asp.net 输出XML文件

private void WriteXML()
{
StringBuilder sb = new StringBuilder();
sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\" ?> ");
sb.Append(" <!-- ");
sb.Append("<content>");
sb.Append("<name>zhangsan</name>");
sb.Append("</content>");
Response.Clear();
Response.ContentType = "text/xml";
Response.Write(sb.ToString());
Response.End();
//Response.Clear();
//Response.ContentType = "text/html";
//Response.Write(" ");
//Response.End();
}