def author(self):
        """获取文章作者.

        :return: 文章作者
        :rtype: Author
        """
        from .author import Author

        url = self.soup['author']['profileUrl']
        name = self.soup['author']['name']
        motto = self.soup['author']['bio']
        template = self.soup['author']['avatar']['template']
        photo_id = self.soup['author']['avatar']['id']
        photo_url = template.format(id=photo_id, size='r')
        return Author(url, name, motto, photo_url=photo_url,
                      session=self._session)
获取文章作者.

        :return: 文章作者
        :rtype: Author