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using System.Net;using System.Net.Mime;using System.Net.Mail;///////////////////////////////protected void Button2_Click(object sender, EventArgs e)        {                                    MailAdd

using System;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Drawing;namespace WebHJControls{    ///     /// Export 的摘要说明。    ///     public class