add common function

Helius

2021-09-25 2221b7618f62d23fbf2000725be39e0d5b970fee

 src/main/resources/mapper/modules/MallShoppingCartMapper.xml

@@ -20,4 +20,9 @@
        select * from mall_shopping_cart
        where member_id=#{memberId} and sku_id=#{skuId}
    </select>

    <delete id="delBySkuId">
        delete from mall_shopping_cart
        where member_id=#{memberId} and sku_id=#{skuId}
    </delete>
</mapper>