/// <summary>
        /// 得到电脑CPU序列号
        /// </summary>
        public string GetComputerCPUSerialNo()
        {
            string cpuSerialNo = string.Empty;
            System.Management.ManagementClass managementClass = new System.Management.ManagementClass("Win32_Processor");
            System.Management.ManagementObjectCollection managementObjectCollection = managementClass.GetInstances();
            foreach (System.Management.ManagementObject managementObject in managementObjectCollection)
            {
                cpuSerialNo = managementObject.Properties["ProcessorId"].Value.ToString();
                break;
            }
            return cpuSerialNo;
        }

        /// <summary>
        /// 得到客户端IP地址
        /// </summary>
        public string GetClientIdAddress()
        {
            string ip = string.Empty;
            try
            {
                if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_ForWARDED_For"] == null)
                    ip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
                else
                    ip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_ForWARDED_For"].ToString();

                if (string.IsNullOrEmpty(ip)) {
                    ip = System.Web.HttpContext.Current.Request.UserHostAddress;
                }
            }
            catch { ip = "1.1.1.1"; }
            return ip;
        }