c# public static bool IsSelectNode(string xmlPath,string nod

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c#
public static bool IsSelectNode(string xmlPath,string node)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xmlPath);
XmlNode result = xmlDoc.SelectSingleNode(@"//" + node);
return result = null;//就这行
}

eturn result != null;
这行是反会是否获取到你的XML文档的判断!
如果没获取到文档那么result肯定为NULL,则result != null返回的就是false
如果获取到了那么result != null返回的就是true

c# public static bool IsSelectNode(string xmlPath,string nod c#不懂得地方 private static string sandnamevalue;public static st public static Customer hasCustomer(String id,String pwd) { i public static void main(String[] args) { public class Breaker { static String o = ""; public class SystemTest { public static void main(String[] a public class Foo { public static void main(String[] args) { public class Test { public static void main(String[] agrs) { public class Test{ public static void main(String args[]){ i public class TreeMapDemo { public static void main(String[] java 九九乘法表public class s99{public static void main(String[] public String removeType(String sou){