zhongshen_project/addon/memberwithdraw/event/UnInstall.php

<?php
/**
 * Niushop商城系统 - 团队十年电商经验汇集巨献!
 * =========================================================
 * Copy right 2019-2029 杭州牛之云科技有限公司, 保留所有权利。
 * ----------------------------------------------
 * 官方网址: https://www.niushop.com

 * =========================================================
 */

namespace addon\memberwithdraw\event;

/**
 * 应用卸载
 */
class UnInstall
{
    /**
     * 执行卸载
     */
    public function handle()
    {
        return error('', "系统插件不允许删除");
    }
}