嵌套节点

🌐 Nested Nodes

另一个关键特性是嵌套节点（甚至嵌套流）。

🌐 Another key feature is nested nodes (or even nested flows).

你可以定义一个节点的父节点，这些父节点随后会嵌套在该节点内部。你还可以定义节点的边界，例如节点是否可以被拖动到父节点之外，或者是否被限制在父节点内，甚至可以让 Vue Flow 扩展节点的区域以容纳它的所有子节点。

🌐 You can define parents of a node, which are then nested inside that node. You can also define the boundaries of a node, i.e. if the node can be dragged outside it's parent or if it's contained to the parent or even let Vue Flow extend the area of a node to fit all it's children.