文字从指定位置断开两部分

Lisphk · 发表于 2021-1-18 12:55:01

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(defun c:BreakTextInplace (/ ActDoc Sel Obj Str
Rot Pt tempText ll ur
cnt DistList Dist PtDist Oldll
*error* Newll tempList StrList InsPt
AliPt
)
; Breaks a text object selected at the character it is selected into two text objects, with them being
; in the same location as they were when they were one text object. Only works with left and right
; justifications, and all that go along with them (top, bottom and center).
; Sub's - 'FontLetterWidth 'DistPtsAng 'RemoveSpace 'IntersOfPoints
(defun *error* (msg)
(vla-EndUndoMark ActDoc)
(prompt (strcat "\n Error--> " msg))
)
;---------------------------------------------------------------------
(setq ActDoc (vla-get-ActiveDocument (vlax-get-Acad-Object)))
(vla-EndUndoMark ActDoc)
(vla-StartUndoMark ActDoc)
(if
(and
(setq Sel
(entsel
"\n Select text object to break (in the middle of the character to break at): "
)
)
(setq Obj (vlax-ename->vla-object (car Sel)))
(= (vla-get-ObjectName Obj) "AcDbText")
(setq Str (vla-get-TextString Obj))
(setq Rot (vla-get-Rotation Obj))
(setq Pt (trans (cadr Sel) 1 0))
(vl-position (vla-get-Alignment Obj) '(0 2 6 8 9 11 12 14))
)
(progn
(vla-GetBoundingBox Obj 'll 'ur)
(setq Oldll (safearray-value ll))
(setq AliPt
(IntersOfPoints
Oldll
(vlax-get
Obj
(if (equal (vla-get-Alignment Obj) 0)
'InsertionPoint
'TextAlignmentPoint
)
)
Rot
)
)
(setq tempText (vlax-invoke Obj 'Copy))
(vla-put-Rotation tempText 0.0)
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq cnt 0)
(setq Newll Oldll)
(setq tempList (FontLetterWidth ActDoc Obj))
(setq DistList (car tempList))
(setq Dist 0.0)
(setq PtDist (DistPtsAng Oldll Pt Rot))
(while (or (< Dist PtDist) (> cnt (strlen Str)))
(setq Dist (+ Dist (nth cnt DistList)))
(if (< Dist PtDist)
(progn
(setq Newll (polar Newll Rot (nth cnt DistList)))
(setq cnt (1+ cnt))
)
)
)
(setq StrList (cadr tempList))
(foreach pair StrList
(if
(and
(<= (car pair) cnt)
(not (or (= (cdr pair) "%%U") (= (cdr pair) "%%O")))
)
(setq cnt (+ cnt 2))
)
)
(vla-put-TextString Obj (RemoveSpace (substr Str 1 cnt)))
(setq tempStr (vla-get-TextString Obj))
(setq tempStr2 (strcase (substr tempStr (- (strlen tempStr) 2))))
(if (or (= tempStr2 "%%U") (= tempStr2 "%%O"))
(vla-put-TextString
Obj
(RemoveSpace (substr tempStr 1 (- (strlen tempStr) 3)))
)
)
(vla-GetBoundingBox Obj 'll 'ur)
(setq ll (safearray-value ll))
(setq InsPt
(vlax-get
Obj
(if (equal (vla-get-Alignment tempText) 0)
'InsertionPoint
'TextAlignmentPoint
)
)
)
(vlax-invoke Obj 'Move (IntersOfPoints ll InsPt Rot) AliPt)
(vla-put-TextString
tempText
(strcat
(if (and StrList (> (rem (length StrList) 2) 0))
(cdar StrList)
""
)
(RemoveSpace (substr Str (1+ cnt)))
)
)
(vla-put-Rotation tempText Rot)
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq InsPt
(vlax-get
tempText
(if (equal (vla-get-Alignment tempText) 0)
'InsertionPoint
'TextAlignmentPoint
)
)
)
(vlax-invoke
tempText
'Move
(IntersOfPoints ll InsPt Rot)
(IntersOfPoints Newll AliPt Rot)
)
(vla-Highlight tempText 1)
)
(cond
((not Sel)
(prompt "\n No object selected.")
)
((not Str)
(prompt "\n Object selected was not a plain text object.")
)
(T
(prompt
"\n Text object selected does not have an alignment that would work."
)
)
)
)
(vla-EndUndoMark ActDoc)
(princ)
)
;-------------------------------------------------------------------------------
(defun DistPtsAng (Pt1 Pt2 Ang / Pt1a Pt2a Pt3)
(setq Pt1a (polar Pt1 Ang 0.001))
(setq Pt2a (polar Pt2 (+ 1.5708 Ang) 0.001))
(setq Pt3 (inters Pt1 Pt1a Pt2 Pt2a nil))
(distance Pt1 Pt3)
)
;-------------------------------------------------------------------------------
(defun IntersOfPoints (Xval Yval Ang / Pt1 Pt2)
(setq Pt1 (polar Yval Ang 0.001))
(setq Pt2 (polar Xval (+ 1.5708 Ang) 0.001))
(inters Xval Pt2 Yval Pt1 nil)
)
;-------------------------------------------------------------------------------
(defun FontLetterWidth (Doc TextObj / MdSpc
StyCol Sty FontName DictCol
DictObj cnt CurLtr tempText
ll ur Dist FontWidthList
WidthList StyName String TextWd
TextHt StyDictObj tempStrList
tempList tempStr
)
; Returns a list of distances for the text string of the object supplied. The distances are that of each
; letter in the string starting from the lower left bounding box point of the text, when the text is rotated
; to 0.0 degrees.
; Idea from 'SomeCallMeDave' @ theswamp. Thanks again.
(setq StyName (vla-get-StyleName TextObj))
(setq String (vla-get-TextString TextObj))
(setq TextWd (vla-get-ScaleFactor TextObj))
(setq TextHt (vla-get-Height TextObj))
(setq TextLen (strlen String))
(setq cnt -1)
(while (setq cnt (vl-string-search "%%" String (setq cnt (1+ cnt))))
(setq tempStrList
(cons (cons (1+ cnt)
(setq
tempStr (strcase (substr String (1+ cnt) 3))
)
)
tempStrList
)
)
)
(setq MdSpc (vla-get-ModelSpace Doc))
(setq StyCol (vla-get-TextStyles Doc))
(setq Sty (vla-Item StyCol StyName))
(setq FontName
(if (findfile (vla-get-fontFile Sty))
(vl-filename-base (vla-get-fontFile Sty))
(vl-filename-base (getvar "fontalt"))
)
)
;(setq DictCol (vla-get-Dictionaries Doc))
;(if (vl-catch-all-error-p (setq DictObj (vl-catch-all-apply 'vla-Item (list DictCol "MyFontWidthDict"))))
; (setq DictObj (vla-Add DictCol "MyFontWidthDict"))
;)
;(if (vl-catch-all-error-p (setq StyDictObj (vl-catch-all-apply 'vla-Item (list DictObj StyName))))
; (setq StyDictObj (vla-Add DictObj StyName))
;)
(setq cnt 1)
(while (<= cnt TextLen)
(if (setq tempList (assoc cnt tempStrList))
(progn
(setq CurLtr (cdr tempList))
(setq cnt (+ cnt 2))
)
(setq CurLtr (substr String cnt 1))
)
(if (not (assoc CurLtr FontWidthList))
(progn
(cond
((= CurLtr " ")
(setq tempText (vlax-invoke
MdSpc 'AddText "AA" '(0.0 0.0 0.0) 1.0)
)
(vla-put-Height tempText 1.0)
(vla-put-ScaleFactor tempText 1.0)
(vla-put-StyleName tempText StyName)
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq Dist (distance (cons (car ll) (cdr ur)) ur))
(vla-put-TextString tempText (strcat "A" CurLtr "A"))
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq Dist
(* TextWd
(* TextHt
(- (distance (cons (car ll) (cdr ur)) ur) Dist)
)
)
)
(setq FontWidthList (cons (cons CurLtr Dist) FontWidthList))
(vla-Delete tempText)
)
((and (equal cnt 3) (or (= CurLtr "%%U") (= CurLtr "%%O")))
(setq tempText (vlax-invoke
MdSpc 'AddText "A" '(0.0 0.0 0.0) 1.0)
)
(vla-put-Height tempText 1.0)
(vla-put-ScaleFactor tempText 1.0)
(vla-put-StyleName tempText StyName)
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq tempPt (cons (car ll) (cdr ur)))
(vla-put-TextString tempText (strcat CurLtr "A"))
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq Dist (* TextWd
(* TextHt
(distance (cons (car ll) (cdr ur)) tempPt)
)
)
)
(setq FontWidthList (cons (cons CurLtr Dist) FontWidthList))
(vla-Delete tempText)
)
(T
(setq tempText (vlax-invoke
MdSpc 'AddText CurLtr '(0.0 0.0 0.0) 1.0)
)
(vla-put-Height tempText 1.0)
(vla-put-ScaleFactor tempText 1.0)
(vla-put-StyleName tempText StyName)
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq Dist (distance (cons (car ll) (cdr ur)) ur))
(vla-put-TextString tempText (strcat CurLtr CurLtr))
(vla-GetBoundingBox tempText 'll 'ur)
(setq ll (safearray-value ll))
(setq ur (safearray-value ur))
(setq Dist
(* TextWd
(* TextHt
(- (distance (cons (car ll) (cdr ur)) ur) Dist)
)
)
)
(setq FontWidthList (cons (cons CurLtr Dist) FontWidthList))
(vla-Delete tempText)
)
)
)
)
(if (and (not (equal cnt 3))
(or (= CurLtr "%%U") (= CurLtr "%%O"))
)
(repeat 3
(setq WidthList (cons 0.0 WidthList))
)
(if (or (= CurLtr "%%U") (= CurLtr "%%O"))
(repeat 3
(setq
WidthList (cons (/ (cdr (assoc CurLtr FontWidthList)) 3.0)
WidthList
)
)
)
(setq WidthList
(cons (cdr (assoc CurLtr FontWidthList)) WidthList)
)
)
)
(setq cnt (1+ cnt))
)
(list (reverse WidthList) tempStrList)
)
;--------------------------------------------------------------------------
(defun RemoveSpace (String / cnt)
; Remove spaces from begining and end of string
(While (= (substr String 1 1) " ")
(setq String (substr String 2 (strlen String)))
)
(setq cnt (strlen String))
(while (= (substr String cnt 1) " ")
(setq cnt (1- cnt))
)
(substr String 1 cnt)
)

(defun c:BreakTextInplace (/            ActDoc   Sel      Obj      Str 
                           Rot            Pt             tempText ll       ur 
                           cnt            DistList Dist     PtDist   Oldll 
                           *error*  Newll    tempList StrList  InsPt 
                           AliPt 
                          ) 
 
                                        ; Breaks a text object selected at the character it is selected into two text objects, with them being 
                                        ;  in the same location as they were when they were one text object.  Only works with left and right 
                                        ;  justifications, and all that go along with them (top, bottom and center). 
                                        ; Sub's - 'FontLetterWidth 'DistPtsAng 'RemoveSpace 'IntersOfPoints 
 
  (defun *error* (msg) 
    (vla-EndUndoMark ActDoc) 
    (prompt (strcat "\n Error--> " msg)) 
  ) 
                                        ;--------------------------------------------------------------------- 
  (setq ActDoc (vla-get-ActiveDocument (vlax-get-Acad-Object))) 
  (vla-EndUndoMark ActDoc) 
  (vla-StartUndoMark ActDoc) 
  (if 
    (and 
      (setq Sel 
             (entsel 
               "\n Select text object to break (in the middle of the character to break at): " 
             ) 
      ) 
      (setq Obj (vlax-ename->vla-object (car Sel))) 
      (= (vla-get-ObjectName Obj) "AcDbText") 
      (setq Str (vla-get-TextString Obj)) 
      (setq Rot (vla-get-Rotation Obj)) 
      (setq Pt (trans (cadr Sel) 1 0)) 
      (vl-position (vla-get-Alignment Obj) '(0 2 6 8 9 11 12 14)) 
    ) 
     (progn 
       (vla-GetBoundingBox Obj 'll 'ur) 
       (setq Oldll (safearray-value ll)) 
       (setq AliPt 
              (IntersOfPoints 
                Oldll 
                (vlax-get 
                  Obj 
                  (if (equal (vla-get-Alignment Obj) 0) 
                    'InsertionPoint 
                    'TextAlignmentPoint 
                  ) 
                ) 
                Rot 
              ) 
       ) 
       (setq tempText (vlax-invoke Obj 'Copy)) 
       (vla-put-Rotation tempText 0.0) 
       (vla-GetBoundingBox tempText 'll 'ur) 
       (setq ll (safearray-value ll)) 
       (setq cnt 0) 
       (setq Newll Oldll) 
       (setq tempList (FontLetterWidth ActDoc Obj)) 
       (setq DistList (car tempList)) 
       (setq Dist 0.0) 
       (setq PtDist (DistPtsAng Oldll Pt Rot)) 
       (while (or (< Dist PtDist) (> cnt (strlen Str))) 
         (setq Dist (+ Dist (nth cnt DistList))) 
         (if (< Dist PtDist) 
           (progn 
             (setq Newll (polar Newll Rot (nth cnt DistList))) 
             (setq cnt (1+ cnt)) 
           ) 
         ) 
       ) 
       (setq StrList (cadr tempList)) 
       (foreach        pair StrList 
         (if 
           (and 
             (<= (car pair) cnt) 
             (not (or (= (cdr pair) "%%U") (= (cdr pair) "%%O"))) 
           ) 
            (setq cnt (+ cnt 2)) 
         ) 
       ) 
       (vla-put-TextString Obj (RemoveSpace (substr Str 1 cnt))) 
       (setq tempStr (vla-get-TextString Obj)) 
       (setq tempStr2 (strcase (substr tempStr (- (strlen tempStr) 2)))) 
       (if (or (= tempStr2 "%%U") (= tempStr2 "%%O")) 
         (vla-put-TextString 
           Obj 
           (RemoveSpace (substr tempStr 1 (- (strlen tempStr) 3))) 
         ) 
       ) 
       (vla-GetBoundingBox Obj 'll 'ur) 
       (setq ll (safearray-value ll)) 
       (setq InsPt 
              (vlax-get 
                Obj 
                (if (equal (vla-get-Alignment tempText) 0) 
                  'InsertionPoint 
                  'TextAlignmentPoint 
                ) 
              ) 
       ) 
       (vlax-invoke Obj 'Move (IntersOfPoints ll InsPt Rot) AliPt) 
       (vla-put-TextString 
         tempText 
         (strcat 
           (if (and StrList (> (rem (length StrList) 2) 0)) 
             (cdar StrList) 
             "" 
           ) 
           (RemoveSpace (substr Str (1+ cnt))) 
         ) 
       ) 
       (vla-put-Rotation tempText Rot) 
       (vla-GetBoundingBox tempText 'll 'ur) 
       (setq ll (safearray-value ll)) 
       (setq InsPt 
              (vlax-get 
                tempText 
                (if (equal (vla-get-Alignment tempText) 0) 
                  'InsertionPoint 
                  'TextAlignmentPoint 
                ) 
              ) 
       ) 
       (vlax-invoke 
         tempText 
         'Move 
         (IntersOfPoints ll InsPt Rot) 
         (IntersOfPoints Newll AliPt Rot) 
       ) 
       (vla-Highlight tempText 1) 
     ) 
     (cond 
       ((not Sel) 
        (prompt "\n No object selected.") 
       ) 
       ((not Str) 
        (prompt "\n Object selected was not a plain text object.") 
       ) 
       (T 
        (prompt 
          "\n Text object selected does not have an alignment that would work." 
        ) 
       ) 
     ) 
  ) 
  (vla-EndUndoMark ActDoc) 
  (princ) 
) 
                                        ;------------------------------------------------------------------------------- 
(defun DistPtsAng (Pt1 Pt2 Ang / Pt1a Pt2a Pt3) 
 
  (setq Pt1a (polar Pt1 Ang 0.001)) 
  (setq Pt2a (polar Pt2 (+ 1.5708 Ang) 0.001)) 
  (setq Pt3 (inters Pt1 Pt1a Pt2 Pt2a nil)) 
  (distance Pt1 Pt3) 
) 
                                        ;------------------------------------------------------------------------------- 
(defun IntersOfPoints (Xval Yval Ang / Pt1 Pt2) 
 
  (setq Pt1 (polar Yval Ang 0.001)) 
  (setq Pt2 (polar Xval (+ 1.5708 Ang) 0.001)) 
  (inters Xval Pt2 Yval Pt1 nil) 
) 
                                        ;------------------------------------------------------------------------------- 
(defun FontLetterWidth (Doc           TextObj    /                 MdSpc 
                        StyCol           Sty              FontName         DictCol 
                        DictObj           cnt              CurLtr         tempText 
                        ll           ur              Dist         FontWidthList 
                        WidthList  StyName    String         TextWd 
                        TextHt           StyDictObj tempStrList 
                        tempList   tempStr 
                       ) 
                                        ; Returns a list of distances for the text string of the object supplied.  The distances are that of each 
                                        ;  letter in the string starting from the lower left bounding box point of the text, when the text is rotated 
                                        ;  to 0.0 degrees. 
                                        ; Idea from 'SomeCallMeDave' @ theswamp.  Thanks again. 
 
  (setq StyName (vla-get-StyleName TextObj)) 
  (setq String (vla-get-TextString TextObj)) 
  (setq TextWd (vla-get-ScaleFactor TextObj)) 
  (setq TextHt (vla-get-Height TextObj)) 
  (setq TextLen (strlen String)) 
  (setq cnt -1) 
  (while (setq cnt (vl-string-search "%%" String (setq cnt (1+ cnt)))) 
    (setq tempStrList 
           (cons (cons (1+ cnt) 
                       (setq 
                         tempStr (strcase (substr String (1+ cnt) 3)) 
                       ) 
                 ) 
                 tempStrList 
           ) 
    ) 
  ) 
  (setq MdSpc (vla-get-ModelSpace Doc)) 
  (setq StyCol (vla-get-TextStyles Doc)) 
  (setq Sty (vla-Item StyCol StyName)) 
  (setq        FontName 
         (if (findfile (vla-get-fontFile Sty)) 
           (vl-filename-base (vla-get-fontFile Sty)) 
           (vl-filename-base (getvar "fontalt")) 
         ) 
  ) 
                                        ;(setq DictCol (vla-get-Dictionaries Doc)) 
                                        ;(if (vl-catch-all-error-p (setq DictObj (vl-catch-all-apply 'vla-Item (list DictCol "MyFontWidthDict")))) 
                                        ; (setq DictObj (vla-Add DictCol "MyFontWidthDict")) 
                                        ;) 
                                        ;(if (vl-catch-all-error-p (setq StyDictObj (vl-catch-all-apply 'vla-Item (list DictObj StyName)))) 
                                        ; (setq StyDictObj (vla-Add DictObj StyName)) 
                                        ;) 
  (setq cnt 1) 
  (while (<= cnt TextLen) 
    (if        (setq tempList (assoc cnt tempStrList)) 
      (progn 
        (setq CurLtr (cdr tempList)) 
        (setq cnt (+ cnt 2)) 
      ) 
      (setq CurLtr (substr String cnt 1)) 
    ) 
    (if        (not (assoc CurLtr FontWidthList)) 
      (progn 
        (cond 
          ((= CurLtr " ") 
           (setq tempText (vlax-invoke 
                            MdSpc 'AddText "AA"        '(0.0 0.0 0.0) 1.0) 
           ) 
           (vla-put-Height tempText 1.0) 
           (vla-put-ScaleFactor tempText 1.0) 
           (vla-put-StyleName tempText StyName) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq Dist (distance (cons (car ll) (cdr ur)) ur)) 
           (vla-put-TextString tempText (strcat "A" CurLtr "A")) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq Dist 
                  (* TextWd 
                     (*        TextHt 
                        (- (distance (cons (car ll) (cdr ur)) ur) Dist) 
                     ) 
                  ) 
           ) 
           (setq FontWidthList (cons (cons CurLtr Dist) FontWidthList)) 
           (vla-Delete tempText) 
          ) 
          ((and (equal cnt 3) (or (= CurLtr "%%U") (= CurLtr "%%O"))) 
           (setq tempText (vlax-invoke 
                            MdSpc 'AddText "A" '(0.0 0.0 0.0) 1.0) 
           ) 
           (vla-put-Height tempText 1.0) 
           (vla-put-ScaleFactor tempText 1.0) 
           (vla-put-StyleName tempText StyName) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq tempPt (cons (car ll) (cdr ur))) 
           (vla-put-TextString tempText (strcat CurLtr "A")) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq Dist (* TextWd 
                         (* TextHt 
                            (distance (cons (car ll) (cdr ur)) tempPt) 
                         ) 
                      ) 
           ) 
           (setq FontWidthList (cons (cons CurLtr Dist) FontWidthList)) 
           (vla-Delete tempText) 
          ) 
          (T 
           (setq tempText (vlax-invoke 
                            MdSpc 'AddText CurLtr '(0.0 0.0 0.0) 1.0) 
           ) 
           (vla-put-Height tempText 1.0) 
           (vla-put-ScaleFactor tempText 1.0) 
           (vla-put-StyleName tempText StyName) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq Dist (distance (cons (car ll) (cdr ur)) ur)) 
           (vla-put-TextString tempText (strcat CurLtr CurLtr)) 
           (vla-GetBoundingBox tempText 'll 'ur) 
           (setq ll (safearray-value ll)) 
           (setq ur (safearray-value ur)) 
           (setq Dist 
                  (* TextWd 
                     (*        TextHt 
                        (- (distance (cons (car ll) (cdr ur)) ur) Dist) 
                     ) 
                  ) 
           ) 
           (setq FontWidthList (cons (cons CurLtr Dist) FontWidthList)) 
           (vla-Delete tempText) 
          ) 
        ) 
      ) 
    ) 
    (if        (and (not (equal cnt 3)) 
             (or (= CurLtr "%%U") (= CurLtr "%%O")) 
        ) 
      (repeat 3 
        (setq WidthList (cons 0.0 WidthList)) 
      ) 
      (if (or (= CurLtr "%%U") (= CurLtr "%%O")) 
        (repeat        3 
          (setq 
            WidthList (cons (/ (cdr (assoc CurLtr FontWidthList)) 3.0) 
                            WidthList 
                      ) 
          ) 
        ) 
        (setq WidthList 
               (cons (cdr (assoc CurLtr FontWidthList)) WidthList) 
        ) 
      ) 
    ) 
    (setq cnt (1+ cnt)) 
  ) 
  (list (reverse WidthList) tempStrList) 
) 
                                        ;-------------------------------------------------------------------------- 
(defun RemoveSpace (String / cnt) 
                                        ; Remove spaces from begining and end of string 
 
  (While (= (substr String 1 1) " ") 
    (setq String (substr String 2 (strlen String))) 
  ) 
  (setq cnt (strlen String)) 
  (while (= (substr String cnt 1) " ") 
    (setq cnt (1- cnt)) 
  ) 
  (substr String 1 cnt) 
)

kmliro_2017 · 发表于 2021-1-18 17:25:10

谢谢分享！！！！！

创佳 · 发表于 2021-4-5 13:09:03

可以拿来做排版的子函数

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