📅  最后修改于: 2020-12-26 06:57:13        🧑  作者: Mango

XPath相对路径如果路径以我们选择的节点开始，则称为相对路径。请参阅此语法，该语法指定使用到雇员节点的相对路径来定位元素。XPath相对路径示例让我们举一个使用绝对路径定位元素的示例。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员工.xsl输出：...

📅  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：IndexAxisDescription1)ancestorIt specifies the ancestors of the current nodes which include the parents up t...

📅  最后修改于: 2020-12-26 06:59:10        🧑  作者: Mango

XPath运算子XPath在节点上定义运算符和函数。 XPath表达式返回节点集，字符串，布尔值或数字。XPath表达式中使用的运算符列表：OperatorDescription|It is used to computes two node-sets.+Addition Operator–Subtraction Operator*Multiplication OperatordivDivisio...

📅  最后修改于: 2020-12-26 07:00:08        🧑  作者: Mango

XPath比较运算符XPath中使用的比较运算符列表：IndexOperatorDescription1)=It specifies equals to2)!=It specifies not equals to3)<It specifies less than4)>It specifies greater than5)<=It specifies less than or equals to6...

📅  最后修改于: 2020-12-26 07:01:08        🧑  作者: Mango

XPath布尔运算符XPath表达式中使用的布尔运算符列表。IndexOperatorDescription1)andIt specifies that both conditions must be satisfied.2)orIt specifies that any one of the condition must be satisfied.3)not()It specifies func...

📅  最后修改于: 2020-12-26 07:02:07        🧑  作者: Mango

XPath编号运算符/函数与XPath表达式一起使用的数字运算符的列表：IndexOperatorDescription1)+It is used for addition operation.2)–It is used for subtraction operation.3)*It is used for multiplication operation.4)divIt is used for ...

📅  最后修改于: 2020-12-26 07:03:06        🧑  作者: Mango

XPath字符串函数XPath字符串函数列表：IndexFunctionDescription1)starts-with(string1, string2)It returns true when first string starts with the second string.2)contains(string1, string2)It returns true when the first...

📅  最后修改于: 2020-12-26 07:04:09        🧑  作者: Mango

XPath节点功能XPath表达式要使用的节点上的运算符的列表：IndexOperatorDescription1)/It is used to select node under a specific node.2)//It is used to select node from root node.3)[…]It is used to check node value.4)|It is use...

📅  最后修改于: 2020-12-26 07:05:10        🧑  作者: Mango

XPath通配符与XPath表达式一起使用的XPath通配符列表。IndexWildcardExpression1)*It is used to match any node.2).It is used to match the current node in context.3)@*It is used to match any attribute.4)node()It is used to m...

📅  最后修改于: 2020-12-26 07:06:14        🧑  作者: Mango

XPath谓词谓词指定用方括号括起来的XPath表达式。在某些情况下，它用于限制节点集中的选定节点。请参见“雇员”示例中的谓词用法。Employee.xmlIndexPredicateDescription1)/class/employee[1]It will select first employee element which is child of the class element.2)/...