qimall/addons/WriteOff/common/global_func/Currency.php

<?php

namespace addons\WriteOff\common\global_func;

use Yii;

class Currency
{
    public static function getExtensionCurrency($params): array
    {
        $data = [['code' => 'write_off', 'title' => '核销码', 'route' => '/plugins3/WWriteOff/check_code']];
        return $data;
    }
}