C# XML节点与属性的读写

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最近学习了C# XML的读写，现在记录下来。代码中有详细注释，看注释应该就清楚了。

先上写XML的代码：

public static void XmlWrite()          {            String path = GetPath();            XmlDocument xmlDoc = new XmlDocument();              //创建类型声明节点               XmlNode node=xmlDoc.CreateXmlDeclaration("1.0","utf-8","");              xmlDoc.AppendChild(node);              //创建根节点               XmlNode root = xmlDoc.CreateElement("Setting");              xmlDoc.AppendChild(root);            //创建节点node1，名为writer1            XmlNode node1 = xmlDoc.CreateNode(XmlNodeType.Element, "writer1", null);                //创建属性attr01，名为name                XmlNode attr01 = xmlDoc.CreateNode(XmlNodeType.Attribute, "name", null);                attr01.Value = "amber";//设置属性attr01的值                node1.Attributes.SetNamedItem(attr01);//把属性attr01添加到节点node1                //创建属性attr02，名为age                XmlNode attr02 = xmlDoc.CreateNode(XmlNodeType.Attribute, "age", null);                attr02.Value = "28";                node1.Attributes.SetNamedItem(attr02);            //创建节点node1的子节点            CreateNode(xmlDoc, node1, "Book1", "android");            CreateNode(xmlDoc, node1, "Book2", "ios");            CreateNode(xmlDoc, node1, "Book3", "winform");              root.AppendChild(node1);            //创建节点node2，名为writer2            XmlNode node2 = xmlDoc.CreateNode(XmlNodeType.Element, "writer2", null);                 //创建属性attr1，名为name                XmlNode attr1 = xmlDoc.CreateNode(XmlNodeType.Attribute, "name", null);                attr1.Value = "amberoot";                node2.Attributes.SetNamedItem(attr1);                            XmlNode attr2 = xmlDoc.CreateNode(XmlNodeType.Attribute, "age", null);                attr2.Value = "32";                node2.Attributes.SetNamedItem(attr2);            //创建节点node2的子节点            CreateNode(xmlDoc, node2, "Book1", "hi");            CreateNode(xmlDoc, node2, "Book2", "hello");            CreateNode(xmlDoc, node2, "Book3", "hey");             root.AppendChild(node2);              try              {                xmlDoc.Save(path);            }             catch (Exception e)             {                  //显示错误信息                   Console.WriteLine(e.Message);              }             //Console.ReadLine();             }                          public static void CreateNode(XmlDocument xmlDoc,XmlNode parentNode,string name,string value)          {              XmlNode node = xmlDoc.CreateNode(XmlNodeType.Element, name, null);              node.InnerText = value;  //设置节点的值            parentNode.AppendChild(node);          }

结果：

然后是读XML的代码：

       public static void readXml()        {            String path = GetPath();            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(path);            XmlNode no = xmlDoc.SelectSingleNode("Setting");//获取根节点            XmlNodeList nodeList = no.ChildNodes;//获取根节点no的所有子节点            foreach (XmlNode nod0 in nodeList)            {                XmlElement element = (XmlElement)nod0;//获取节点                if (element.Name == "writer2")//element.Name获取节点element的节点名                {                    XmlNodeList elementList = element.ChildNodes;//element.ChildNodes获取节点element中的所有子节点                    foreach (XmlNode nod1 in elementList)                    {                        if (nod1.Name == "Book1")//nod1.Name获取节点nod1的节点名                        {                            String nod1_value = nod1.InnerText;//nod1.InnerText获取节点nod1的值                                                    }                    }                }            }        }

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