AJAX_USER::upload_init PHP Method

    private function upload_init($num_error)
    {
        switch ($num_error) {
            //返回错误
            case 1:
                $_str_alert = "x030301";
                break;
            case 2:
                $_str_alert = "x030302";
                break;
            case 3:
                $_str_alert = "x030303";
                break;
            case 4:
                $_str_alert = "x030304";
                break;
            case 6:
                $_str_alert = "x030306";
                break;
            case 7:
                $_str_alert = "x030307";
                break;
            default:
                $_str_alert = "ok";
                break;
        }
        return $_str_alert;
    }