public void sendMail(object eg)
        {
            EmailAndGudi newEg = (EmailAndGudi)eg;
            SmtpClient smtp = new SmtpClient("smtp.163.com");
            smtp.Credentials = new NetworkCredential("aa@163.com", "mima");

            MailMessage mail = new MailMessage();
            mail.From = new MailAddress("aa@163.com");
            mail.To.Add("aaa@qq.com");  // 收件人
            mail.Subject = "密码取回";

            string strUrl = string.Format("<a href=\"{0}/Step/updatepwd.aspx?forgetPwd={1}\" target=\"_blank\">更改密碼</a>", newEg.url, newEg.strGuid);
            string bb = "<br/><br/><br/>" ;

            mail.Body = "請及時查收並更改密碼,該鏈接只能使用一次" + bb;
            mail.BodyEncoding = Encoding.UTF8;
            mail.IsBodyHtml = true;
            mail.Priority = MailPriority.Normal;

            try
            {
                smtp.Send(mail);
            }
            catch (System.Net.Mail.SmtpException ex)
            {
                Console.WriteLine(ex.Message);
            }
        }