Xml文件操作

 

using System;
using System.Text;
using System.Xml;

class XmlOperate
{
    private XmlDocument xmlDocument;

    private void CreateXmlFile(string filePath)
    {
        xmlDocument = new XmlDocument();
        XmlDeclaration xmlDeclaration = xmlDocument.CreateXmlDeclaration("1.0", "utf-8", "yes");
        XmlElement schoolElement = xmlDocument.CreateElement("school");
        XmlElement studentElement = xmlDocument.CreateElement("student");
        XmlElement nameElement = xmlDocument.CreateElement("name");
        nameElement.InnerText = "张三";
        studentElement.AppendChild(nameElement);
        XmlElement ageElement = xmlDocument.CreateElement("age");
        ageElement.InnerText = "19";
        studentElement.AppendChild(ageElement);
        XmlElement sexElement = xmlDocument.CreateElement("sex");
        sexElement.InnerText = "男";
        studentElement.AppendChild(ageElement);
        schoolElement.AppendChild(studentElement);
        xmlDocument.AppendChild(xmlDeclaration);
        xmlDocument.AppendChild(schoolElement);
        xmlDocument.Save(filePath);
    }

    private void ReadXmlFile(string fileName)
    {
        XmlDocument xmlDocument = new XmlDocument();
        xmlDocument.Load(fileName);
        XmlNode Node = xmlDocument.DocumentElement;
        foreach (XmlNode item in Node)
        {
            Console.WriteLine("节点名称：" + item.Name);
            foreach (XmlNode studentNode in item)
            {
                switch (studentNode.Name)
                {
                    case "name":
                        Console.WriteLine("姓名：" + studentNode.InnerText);
                        break;
                    case "age":
                        Console.WriteLine("年龄：" + studentNode.InnerText);
                        break;
                    case "sex":
                        Console.WriteLine("性别：" + studentNode.InnerText);
                        break;
                }
            }
        }
    }

    private void AddElement(XmlDocument xmlDocument)
    {
        XmlNode studentNode = xmlDocument.DocumentElement.SelectSingleNode("student");
        XmlElement addressElement = xmlDocument.CreateElement("address");
        addressElement.SetAttribute("city", "襄樊");
        addressElement.InnerText = "樊城区19号";
        studentNode.AppendChild(addressElement);

    }

    private void DeleteElement(XmlDocument xmlDocument)
    {
        XmlNode studentNode = xmlDocument.DocumentElement.SelectSingleNode("student");
        foreach (XmlNode item in studentNode)
        {
            if (item.Name == "address")
            {
                studentNode.RemoveChild(item);
            }
        }
    }

    static void Main(string[] args)
    {
        string filePath = "c:\\school.xml";
        XmlOperate xml = new XmlOperate();
        //xml.CreateXmlFile(filePath);
        //xml.ReadXmlFile(filePath);
        xml.xmlDocument = new XmlDocument();
        xml.xmlDocument.Load(filePath);
        //xml.AddElement(xml.xmlDocument);
        xml.DeleteElement(xml.xmlDocument);
        xml.xmlDocument.Save(filePath);
    }

}