CADlisp程序

超级详细(defun*error*(st)(if(and(/=st"Functioncancelled")(/=st"quit/exitabort"))(princ(strcat"错误:"st)))(setq*error*old_err)(princ))(defunsort(l/ltltemvmaxvminl1l2l3lt0ltem0ltem1l30vmax0vmin0l10l20)(setqltem(mapcar'carl)