程序代码：

XmlTextWriter writer = new XmlTextWriter("hello.xml", System.Text.Encoding.UTF8);
                writer.WriteStartDocument(true);
                writer.Formatting = Formatting.Indented;
                writer.Indentation = 2;
                writer.WriteStartElement("Table");
                createNode(IDTextBox.Text, nameTextBox.Text, gender.Text, writer);
                writer.WriteEndElement();
                writer.WriteEndDocument();
                writer.Close();
                MessageBox.Show("XML File created ! ");