It does this by defining XML constructs such as an id attribute and a ref attribute to serialize a graph structure into XML so that the recipient can create the same graph on the other end.

其方式为定义诸如id属性和ref属性之类的XML构造来将图结构序列化为XML，从而使接收方可以在另一端创建相同的图。

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Finally, there are some minor syntactical differences that need to be changed; for example, the ref element inside a property element has an id attribute instead of the bean attribute used in Spring.

最后，需要更改一些小的语法差异；例如，一个属性元素内的ref元素有一个id属性，而非spring中使用的bean属性。

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When you expand the XForms (input) section, you see that the ref USES an XPath expression to point to the id element in the data instance (see figure 8).

当展开XForms(输入)部分时，将看到ref使用XPath表达式指向数据实例中的id元素(参见图8)。

youdao

When you expand the XForms (input) section, you see that the ref USES an XPath expression to point to the id element in the data instance (see figure 8).

当展开XForms(输入)部分时，将看到ref使用XPath表达式指向数据实例中的id元素(参见图8)。

youdao