父节点

• Of 1 . this indicates that the parent node of the currently requested page is displayed
  为1 ，表明要显示当前所请求页的父节点。
• Serially , before the current one , under the parent node ; otherwise , a null reference
  位于父节点之下、当前节点之前的前一个相邻
• Call may have to remove the node being appended from its previous parent
  调用可能必须将正在追加的节点从其原来的父节点下移除。
• The parent axis contains the parent of the context node , if there is one
  Parent轴axis包含上下文节点的父节点,如果有父节点的话
• Object implements its internal collections such that when a parent node retrieves its
  对象实现了它的内部集合，该集合使父节点检索其
• Property specifies whether lines connecting child nodes to parent nodes are displayed
  属性指定是否显示将子节点连接到父节点的连线。
• Nodes have a single parent node , a parent node being a node directly above them
  节点有单个父节点，父节点是与节点相邻的上一级节点。
• Parameter is used to specify how many levels of parent and ancestor nodes to retrieve
  参数用于指定要检索多少个层次的父节点和祖先节点。