def unfollow_tag(id): '取消关注话题' if current_user.is_following_tag(id): current_user.unfollow_tag(id) return jsonify({}) #返回空的json
def follow_tag(id): '关注话题' if not current_user.is_following_tag(id): current_user.follow_tag(id) return jsonify({}) #返回空的json