code: private String[] getComments(Map<String, Object> map, EnumNode node) {
          // 1. 模板引擎解析
          try {
              StringWriter stringWriter = new StringWriter();
              Template template = templates.get(node);
              if (template != null){
                  template.process(map, stringWriter);
  
                  String comment = stringWriter.toString();
                  stringWriter.close();
  
                  // 需要先清理字符串
                  return comment.replaceFirst("^[\\s\\t\\r\\n]*", "").replaceFirst("[\\s\\t\\r\\n]*$", "").split("\n");
              }
  
          } catch (Exception e) {
              logger.error("freemarker 解析失败！", e);
          }
  
          return null;
      }
docs: 获取评论
  @param map 模板参数
  @param node  节点ID
  @return