public static class XmlHelper

{

/// <summary>

/// 读取节点值

/// </summary>

/// <param name="Path">XML文件路径</param>

/// <param name="Node1">第一级节点</param>

/// <param name="Node2">第二级节点</param>

/// <returns></returns>

public static string GetXmlReader(string Path, string Node1, string Node2)

{

XmlDocument myDc = new XmlDocument();

myDc.Load(Path);

return myDc.SelectSingleNode(Node1).SelectSingleNode(Node2).InnerText;

}

/// <summary>

/// 创建一个XML文件

/// </summary>

/// <param name="Path">XML文件路径</param>

/// <param name="key">List</param>

/// <param name="value">List</param>

public static void CreateXML(string Path, List<string> key, List<string> value)

{

XmlDocument xmlDoc = new XmlDocument();

XmlNode node = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", "");

xmlDoc.AppendChild(node);

XmlNode root = xmlDoc.CreateElement("Config");

xmlDoc.AppendChild(root);

for (int i = 0; i < key.Count; i++)

{

CreateNode(xmlDoc, root, key[i].ToString(), value[i].ToString());

}

try

{

xmlDoc.Save(Path);

}

catch (Exception e)

{

}

}

/// <summary>

/// 创建一个XML文件中的 节点

/// </summary>

/// <param name="xmlDoc"></param>

/// <param name="parentNode"></param>

/// <param name="name"></param>

/// <param name="value"></param>

public static void CreateNode(XmlDocument xmlDoc, XmlNode parentNode, string name, string value)

{

XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);

node.InnerText = value;

parentNode.AppendChild(node);

}

/// <summary>

/// 更新XML中指定节点的值

/// </summary>

/// <param name="Path">XML文件路径</param>

/// <param name="NodeName">需要更改的节点</param>

/// <param name="NodeValue">需要更新的节点值</param>

public static void UpdateNode(string Path, string NodeName, string NodeValue)

{

XmlDocument doc = new XmlDocument();

doc.Load(Path);

XmlNode xn = doc.SelectSingleNode("//" + NodeName + "");

xn.InnerText = NodeValue;

doc.Save(Path);

}

}

 

转自：https://www.cnblogs.com/allen0118/p/6806305.html