C#软件注册码的实现代码

        //获得CPU的序列号
        public static string getCpu()
        {
            string strCpu = null;
            ManagementClass myCpu = new ManagementClass(“win32_Processor”);
            ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
            foreach (ManagementObject myObject in myCpuConnection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
                break;
            }
            return strCpu;
        }
        //生成机器码
        public static string getMNum()
        {
            string strNum = getCpu() + GetDiskVolumeSerialNumber();//获得24位Cpu和硬盘序列号
            string strMNum = strNum.Substring(0, 24);//从生成的字符串中取出前24个字符做为机器码
            return strMNum;
        }
        public static int[] intCode = new int[127];//存储密钥
        public static int[] intNumber = new int[25];//存机器码的Ascii值
        public static char[] Charcode = new char[25];//存储机器码字
        public static void setIntCode()//给数组赋值小于10的数
        {
            for (int i = 1; i < intCode.Length; i++)
            {
                intCode[i] = i % 9;
            }
        }

       public static string getRNum()
        {
            setIntCode();//初始化127位数组
            for (int i = 1; i < Charcode.Length; i++)//把机器码存入数组中
            {
                Charcode[i] = Convert.ToChar(getMNum().Substring(i – 1, 1));
            }
            for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一个整数组中。
            {
                intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);
            }
            string strAsciiName = “”;//用于存储注册码
            for (int j = 1; j < intNumber.Length; j++)
            {
                if (intNumber[j] >= 48 && intNumber[j] <= 57)//判断字符ASCII值是否0－9之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 65 && intNumber[j] <= 90)//判断字符ASCII值是否A－Z之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 97 && intNumber[j] <= 122)//判断字符ASCII值是否a－z之间
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else//判断字符ASCII值不在以上范围内
                {
                    if (intNumber[j] > 122)//判断字符ASCII值是否大于z
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] – 10).ToString();
                    }
                    else
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] – 9).ToString();
                    }
                }
            }
            return strAsciiName;
        }

                this.btn_reg.Enabled = true;

                  RegistryKey retkey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(“software”, true).CreateSubKey(“wxk”).CreateSubKey(“wxk.INI”);
                foreach (string strRNum in retkey.GetSubKeyNames())//判断是否注册
                {
                    if (strRNum == clsTools.getRNum())
                    {
                        thControl(true);
                        return;
                    }
                }
                thControl(false);
                Thread th2 = new Thread(new ThreadStart(thCheckRegist2));
                th2.Start();

          }
        }

        /// <summary>
        /// 验证试用次数
        /// </summary>
        private static void thCheckRegist2()
        {
            MessageBox.Show(“您现在使用的是试用版，该软件可以免费试用3000000次！”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);
            Int32 tLong;
            try
            {
                tLong = (Int32)Registry.GetValue(“HKEY_LOCAL_MACHINE\SOFTWARE\angel”, “UseTimes”, 0);
                MessageBox.Show(“感谢您已使用了” + tLong + “次”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch
            {
                Registry.SetValue(“HKEY_LOCAL_MACHINE\SOFTWARE\angel”, “UseTimes”, 0, RegistryValueKind.DWord);
                MessageBox.Show(“欢迎新用户使用本软件”, “提示”, MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            tLong = (Int32)Registry.GetValue(“HKEY_LOCAL_MACHINE\SOFTWARE\angel”, “UseTimes”, 0);
            if (tLong < 3000000)
            {
                int Times = tLong + 1;
                Registry.SetValue(“HKEY_LOCAL_MACHINE\SOFTWARE\angel”, “UseTimes”, Times);
            }
            else
            {
                MessageBox.Show(“试用次数已到”, “警告”, MessageBoxButtons.OK, MessageBoxIcon.Warning);
                Application.Exit();
            }
        }