For each item, calculate the total cost for that item using the quantity passed from the shopping cart information and the price obtained from the product catalog information in the database.
对于每个货品，使用从购物车信息传递的数量和从数据库中的产品目录信息获取的价格，计算该货品的总价。
Using the customerXML from Part 1: Listing 6 , loop through each item, calculate the insurance cost, and add it to the item information.
使用 第 1 部分的清单6中的 customerXML，循环遍历每个商品、计算保险费并添加到商品信息中。
Nevertheless, using the blind number theory to describe and deal with such uncertain information can calculate a more real cost while retaining the effective information to the utmost extent.
采用盲数来描述和处理这类不确定信息可以在最大程度的保留有效信息的同时，计算出更真实的成本。
Nevertheless, using the blind number theory to describe and deal with such uncertain information can calculate a more real cost while retaining the effective information to the utmost extent.
采用盲数来描述和处理这类不确定信息可以在最大程度的保留有效信息的同时，计算出更真实的成本。
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