< xsl:choose>tag指定针对节点内容的多个条件测试以及< xsl:otherwise>和< xsl:when>元素.
以下是< xsl:choose> 元素的语法声明.
< xsl:choose> </xsl:choose>
| 出现次数 | 无限 |
|---|---|
父元素 | xsl:attribute ，xsl:comment，xsl:copy，xsl:element，xsl:fallback，xsl:for-each，xsl:if，xsl:message，xsl:otherwise，xsl:param，xsl:processing-instruction，xsl:template，xsl :variable，xsl:when，xsl:with-param，output elements |
子元素 | xsl:否则，xsl:when |
此示例创建一个< student>的表;元素及其属性 rollno 及其子元素< firstname>，< lastname>，< nickname>和< marks>通过迭代每个学生.它会检查并打印成绩详细信息.
students.xml
<?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "students.xsl"?> <class> <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> <h2>Students</h2> <table border = "1"> <tr bgcolor = "#9acd32"> <th>Roll No</th> <th>First Name</th> <th>Last Name</th> <th>Nick Name</th> <th>Marks</th> <th>Grade</th> </tr> <xsl:for-each select = "class/student"> <tr> <td><xsl:value-of select = "@rollno"/></td> <td><xsl:value-of select = "firstname"/></td> <td><xsl:value-of select = "lastname"/></td> <td><xsl:value-of select = "nickname"/></td> <td><xsl:value-of select = "marks"/></td> <td> <xsl:choose> <xsl:when test = "marks > 90"> High </xsl:when> <xsl:when test = "marks > 85"> Medium </xsl:when> <xsl:otherwise> Low </xsl:otherwise> </xsl:choose> </td> </tr> </xsl:for-each> </table> </body> </html> </xsl:template> </xsl:stylesheet>
