商品SKU

http://www.qiutianaimeili.com/html/page/2017/12/dhx8xttfutm.html

http://geekli.cn/demo/blog/goods_sku_select.html

https://blog.csdn.net/csdn924618338/article/details/51455595

https://juejin.im/post/5eef2fcee51d4574113a0203