尽管看起来像是废话，但无论如何只能对单值数据使用xml属性。
It seems obvious to say, but you should use attributes in XML for single-value data.
在这个窗口里，主题菜单的所有文本都以单元的数据属性值出现。
In this window, the entire text of the Subjects menu is shown as the value of the data property for the cell.
属性的值是属性的数据。
The value of the attribute is its data. Writers of HTML code are familiar with attributes such as.
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