Note that adding the item to the cart only after filling it with values keeps the cart consistent at all times.
请注意，向条目填充值后再将该条目添加到购物车中，能够使购物车总是保持一致。
2
Note the shopping cart information is passed into the query as an XML string.
注意，购物车信息以xml字符串的形式传递到查询中。
3
Note that the SessionData class defined in Listing 3 is a user-defined data structure to store various shopping cart information (Click the code icon at the top or bottom of this article).