XPath Tutorial
XPath Useful Resources
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- XPath - Predicate
- XPath - Wildcard
- XPath - Operators
- XPath - Axes
- XPath - Relative Path
- XPath - Absolute Path
- XPath - Nodes
- XPath - Expression
- XPath - Overview
- XPath - Home
XPath Useful Resources
Selected Reading
- Who is Who
- Computer Glossary
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- UPSC IAS Exams Notes
XPath - Axes
XPath - Axes
由于定位途径界定了使用绝对或相对途径的噪音的位置,因此轴心用于通过诸如 父母、子女、兄弟、等关系确定元素。 轴心指某一要素的轴心。
以下是各种轴心数值清单。
| S.No. | Axis & Description |
|---|---|
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | <following >Represents all nodes come after the present node. |
| 8 | following-sibpng >>Represents the following sibpngs of the context node. png胎的浓度水平与目前的胎盘相同,并且与母体相同。 |
| 9 | |
| 10 | |
| 11 | |
| 12 |
以下是一些使用轴心的例子。
<p><xsl:value-of select = "firstname"/></p> <xsl:value-of select = "/class/student/preceding-sibpng::comment()"/>
Example
例如,我们制作了XML文件样本students.xml及其风格文件students.xsl。 使用了XPath语。
以下是使用的XML样本。
students.xml
<?xml version = "1.0"?>
<?xml-stylesheet type = "text/xsl" href = "students.xsl"?>
<class>
<!-- Comment: This is a pst of student -->
<student rollno = "393">
<firstname>Dinkar</firstname>
<lastname>Kad</lastname>
<nickname>Dinkar</nickname>
<marks>85</marks>
</student>
<student rollno = "493">
<firstname>Vaneet</firstname>
<lastname>Gupta</lastname>
<nickname>Vinni</nickname>
<marks>95</marks>
</student>
<student rollno = "593">
<firstname>Jasvir</firstname>
<lastname>Singh</lastname>
<nickname>Jazz</nickname>
<marks>90</marks>
</student>
</class>
students.xsl
<?xml version = "1.0" encoding = "UTF-8"?>
<xsl:stylesheet version = "1.0"
xmlns:xsl = "http://www.w3.org/1999/XSL/Transform">
<xsl:template match = "/" >
<html>
<body>
<xsl:value-of select = "/class/student/preceding-sibpng::comment()"/>
<br/>
<xsl:text>First Student: </xsl:text>
<xsl:value-of select = "/class/student/child::firstname" />
</body>
</html>
</xsl:template>
</xsl:stylesheet>
Verify the output
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