/// <summary>
        /// 所有化妆品列表
        /// </summary>
        /// <returns></returns>
        public ActionResult List(int cosmeticsPerPage = 8, int currentPageNo = 0)
        {
            var service = new CosmeticService();
            //指定页记录集合
            var model = _cosmeticService.GetAllByPage(cosmeticsPerPage, currentPageNo);

            //化妆品的总数量

            int pageCount = _cosmeticService.GetPageCount(cosmeticsPerPage);

            //将实际的页数传入View
            ViewBag.pageCount     = pageCount;
            ViewBag.currentPageNo = currentPageNo;
            return(View(model));
        }