private void btn_Create_Click(object sender, EventArgs e)
        {
            string uuid = GetUuid();
            string jiqima = GenerateMD5(uuid).ToUpper();
            tb_IdCard.Text = jiqima;
        }

        /// <summary>
        /// 获取UUID
        /// </summary>
        /// <returns></returns>
        public static string GetUuid()
        {
            string uuid = null;
            try
            {
                SelectQuery query = new SelectQuery("select * from Win32_ComputerSystemProduct");
                using (ManagementObjectSearcher searcher = new ManagementObjectSearcher(query))
                {
                    foreach (var item in searcher.Get())
                    {
                        using (item) uuid = item["UUID"].ToString();
                    }
                }
                //有些厂商的配件不支持UUId会显示为一堆F
                if (uuid == null || uuid == "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF")
                {
                    uuid = GetMacAddress();
                }
                return uuid;
            }
            catch (Exception)
            {
                return "unknown";
            }
        }

        /// <summary>  
        /// 获取本机MAC地址  
        /// </summary>  
        /// <returns>本机MAC地址</returns>  
        public static string GetMacAddress()
        {
            try
            {
                string strMac = string.Empty;
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        strMac = mo["MacAddress"].ToString();
                    }
                }
                moc = null;
                mc = null;
                return strMac;
            }
            catch
            {
                return "unknown";
            }
        }

        public static string GenerateMD5(string txt)
        {
            using (MD5 mi = MD5.Create())
            {
                byte[] buffer = Encoding.Default.GetBytes(txt);
                //开始加密
                byte[] newBuffer = mi.ComputeHash(buffer);
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < newBuffer.Length; i++)
                {
                    sb.Append(newBuffer[i].ToString("x2"));
                }
                return sb.ToString();
            }
        }


        /// <summary>
        /// 加密、解密
        /// </summary>
        public class EncryptUtilSeal
        {
            private static byte[] key = new byte[] { 78, 56, 61, 94, 12, 88, 56, 63, 66, 111, 102, 77, 1, 186, 97, 45 };
            private static byte[] iv = new byte[] { 36, 34, 42, 122, 242, 87, 2, 90, 59, 117, 123, 63, 72, 171, 130, 61 };

            private static IFormatter S_Formatter = null;

            static EncryptUtilSeal()
            {
                S_Formatter = new BinaryFormatter();//创建一个序列化的对象
            }
            /// <summary>
            /// 采用Rijndael128位加密二进制可序列化对象至文件
            /// </summary>
            /// <param name="para">二进制对象</param>
            /// <param name="filePath">文件路径</param>
            /// <returns></returns>
            public static bool EncryptObject(object para, string filePath)
            {
                //创建.bat文件 如果之前错在.bat文件则覆盖，无则创建
                using (Stream fs = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.None))
                {
                    RijndaelManaged RMCrypto = new RijndaelManaged();
                    CryptoStream csEncrypt = new CryptoStream(fs, RMCrypto.CreateEncryptor(key, iv), CryptoStreamMode.Write);
                    S_Formatter.Serialize(csEncrypt, para);//将数据序列化后给csEncrypt
                    csEncrypt.Close();
                    fs.Close();
                    return true;
                }
            }

            /// <summary>
            /// 从采用Rijndael128位加密的文件读取二进制对象
            /// </summary>
            /// <param name="filePath">文件路径</param>
            /// <returns>二进制对象</returns>
            public static object DecryptObject(string filePath)
            {
                //打开.bat文件
                using (Stream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    object para;
                    RijndaelManaged RMCrypto = new RijndaelManaged();
                    CryptoStream csEncrypt = new CryptoStream(fs, RMCrypto.CreateDecryptor(key, iv), CryptoStreamMode.Read);
                    para = S_Formatter.Deserialize(csEncrypt); //将csEncrypt反序列化回原来的数据格式；
                    csEncrypt.Close();
                    fs.Close();
                    return para;
                }
            }
        }

        private void btn_Copy_Click(object sender, EventArgs e)
        {
            string text = tb_IdCard.Text.Trim();
            if (text == "nuttertools")
            {
                label1.Visible = true;
                label2.Visible = true;
                tb_ShouQuanTime.Visible = true;
                btn_CreateDat.Visible = true;
            }
            else
            {
                Clipboard.SetDataObject(text);
                MessageBox.Show("复制成功，请联系开发者授权_QQ:1664701345");
            }
        }

        private void btn_CreateDat_Click(object sender, EventArgs e)
        {
            try
            {
                string uuid = GetUuid();
                string jiqima = GenerateMD5(uuid).ToUpper();
                double days =double.Parse(tb_ShouQuanTime.Text.Trim());
                DateTime today = DateTime.Now.AddDays(days);
                string ConfigFilePath = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "CCGiao.DAT");
                //写入
                Hashtable para = new Hashtable();
                para.Add("jqm", jiqima);
                para.Add("days", today);
                EncryptUtilSeal.EncryptObject(para, ConfigFilePath);
                MessageBox.Show("生成成功");
                this.Close();
            }
            catch
            {
                MessageBox.Show("生成失败");
            }

        }
        //获取当前程序级的版本号
        public static Version GetEdition()
        {
            return System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
        }


        private void tb_IdCard_TextChanged(object sender, EventArgs e)
        {
            string te = tb_IdCard.Text.Trim();
            if (te == "nu")
            {
                tb_IdCard.PasswordChar = '*';
            }
        }