The class tag maps the order object to the ORDERS table and has a number of sub tags that describe its properties, the ID and the order name, and a one-to-many relationship to models.Item.
class标签把ORDER对象映射到ORDERS表,还有许多子标签用于描述其属性、ID订单名称,以及同models . Item的一对多关系。
In the case of the tag, it may contain either character data or a sub-element or a sub-element — or any combination of each of these.
就标记而言,它既可以包含字符数据,也可以包含一个子元素或一个子元素—或这几个的任意组合。
Using a tag-on can be an inexpensive way to launch a sub brand, but it can also be risky.
使用标签上可以是一种廉价的方式来启动一个子品牌,但它也可以是有风险的。
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