/// <summary>  
        /// 初始化实例  
        /// </summary>  
        /// <param name="To">收件人地址</param>  
        /// <param name="From">发件人地址</param>  
        /// <param name="Body">邮件正文</param>  
        /// <param name="Title">邮件的主题</param>  
        /// <param name="Password">发件人密码</param>  
        public SendMail(string[] To, string From, string Body, string Title, string Password, Hashtable ht)
        {
            mailMessage = new MailMessage();
            foreach (var item in To)
            {
                mailMessage.To.Add(item);
            }
            TextCeShi ake = new TextCeShi();
            ake.indexout(ht);
            mailMessage.From = new System.Net.Mail.MailAddress(From);
            mailMessage.Subject = Title;
            mailMessage.Body = ake.textBody();
            mailMessage.IsBodyHtml = true;
            
            mailMessage.BodyEncoding = System.Text.Encoding.UTF8;
            mailMessage.Priority = System.Net.Mail.MailPriority.Normal;
            this.password = Password;
        }

/// <summary>  
        /// 异步发送邮件  
        /// </summary>  
        /// <param name="CompletedMethod"></param>  
        public void SendAsync(SendCompletedEventHandler CompletedMethod)
        {
            if (mailMessage != null)
            {
                smtpClient = new SmtpClient();
                smtpClient.Credentials = new System.Net.NetworkCredential(mailMessage.From.Address, password);//设置发件人身份的票据  
                smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                smtpClient.Host = "smtp." + mailMessage.From.Host;
                smtpClient.SendCompleted += new SendCompletedEventHandler(CompletedMethod);//注册异步发送邮件完成时的事件  
                smtpClient.SendAsync(mailMessage, mailMessage.Body);
            }
        }
        /// <summary>  
        /// 发送邮件  
        /// </summary>  
        public void Send()
        {
            if (mailMessage != null)
            {
                   smtpClient = new SmtpClient();
               
                    smtpClient.Credentials = new System.Net.NetworkCredential(mailMessage.From.Address, password);//设置发件人身份的票据  
                    smtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                    smtpClient.Host = "smtp." + mailMessage.From.Host;
                    smtpClient.Send(mailMessage);
                    mailMessage.Attachments.Dispose();
                    //smtpClient = null;
            }
        }

try
                {
                    //修改此处信息，可以注册一个邮箱进行发送
                    SendMailHelper.SendMail sd = new SendMailHelper.SendMail(new string[] { 帐号密码之类的})
                  
                    sd.Send();
                    message = "成功";
                    context.Response.Write("{\"success\":true,\"message\":\"" + message + "\"}");
                }
                catch
                {
                    message = "错误";
                    context.Response.Write("{\"success\":false,\"message\":\"" + message + "\"}");
                }