无论所储存的资料型别为何，将项目加入集合或是从集合移除项目的作业，基本上都会以相同的方式执行。

Operations such as adding and removing items from the collection are performed in basically the same way regardless of the type of data being stored.

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说明如何透过资料服务以非同步方式储存变更。

Shows how to save changes in entity data back through a data service.

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此二演算法主要以树状结构储存路径资料再利用走访树状结构的方式加以探勘。

These algorithms will build the tree structure to store the paths sequence data and mine the path by traversing the tree.

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