using System.IO;
using System.Xml;
string n = "ali";
string f = "jouybari";
string t = "+989370000000";
private void button3_Click(object sender, EventArgs e)
{
XmlDocument x = new XmlDocument();
XmlElement el = x.CreateElement("Y");
XmlElement un = x.CreateElement("N");
XmlElement uf = x.CreateElement("F");
XmlElement ut = x.CreateElement("T");
un.InnerText = n;
uf.InnerText = f;
ut.InnerText = t;
el.AppendChild(un);
el.AppendChild(uf);
el.AppendChild(ut);
x.AppendChild(el);
x.Save("xml.txt");
}
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