虽然不用属性也可以对所有数据进行建模，但是对于预先知道不会重复(对于每个元素而言)，也没有任何子字段的数据项，使用属性仍是最直观的选择。

Although you could model all your data without attributes, they can be a very intuitive choice for data items which are known in advance to never repeat (per element) nor have any sub-fields.

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mst子命令输出中的数据字段。

Data fields in MST subcommand output.

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用于基准测试的大型文档weblog . xml包含大约8,500个元素，每个元素都含有相同的子字段集合-这是一个面向数据的xml文档的典型布局。

The large weblog.xml document used for benchmark tests contains about 8,500 elements, each having the same collection of child fields — a typical arrangement for a data-oriented XML document.

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