if($i['post']['face_img'] == 1 && $i['post']['face_baiduid'] != ''){
            $c = new wcurl('https://tieba.baidu.com/home/main?un='.$i['post']['face_baiduid']);
            $data = $c->get();
            $c->close();
            $i['post']['face_url'] = str_replace('"', '', textMiddle($data,'"userinfo_head"><img src=','/></a>'));
            if(empty($i['post']['face_url'])) msg('获取贴吧头像失败，可能是网络问题，请重试');
        }