (setq new-d2 (second (sort (list d1 d2 d3) #'<))) (setq new-d3 (third (sort (list d1 d2 d3) #'<))) (next-part-of-program (new-d1 new-d2 new-d3))))))How can I change my code so the interpreter knows new-d1 isn't a function and doesn't treat it as such? Thanks for any help!
Edited to add: Next part of program code:
(defun next-part-of-program(d1 d2 d3) (if (> d2 b) (put-on-c-list(d1 c-list)) (if (> d2 a) and (< d2 c) (put-on-b-list (d1 b-list)) (put-on-a-list (d1 a-list)))))Note: I've initialized a-list, b-list, and c-list earlier as global variables/lists to be added to later.
Thanks again!
解决方案The last line of get-box should be:
(next-part-of-program new-d1 new-d2 new-d3)))))You should not have parens around the arguments to next-part-of-program
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