/**
* 根据组获取短信
* @return array()
*/
public function lists_by_group()
{
$data = $this->get_data();
$start = (int) $this->input->get('start', 0);
$size = (int) $this->input->get('size', 50);
$result = array();
$result = $this->model->lists_by_group($this->user_id, $start, $size);
$this->send_response(200, $result);
}
