OCAF——数据结构机制

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Data Structure (The Tree)

1. The OCAF Data Framework is the Open CASCADE Technology realization of the reference-key model in a tree structure. It offers a single environment where data from different application components can be handled. This allows exchanging and modifying data simply, and consistently, with a maximum level of information and stable semantics.

2. The building blocks of this approach are:

   1. The tag

   2. The label

   3. The attribute

   4. 什么是Tag、Label和Attribute？

      1. Tag、label和attribute都是用来描述对象的元数据，但它们具有不同的作用和用途。

      2. Tag是OCAF中的基本元素，是用来标识对象的一组整数值，它可以用来唯一地标识一个对象或者对