code: def followers(self):
          
          self._make_soup()
          followers_url = self.url + 'followers'
          for x in common_follower(followers_url, self.xsrf, self._session):
              yield x
docs: 获取关注此问题的用户
  
          :return: 关注此问题的用户
          :rtype: Author.Iterable
          :问题: 要注意若执行过程中另外有人关注，可能造成重复获取到某些用户