It's a part of an e-commerce application, and it displays a catalog and handles a simple shopping cart.
它是一个电子商务应用程序的一部分，该应用程序将显示一个目录，并处理一个简单的购物车。
Listing 1 defines a simple shopping cart Web service that allows the shopper to add, remove, and query items in the cart.
清单1定义了一个简单的购物车Web服务，它允许顾客在购物车中添加、删除和查询商品条目。
Below is a simple XML file listing the contents of a typical shopping cart in an online shopping mall. It has the following elements.
下面是一个简单的XML文件，列示一个在线购物中心的典型购物车中的内容。
In the following section, I will introduce the already mentioned simple example of reading a shopping cart and analyzing it to find patterns that improve performance.
在下面的部分中，我将介绍前面提到过的那个简单实例，它读取一个购物车并进行分析，找出提高性能的模式。
To demonstrate this, I'll use the simple example of a shopping cart that is dynamically updated as items are added to it.
为了演示这一点，我采用一个简单的购物车示例，在向里面添加项目时，它会动态更新。
For this shopping cart, there is a hierarchical Category class and a simple Product class.
对于这个购物车来说，有一个层次Category类和一个简单的product类。
Listing 4 is part of a simple servlet that handles Ajax requests to update the shopping cart.
清单4是处理Ajax请求、更新购物车的简单servlet的一部分。
Using the shopping cart is simple.
购物车的使用很简单。
Built with both designers and merchants in mind, we make it simple to add a shopping cart to your website.
既考虑到设计师和商人的基础，我们能够方便地添加到您的购物车网站。
Built with both designers and merchants in mind, we make it simple to add a shopping cart to your website.
既考虑到设计师和商人的基础，我们能够方便地添加到您的购物车网站。
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