code: def update_topic(self, topic_id, title, content):
          
          xml = self.api.req(API_GROUP_UPDATE_TOPIC % topic_id, 'post', data={
              'ck': self.api.ck(),
              'rev_title': title,
              'rev_text': content,
              'rev_submit': '好了，改吧',
          })
          return not xml.url.startswith(API_GROUP_UPDATE_TOPIC % topic_id)
docs: 更新话题
          
          :param topic_id: 话题ID
          :param title: 标题
          :param content: 内容
          :return: bool