组码错误应该如下: (defun c:mm() (setq ss (ssget '((0 . "DIMENSION")))) (setq n 0) (command "undo" "begin") (repeat (sslength ss) (setq ent (ssname ss n)) (setq dxf (entget ent)) (setq bzz (assoc 1 dxf)) (setq bz (cdr bzz)) (setq b (atof bz)) (setq xin (strcat (rtos b 2 0) "~" (rtos (+ b 20) 2 0))) (command "dimedit" "n" xin ent "") (setq n (+ 1 n)) ) (command "undo" "end") )
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