1.row_array():返回查询结果中的第一条数据
$query = $this->db->query("select title from blogs_auth_group where 'is_delete=0'"); $title = $query->row_array();
2.result_array():以数组的形式返回所有的查询结果
$query = $this->db->query("select title from blogs_auth_group where 'is_delete=0'"); $title = $query->result_array();