The NodeList keeps itself up-to-date. If an element is deleted or added, in the node list or the XML document, the list is automatically updated.
The NodeList keeps itself up-to-date. If an element is deleted or added, in the node list or the XML document, the list is automatically updated.
节点列表可保持其自身的更新。如果节点列表或XML文档中的某个元素被删除或添加，列表也会被自动更新。