迭代通过每家花店，并报告每种花卉的数量、名称、花店名称和价格。
Iterating through the stores, it reports the quantity, name, store name, and price for each plant. The output looks like Listing 5.
当事件处理器发现price - quote元素时，它从属性列表中抽取供应商名称和价格。
When it finds a price-quote element, the event handler extracts the vendor name and the price from the list of attributes.
它对产品数组进行了循环，并显示名称和价格。“加入购物车”按钮只在用户登录时才是可见的。
This iterates over the products array and displays the name and price. The "Add to Order" button is visible only when the user is logged in.
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