If the item objects returned from reading the shopping cart implement the interfaces required by the catalog, lead times, and prices methods, no copying at all is necessary in the process.
如果读取购物车所返回的条目对象实现了分类、交货期和价格方法所要求的接口,则该过程不需要进行任何复制。
If the item objects returned from reading the shopping cart implement the interfaces required by the catalog, lead times, and prices methods, no copying at all is necessary in the process.
如果读取购物车所返回的条目对象实现了分类、交货期和价格方法所要求的接口,则该过程不需要进行任何复制。
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