code: def get_content (&func)
        data = Array.new
        @feed.to_a.each do |single_post|
          begin
            if func.nil?
              data << clean_post_content(single_post, &@message_parser)
            else
              data << clean_post_content(single_post, &func)
            end
          rescue
          end
        end
        data
      end
docs: return feed of current page  infomation , including image