public function __construct()
 {
     parent::__construct();
     $this->error_messages[1] = '不存在该医院信息';
 }
 public function __construct()
 {
     parent::__construct();
 }
 public function __construct()
 {
     parent::__construct();
     $this->not_found_error_code = 1;
     $this->set_error_message($this->not_found_error_code, 'Not found');
 }