code: @Override
      public void addFieldComment(Field field, IntrospectedTable introspectedTable, IntrospectedColumn introspectedColumn) {
          Map<String, Object> map = new HashMap<>();
          map.put("mgb", MergeConstants.NEW_ELEMENT_TAG);
          map.put("field", field);
          map.put("introspectedTable", introspectedTable);
          map.put("introspectedColumn", introspectedColumn);
  
          // 添加评论
          addJavaElementComment(field, map, EnumNode.ADD_FIELD_COMMENT);
      }
docs: This method should add a Javadoc comment to the specified field. The field is related to the specified table and
  is used to hold the value of the specified column.
  <p>
  
  <b>Important:</b> This method should add a the nonstandard JavaDoc tag "@mbg.generated" to the comment. Without
  this tag, the Eclipse based Java merge feature will fail.
  
  @param field
  the field
  @param introspectedTable
  the introspected table
  @param introspectedColumn
  the introspected column