ecshop文章列表怎么改为显示内容提要

$sql = 'SELECT article_id, title,content, author, add_time, file_url, open_type' .
' FROM ' .$GLOBALS['ecs']->table('article') .
" WHERE is_open = 1 AND " . $cat_str .
' ORDER BY article_type DESC, article_id DESC';

$arr[$article_id]['add_time'] = date($GLOBALS['_CFG']['date_format'], $row['add_time']);

$arr[$article_id]['content'] = $row['content'];
article_cat.dwt