为此，它将选取列表的第一个元素 — 列表头部 — 来对该元素执行处理，然后再递归式地将列表的其余部分传递给自身。

To do so, it will pick off the first element of the list — the head — to do the processing on that element, and recursively pass the rest of the list to itself again.

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将关联与其他对象分开使得对象的描绘更为清晰，减少了递归式问题，而且更加适合于多到多关系。

Separating associations makes the delineation of objects clearer, reduces problems with recursion, and is more adapted to many-to-many relationships.

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递归式遍历 JSF 组件树。

Traversing the JSF component tree recursively.

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