lachang/app/api/model/ActivityDiscount.php

<?php

declare (strict_types=1);

namespace app\api\model;

use app\common\model\ActivityDiscount as ActivityDiscountModel;

/**
 * 活动中心 ▸ N件X折
 * Class Ad
 * @package app\common\model
 */
class ActivityDiscount extends ActivityDiscountModel
{
    //添加逻辑
}