async def delpromote_discount(ns):
    """移除促销产品折扣"""
    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        ns['del_flg'] = '1'
        try:
            await sor.U('promote_discount', ns)
            return {'status': True, 'msg': '完成'}
        except:
            return {'status': False, 'msg': '错误'}

ret = await delpromote_discount(params_kw)
return ret