[编程交流] LISP代码异常

(defun bind_xrefs ( / CMD)
(setq oldBnType(getvar "bindtype"))
 (setq CMD (getvar "CMDECHO"))
 (setvar "CMDECHO" 0)
 (setvar "bindtype" 0)
 (setq XLIST (xref-status))
 (if XLIST 
   (progn
     (prompt "\nBinding all Xrefs...")
     (foreach n XLIST (rem-xref n))  
     (command "-xref" "b" "*" )
     (prompt "...done")(terpri)
   )  
 )
 (setvar "CMDECHO" CMD)
 (setvar "bindtype" oldBnType)
 (princ)
)
(defun rem-xref ( XL / XNAME XSTATUS )
 (setq XNAME (nth 0 XL))
 (setq XSTATUS (nth 2 XL))
 (if (= XSTATUS "UNLOADED")
   (rem_unload)
 )
 (if (= XSTATUS "UNRESOLVED")
   (rem_unload)
 )
)
(defun xref-status ( / d n f r)
 (while (setq d (tblnext "block" (null d)))
   (cond
     (
       (eq 4 (logand 4 (cdr (assoc 70 d))))
       (setq
         d (entget (tblobjname "block" (cdr (assoc 2 d))))
         n (cdr (assoc 2 d))
         p (cdr (assoc 3 d))
         f (cdr (assoc 70 d))
       )
       (setq r
         (cons
           (list n p
             (cond
               ( (eq 32 (logand 32 f)) "LOADED")
               ( (assoc 71 d) "UNLOADED")
               ( t "UNRESOLVED")
             )
           )
           r
         )
       )
     )
   )
 )
 (reverse r)
)
(defun rem_unload ( / )
 (setq DFILE (findfile "dummy.dwg"))
 (if (not DFILE)
   (prompt "\nCannot find dummy_xref drawing ")
   (progn
     (command "-xref" "p" XNAME DFILE)
     (command "-xref" "r" XNAME)
   )
 )
); end bind_xrefs function

     (load "//long_novell_path/ACAD_Enterprise/VLISP/bind_xrefs.lsp")
     (bind_xrefs)