code: def author(self):
          
          from .author import Author
  
          author = self.soup.find('div', class_='zm-item-answer-author-info')
          url, name, motto, photo = parser_author_from_tag(author)
          if name == '匿名用户':
              return ANONYMOUS
          else:
              return Author(url, name, motto, photo_url=photo,
                            session=self._session)
docs: 获取答案作者.
  
          :return: 答案作者
          :rtype: Author