XPath布尔运算符 _布尔运算符

XPath表达式中使用的布尔运算符列表。

Index	Operator	Description
1)	and	它指定必须同时满足两个条件。
2)	or	它指定必须满足任何一个条件。
3)	not()	它指定检查条件不满足的功能。

XPath布尔运算符示例让我们举一个例子来创建一个元素列表, 该元素的表具有其属性ID和其子元素< firstname> , < lastname> , < nickname> 和< salary> 。在此示例中, 它检查id为001或003, 然后打印详细信息。
employee.xml

< ?xml version = "1.0"?> < ?xml-stylesheet type = "text/xsl" href = "http://www.srcmini.com/employee.xsl"?> < class> < employee id = "001"> < firstname> Abhiram< /firstname> < lastname> Kushwaha< /lastname> < nickname> Manoj< /nickname> < salary> 15000< /salary> < /employee> < employee id = "002"> < firstname> Akash< /firstname> < lastname> Singh< /lastname> < nickname> Bunty< /nickname> < salary> 25000< /salary> < /employee> < employee id = "003"> < firstname> Brijesh< /firstname> < lastname> Kaushik< /lastname> < nickname> Ballu< /nickname> < salary> 20000< /salary> < /employee> < employee id = "004"> < firstname> Zoya< /firstname> < lastname> Mansoori< /lastname> < nickname> Sonam< /nickname> < salary> 30000< /salary> < /employee> < /class>

员工.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> Employee< /h2> < table border = "1"> < tr bgcolor = "pink"> < th> ID< /th> < th> First Name< /th> < th> Last Name< /th> < th> Nick Name< /th> < th> Salary< /th> < /tr> < xsl:for-each select = "class/employee[(@id = 001) or ((@id=003))]"> < tr> < td> < xsl:value-of select = "@id"/> < /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 = "salary"/> < /td> < /tr> < /xsl:for-each> < /table> < /body> < /html> < /xsl:template> < /xsl:stylesheet>

【XPath布尔运算符】输出