📌  相关文章
📜  XPath轴

📅  最后修改于: 2020-12-26 06:58:13             🧑  作者: Mango

XPath轴

众所周知，路径使用绝对或相对路径定义节点的位置。以相同的方式，XPath轴用于通过其关系(如父，子，同级等)来标识元素。轴是指元素相对于元素所在的轴。

各种Axis值的列表：

Index Axis Description
1) ancestor It specifies the ancestors of the current nodes which include the parents up to the root node.
2) ancestor-or-self It specifies the current node and its ancestors.
3) attribute It specifies the attributes of the current node.
4) child It specifies the children of the current node.
5) descendant It specifies the descendants of the current node i.e. the node’s children up to the leaf node(no more children).
6) descendant-or-self It specifies the current node and it’s descendants.
7) following It specifies all nodes that come after the current node.
8) following-sibling It specifies the following siblings of the context node. Siblings are at the same level as the current node and share it’s parent.
9) namespace It specifies the namespace of the current node.
10) parent It specifies the parent of the current node.
11) preceding It specifies all nodes that come before the current node (i.e. before it’s opening tag).
12) self It specifies the current node.

XPath轴示例

这里的名字与XML文档中名为employee.xml的员工节点有关。

让我们创建一个使用XPath表达式的XML文档“ employee.xml”及其样式表文档“ employee.xsl”。

Employee.xml




   
      Abhiram
      Kushwaha
      Manoj
      15000
   
   
      Akash
      Singh
      Bunty
      25000
   
    
      Brijesh
      Kaushik
      Ballu
      20000
   
    
      Zoya
      Mansoori
      Sonam
      30000

员工.xsl



   xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">     
   
      
           
            
            

            First Employee:

输出：