C#实现注册码注册机制效果详解

public partial class frmMain : Form
{
    public frmMain()
    {
        InitializeComponent();
    }
    SoftReg softreg = new SoftReg();//实例化公共类对象
    private void frmMain_Load(object sender, EventArgs e)
    {
        RegistryKey retkey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("software", true).CreateSubKey("mrwxk").CreateSubKey("mrwxk.ini");
        foreach (string strRNum in retkey.GetSubKeyNames())//判断是否注册
        {
            if (strRNum == softreg.getRNum())
            {
                this.Text = "主窗体（已注册）";
                button1.Enabled = false;
                return;
            }
        }
        this.Text = "主窗体（未注册）";
        button1.Enabled = true;
        MessageBox.Show("您现在使用的是试用版，该软件可以免费试用30次！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
        Int32 tLong;
        try
        {
            tLong = (Int32)Registry.GetValue("HKEY_LOCAL_MACHINE\\SOFTWARE\\tryTimes", "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\\tryTimes", "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\\tryTimes", "UseTimes", 0);
        if (tLong < 30)
        {
            int Times = tLong + 1;
            Registry.SetValue("HKEY_LOCAL_MACHINE\\SOFTWARE\\tryTimes", "UseTimes", Times);
        }
        else
        {
            MessageBox.Show("试用次数已到", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            Application.Exit();
        }
    }

    private void button1_Click(object sender, EventArgs e)
    {
        frmRegister frmregister = new frmRegister();
        frmregister.Show();
        this.Hide();
    }

    private void frmMain_FormClosed(object sender, FormClosedEventArgs e)
    {
        Application.Exit();
    }
}

public partial class frmRegister : Form
{
    public frmRegister()
    {
        InitializeComponent();
    }
    SoftReg softreg = new SoftReg();//实例化公共类对象
    private void frmRegister_Load(object sender, EventArgs e)
    {
        textBox1.Text = softreg.getMNum();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        if (textBox2.Text == "")
        {
            MessageBox.Show("注册码输入不能为空！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }
        else
        {
            if (textBox2.Text.Equals(softreg.getRNum()))
            {
                RegistryKey retkey = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("software", true).CreateSubKey("mrwxk").CreateSubKey("mrwxk.ini").CreateSubKey(textBox2.Text);
                retkey.SetValue("UserName", "mrsoft");
                MessageBox.Show("注册成功,程序需要重新加载！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.Hide();
                frmMain frmmain = new frmMain();
                frmmain.Show();
            }
            else
            {
                MessageBox.Show("注册码输入错误！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }

    private void button2_Click(object sender, EventArgs e)
    {
        this.Hide();
        frmMain frmmain = new frmMain();
        frmmain.Show();
    }
}

public partial class frmRMachine : Form
     {
         public frmRMachine()
         {
             InitializeComponent();
         }
 
         SoftReg softreg = new SoftReg();//实例化公共类对象
         private void button1_Click(object sender, EventArgs e)
         {
             if (textBox1.Text == "")
             {
                 MessageBox.Show("机器码输入不能为空！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
             }
             else
             {
                 textBox2.Text = softreg.getRNum();
             }
         }
 
         private void button2_Click(object sender, EventArgs e)
         {
             this.Close();
         }
     }

 public class SoftReg
    {
        // 取得设备硬盘的卷标号
        public 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 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 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 int[] intCode = new int[127];//存储密钥
        public int[] intNumber = new int[25];//存机器码的Ascii值
        public char[] Charcode = new char[25];//存储机器码字

        public void setIntCode()//给数组赋值小于10的数
        {
            for (int i = 1; i < intCode.Length; i++)
            {
                intCode[i] = i % 9;
            }
        }

        //生成注册码
        public 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(this.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;
        }
    }