c#如何使用列表子List<string，Class>将列表保存为xml

using System.Xml;

public class Student
{
    public string Name { get; set; }
    public int Age { get; set; }
}

List<Student> students = new List<Student>();
students.Add(new Student { Name = "Alice", Age = 20 });
students.Add(new Student { Name = "Bob", Age = 22 });
students.Add(new Student { Name = "Charlie", Age = 21 });

XmlDocument xmlDoc = new XmlDocument();
XmlDeclaration xmlDeclaration = xmlDoc.CreateXmlDeclaration("1.0", "UTF-8", null);
xmlDoc.InsertBefore(xmlDeclaration, xmlDoc.DocumentElement);

XmlElement root = xmlDoc.CreateElement("Students");
xmlDoc.AppendChild(root);

foreach (Student student in students)
{
    XmlElement studentElement = xmlDoc.CreateElement("Student");

    XmlElement nameElement = xmlDoc.CreateElement("Name");
    nameElement.InnerText = student.Name;
    studentElement.AppendChild(nameElement);

    XmlElement ageElement = xmlDoc.CreateElement("Age");
    ageElement.InnerText = student.Age.ToString();
    studentElement.AppendChild(ageElement);

    root.AppendChild(studentElement);
}

xmlDoc.Save("students.xml");