diff --git a/UserClass/CRCcheck16.cs b/UserClass/CRCcheck16.cs
new file mode 100644
index 0000000..14381a9
--- /dev/null
+++ b/UserClass/CRCcheck16.cs
@@ -0,0 +1,193 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace formula_manage.UserClass
+{
+    /// <summary>
+    /// CRC校验
+    /// </summary>
+    public class CRCcheck16
+    {
+
+        #region  CRC16
+        public static byte[] CRC16(byte[] data)
+        {
+            int len = data.Length;
+            if (len > 0)
+            {
+                ushort crc = 0xFFFF;
+
+                for (int i = 0; i < len; i++)
+                {
+                    crc = (ushort)(crc ^ (data[i]));
+                    for (int j = 0; j < 8; j++)
+                    {
+                        crc = (crc & 1) != 0 ? (ushort)((crc >> 1) ^ 0xA001) : (ushort)(crc >> 1);
+                    }
+                }
+                byte hi = (byte)((crc & 0xFF00) >> 8);  //高位置
+                byte lo = (byte)(crc & 0x00FF);         //低位置
+
+                return new byte[] { hi, lo };
+            }
+            return new byte[] { 0, 0 };
+        }
+        #endregion
+
+        #region  ToCRC16
+        public static string ToCRC16(string content)
+        {
+            return ToCRC16(content, Encoding.UTF8);
+        }
+
+        public static string ToCRC16(string content, bool isReverse)
+        {
+            return ToCRC16(content, Encoding.UTF8, isReverse);
+        }
+
+        public static string ToCRC16(string content, Encoding encoding)
+        {
+            return ByteToString(CRC16(encoding.GetBytes(content)), true);
+        }
+
+        public static string ToCRC16(string content, Encoding encoding, bool isReverse)
+        {
+            return ByteToString(CRC16(encoding.GetBytes(content)), isReverse);
+        }
+
+        public static string ToCRC16(byte[] data)
+        {
+            return ByteToString(CRC16(data), true);
+        }
+
+        public static string ToCRC16(byte[] data, bool isReverse)
+        {
+            return ByteToString(CRC16(data), isReverse);
+        }
+        #endregion
+
+        #region  ToModbusCRC16
+        public static string ToModbusCRC16(string s)
+        {
+            return ToModbusCRC16(s, true);
+        }
+
+        public static string ToModbusCRC16(string s, bool isReverse)
+        {
+            return ByteToString(CRC16(StringToHexByte(s)), isReverse);
+        }
+
+        public static string ToModbusCRC16(byte[] data)
+        {
+            return ToModbusCRC16(data, true);
+        }
+
+        public static string ToModbusCRC16(byte[] data, bool isReverse)
+        {
+            return ByteToString(CRC16(data), isReverse);
+        }
+        #endregion
+
+        #region  ByteToString
+        public static string ByteToString(byte[] arr, bool isReverse)
+        {
+            try
+            {
+                byte hi = arr[0], lo = arr[1];
+                return Convert.ToString(isReverse ? hi + lo * 0x100 : hi * 0x100 + lo, 16).ToUpper().PadLeft(4, '0');
+            }
+            catch (Exception ex) { throw (ex); }
+        }
+
+        public static string ByteToString(byte[] arr)
+        {
+            try
+            {
+                return ByteToString(arr, true);
+            }
+            catch (Exception ex) { throw (ex); }
+        }
+        #endregion
+
+        #region  StringToHexString
+        public static string StringToHexString(string str)
+        {
+            StringBuilder s = new StringBuilder();
+            foreach (short c in str.ToCharArray())
+            {
+                s.Append(c.ToString("X4"));
+            }
+            return s.ToString();
+        }
+        #endregion
+
+        #region  StringToHexByte
+        private static string ConvertChinese(string str)
+        {
+            StringBuilder s = new StringBuilder();
+            foreach (short c in str.ToCharArray())
+            {
+                if (c <= 0 || c >= 127)
+                {
+                    s.Append(c.ToString("X4"));
+                }
+                else
+                {
+                    s.Append((char)c);
+                }
+            }
+            return s.ToString();
+        }
+
+        private static string FilterChinese(string str)
+        {
+            StringBuilder s = new StringBuilder();
+            foreach (short c in str.ToCharArray())
+            {
+                if (c > 0 && c < 127)
+                {
+                    s.Append((char)c);
+                }
+            }
+            return s.ToString();
+        }
+
+        /// <summary>
+        /// 字符串转16进制字符数组
+        /// </summary>
+        /// <param name="hex"></param>
+        /// <returns></returns>
+        public static byte[] StringToHexByte(string str)
+        {
+            return StringToHexByte(str, false);
+        }
+
+        /// <summary>
+        /// 字符串转16进制字符数组
+        /// </summary>
+        /// <param name="str"></param>
+        /// <param name="isFilterChinese">是否过滤掉中文字符</param>
+        /// <returns></returns>
+        public static byte[] StringToHexByte(string str, bool isFilterChinese)
+        {
+            string hex = isFilterChinese ? FilterChinese(str) : ConvertChinese(str);
+
+            //清除所有空格
+            hex = hex.Replace(" ", "");
+            //若字符个数为奇数，补一个0
+            hex += hex.Length % 2 != 0 ? "0" : "";
+
+            byte[] result = new byte[hex.Length / 2];
+            for (int i = 0, c = result.Length; i < c; i++)
+            {
+                result[i] = Convert.ToByte(hex.Substring(i * 2, 2), 16);
+            }
+            return result;
+        }
+        #endregion
+
+    }
+}
diff --git a/Windows/CDKEY.xaml b/Windows/CDKEY.xaml
index de4b509..e1d1a15 100644
--- a/Windows/CDKEY.xaml
+++ b/Windows/CDKEY.xaml
@@ -12,6 +12,7 @@
         <TextBox x:Name="sn_id" HorizontalAlignment="Left" Height="20" Margin="90,10,0,0" VerticalAlignment="Top" Width="360" Background="#FFE6E6E6" IsReadOnly="True" IsTabStop="False" Focusable="False"/>
         <TextBox x:Name="cdk" HorizontalAlignment="Left" Height="20" Margin="90,35,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="360"/>
         <Button Content="OK" HorizontalAlignment="Right" Height="20" Margin="0,60,50,0" VerticalAlignment="Top" Width="85" Background="#FFE6E6E6" Click="Button_Click_2"/>
+        <TextBox x:Name="sn_time" HorizontalAlignment="Left" Height="20" Margin="90,60,0,0" VerticalAlignment="Top" Width="250" Background="{x:Null}" IsReadOnly="True" IsTabStop="False" Focusable="False" BorderBrush="{x:Null}"/>
 
     </Grid>
 </Window>
diff --git a/Windows/CDKEY.xaml.cs b/Windows/CDKEY.xaml.cs
index 70e026b..a75335a 100644
--- a/Windows/CDKEY.xaml.cs
+++ b/Windows/CDKEY.xaml.cs
@@ -1,7 +1,11 @@
-using System;
+using formula_manage.UserClass;
+using System;
 using System.Collections.Generic;
 using System.Data.SqlClient;
 using System.Linq;
+using System.Management;
+using System.Runtime.InteropServices;
+using System.Security.Cryptography;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
@@ -28,14 +32,8 @@ namespace formula_manage.Windows
             InitializeComponent();
         }
 
-        bool SQLTIME;
-        int Time;
-        int i;
-        string SQLIP;
-        string SQLNAME;
-        bool SQLMOD;
-        string SQLUSER;
-        string SQLPASS;
+        string KEY;
+        string SN;
 
         public string INIPath = Convert.ToString(System.AppDomain.CurrentDomain.BaseDirectory) + "formula.ini";
 
@@ -43,21 +41,160 @@ namespace formula_manage.Windows
         {
             UserClass.IniFile.IniFiles Configini = new UserClass.IniFile.IniFiles(INIPath);   //读配置文件
 
-            SQLIP = Configini.IniReadvalue("SQL_SERVER", "SQL1");    //读配置文件
-            SQLNAME = Configini.IniReadvalue("SQL_SERVER", "SQL2");
-            int.TryParse(Configini.IniReadvalue("SQL_SERVER", "SQL3"), out i);   //读数据库状态配置文件
-            if (i == 0) SQLMOD = false;
-            else SQLMOD = true;           
-            SQLUSER = Configini.IniReadvalue("SQL_SERVER", "SQL4");
-            SQLPASS = Configini.IniReadvalue("SQL_SERVER", "SQL5");
+            //       KEY = Configini.IniReadvalue("CDKEY", "KEY");    //读配置文件
+            //        SN = Configini.IniReadvalue("CDKEY", "SN");
+            // 获取CPU序列号
+            string cpuSerialNumber = GetCPUSerialNumber();
+            // 获取主板序列号
+            string biosSerialNumber = GetBIOSSerialNumber();
+            // 获取硬盘序列号
+            //string hardDiskSerialNumber = GetHardDiskSerialNumber();
+            // 获取网卡地址
+            //string netCardMACAddress = GetNetCardMACAddress();
 
+            sn_id.Text = MD5Encrypt16(cpuSerialNumber+ biosSerialNumber);
         }
+        /// <summary>
+        /// 获取cpuid
+        /// </summary>
+        public static string GetCPUSerialNumber()
+        {
+            try
+            {
+                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");
+                string cpuSerialNumber = "";
+                foreach (ManagementObject mo in searcher.Get())
+                {
+                    cpuSerialNumber = mo["ProcessorId"].ToString().Trim();
+                    break;
+                }
+                return cpuSerialNumber;
+            }
+            catch
+            {
+                return "";
+            }
+        }
+        /// <summary>
+        /// 获取主板id
+        /// </summary>
+        public static string GetBIOSSerialNumber()
+        {
+            try
+            {
+                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_BIOS");
+                string biosSerialNumber = "";
+                foreach (ManagementObject mo in searcher.Get())
+                {
+                    biosSerialNumber = mo.GetPropertyValue("SerialNumber").ToString().Trim();
+                    break;
+                }
+                return biosSerialNumber;
+            }
+            catch
+            {
+                return "";
+            }
+        }
+        /// <summary>
+        /// 获取硬盘id
+        /// </summary>
+        public static string GetHardDiskSerialNumber()
+        {
+            try
+            {
+                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
+                string hardDiskSerialNumber = "";
+                foreach (ManagementObject mo in searcher.Get())
+                {
+                    hardDiskSerialNumber = mo["SerialNumber"].ToString().Trim();
+                    break;
+                }
+                return hardDiskSerialNumber;
+            }
+            catch
+            {
+                return "";
+            }
+        }
+        /// <summary>
+        /// 获取网卡id
+        /// </summary>
+        public static string GetNetCardMACAddress()
+        {
+            try
+            {
+                ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapter WHERE ((MACAddress Is Not NULL) AND (Manufacturer <> 'Microsoft'))");
+                string netCardMACAddress = "";
+                foreach (ManagementObject mo in searcher.Get())
+                {
+                    netCardMACAddress = mo["MACAddress"].ToString().Trim();
+                    break;
+                }
+                return netCardMACAddress;
+            }
+            catch
+            {
+                return "";
+            }
+        }
+        /// <summary>
+        /// 16位MD5加密
+        /// </summary>
+        /// <param name="password"></param>
+        /// <returns></returns>
+        public static string MD5Encrypt16(string password)
+        {
+            var md5 = new MD5CryptoServiceProvider();
+            string t2 = BitConverter.ToString(md5.ComputeHash(Encoding.Default.GetBytes(password)), 4, 8);
+            t2 = t2.Replace("-", "");
+            return t2;
+        }
+        /// <summary>
+        /// 32位MD5加密
+        /// </summary>
+        /// <param name="password"></param>
+        /// <returns></returns>
+        public static string MD5Encrypt32(string password)
+        {
+            string cl = password;
+            string pwd = "";
+            MD5 md5 = MD5.Create(); //实例化一个md5对像
+                                    // 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择　
+            byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(cl));
+            // 通过使用循环，将字节类型的数组转换为字符串，此字符串是常规字符格式化所得
+            for (int i = 0; i < s.Length; i++)
+            {
+                // 将得到的字符串使用十六进制类型格式。格式后的字符是小写的字母，如果使用大写（X）则格式后的字符是大写字符 
+                pwd = pwd + s[i].ToString("X");
+            }
+            return pwd;
+        }
+        /// <summary>
+        /// 64位MD5加密
+        /// </summary>
+        /// <param name="password"></param>
+        /// <returns></returns>
+        public static string MD5Encrypt64(string password)
+        {
+            string cl = password;
+            //string pwd = "";
+            MD5 md5 = MD5.Create(); //实例化一个md5对像
+                                    // 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择　
+            byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(cl));
+            return Convert.ToBase64String(s);
+        }
+
+
+        private void Button_Click_2(object sender, RoutedEventArgs e)
+        {
+            string t;
+            t = sn_id.Text.Substring(0,6);
+
 
 
+            cdk.Text = t +"240102" + CRCcheck16.ToCRC16(CRCcheck16.StringToHexByte(t+ "240102"),true);
 
-        private async void Button_Click_2(object sender, RoutedEventArgs e)
-        {          
-            
         }
 
     }
diff --git a/formula_manage.csproj b/formula_manage.csproj
index 97018a1..b885413 100644
--- a/formula_manage.csproj
+++ b/formula_manage.csproj
@@ -215,6 +215,7 @@
       <DependentUpon>Login.xaml</DependentUpon>
     </Compile>
     <Compile Include="SQLModels\STUFF_Product.cs" />
+    <Compile Include="UserClass\CRCcheck16.cs" />
     <Compile Include="UserClass\DataGridHelper.cs" />
     <Compile Include="UserClass\IniFile.cs" />
     <Compile Include="UserClass\PressKey.cs" />