jacob操作word,替换书签内容的同时书签也被删除了，有办法保留书签或者插入新的书签吗？
modifyDocByBookmark()方法用于查找doc文档中名为LB_0的书签
并把该书签中的文本内容替换成新内容
请问在替换书签体中的内容时，能否保留LB_0书签，令它不被删除
或者是在新插入的文本内容上加上新的书签？
import   com.jacob.activeX.ActiveXComponent;
import   com.jacob.com.Dispatch;
import   com.jacob.com.Variant;

public   static   void   modifyDocByBookmark()   {
ActiveXComponent   app   =   new   ActiveXComponent( "Word.Application ");
String   inFile   =   "D:\\ligy\\my   ebooks\\j4office\\testfile\\wordtemplet_src.doc ";
String   bookMarkKey   =   "LB_0 ";
try   {
app.setProperty( "Visible ",   new   Variant(true));
Dispatch   documents   =   app.getProperty( "Documents ").toDispatch();
Dispatch   doc   =   Dispatch.call(documents,   "Open ",   inFile).toDispatch();
Dispatch   activeDocument   =   app.getProperty( "ActiveDocument ").toDispatch();
Dispatch   bookMarks   =   app.call(activeDocument,   "Bookmarks ").toDispatch();
boolean   bookMarkExist1   =   Dispatch.call(bookMarks,   "Exists ",bookMarkKey).toBoolean();
if   (bookMarkExist1   ==   true)   {
System.out.println( "已找到书签 "+bookMarkKey);
Dispatch   rangeItem   =   Dispatch.call(bookMarks,   "Item ",bookMarkKey).toDispatch();
Dispatch   range   =   Dispatch.call(rangeItem,   "Range ").toDispatch();
String   bookMarkValue   =   Dispatch.get(range,   "Text ").toString();
System.out.println( "从书签 "+bookMarkKey+ "中抓取的内容如下: "+bookMarkValue);
bookMarkValue   =   "书签 "+bookMarkKey+ "中的段落内容已经被删除啦，现在你看到的是替换过来的内容哦，嘿嘿！ ";
if   (bookMarkValue   !=   null)   {
Dispatch.put(range,   "Text ",   new   Variant(bookMarkValue));
//Dispatch.put(range, "Bookmarks ", "LB_001 ");
}
}   else   {
System.out.println( "指定的书签不存在 ");
}
      Dispatch.call(doc,   "Save ");
      Dispatch.call(doc,   "Close ",   new   Variant(true));
      doc   =   null;
      if   (app   !=   null)   {
      Dispatch.call(app,   "Quit ");
      app   =   null;
    }
      documents   =   null;
}   catch   (Exception   e)   {
e.printStackTrace();
}  
}

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有人知道吗？谢谢！