Imagine the formal module to be a tree-like data structure.
将规范模块想象成树形结构的数据。
Taking SQL Server as the platform, the depth-sorting algorithm for the double identity number tree-like data, realized by recursion, is explained in detail.
阐述了树形结构的数据在数据库中的两种存储方式单编号和双编号法，以及树形数据的排序算法。
It also provides a flexible, tree-like structure to accommodate the need for various kinds of structured locale data.
它还提供了一种灵活的类树结构来满足各种结构化的语言环境数据的要求。
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