C#软件注册码的实现代码

第一步。根据卷标，cpu序列号，生成机器码

// 取得设备硬盘的卷标号
        public static string getdiskvolumeserialnumber()
        {
            managementclass mc = new managementclass(“win32_networkadapterconfiguration”);
            managementobject disk = new managementobject(“win32_logicaldisk.deviceid=”d:”");
            disk.get();
            return disk.getpropertyvalue(“volumeserialnumber”).tostring();
        }

        //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;
            }
        }

第二步。根据机器码 生成注册码

        //生成注册码    

       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;
        }

第三步。检查注册状况，若没有注册，可自定义试用     

/// <summary>
        /// 检查注册
        /// </summary>
        private void checkregist()
        {

                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();
            }
        }