到目前为止，您已经看到了处理父节点所拥有的子节点的页面。

So far, you have seen pages that deal with child nodes owned by parent nodes.

youdao

因为使用文件夹对案例文件进行建模，数据模型需要处理文件夹的父文件夹。

Because folders are used to model the case file, the data model needs to handle the folder parent.

youdao

还可以嵌套子流并将内部子流属性提升到父流的高度，允许动态控制子流处理。

You can also nest subflows as well as promote internal subflow properties to the level of the parent flow, allowing dynamic control of subflow processing.

youdao