我正在尝试使用XPathNodeIterator从元素中选择值。但是我无法从我的XML文件中获得预期的值。我的XML文件767MyCustomer1我获取值的方法我创建了两种方法，它们都不返回我想要的值。privatestaticstringGetValue_Attempt1(XPathDocumentxPathDocument,stringxpathExpression){varxpathNavigator=xPathDocument.CreateNavigator();varxpathNodeIterator=xpathNavigator.Select(xpathExpressio

-aaaa-firtslast8.23bbb18.23ccc11.22我已经从xml文件中选择了所有书籍。如何使用XPath选择每本书的标题、作者(名字和姓氏)和价格？xPathDoc=newXPathDocument(filePath);xPathNavigator=xPathDoc.CreateNavigator();XPathNodeIteratorxPathIterator=xPathNavigator.Select("/bookstore//book");foreach(XPathNavigatorbookinxPathIterator){??}