c# - 将硬盘串行字符串写入二进制文件

Question

我有一个简单的函数，可以从 C:\驱动器中获取硬盘驱动器序列号并将其放入一个字符串中:

ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"C:\"");
disk.Get();
string hdStr = Convert.ToString(disk["VolumeSerialNumber"]);

然后我尝试将上面的字符串转换为 ASCII，然后将其写出到二进制文件，我遇到的问题是，当转换此字符串并使用流编写器保存文件，并以十六进制编辑器，我看到了更多我原本想写的字节，例如“16342D1F4A61BC”

结果为:08 16 34 2d 1f 4a 61 c2 bc

它以某种方式在其中添加了 08 和 c2...

更完整的版本如下:

string constructor2 = "16342D1F4A61BC";
string StrValue = "";

while (constructor2.Length > 0)
{
    StrValue += System.Convert.ToChar(System.Convert.ToUInt32(constructor2.Substring(0, 2), 16)).ToString();
    // Remove from the hex object the converted value
    constructor2 = constructor2.Substring(2, constructor2.Length - 2);
}

FileStream writeStream;
try
{
    writeStream = new FileStream(Path.GetDirectoryName(Application.ExecutablePath) + "\\license.mgr", FileMode.Create);
    BinaryWriter writeBinay = new BinaryWriter(writeStream);
    writeBinay.Write(StrValue);
    writeBinay.Close();
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}

任何人都可以帮助我了解如何添加这些内容吗？

Answer 1

试试这个:

string constructor2 = "16342D1F4A61BC";
File.WriteAllBytes("test.bin", ToBytesFromHexa(constructor2));

使用以下辅助例程:

public static byte[] ToBytesFromHexa(string text)
{
    if (text == null)
        throw new ArgumentNullException("text");

        List<byte> bytes = new List<byte>();
    bool low = false;
    byte prev = 0;

    for (int i = 0; i < text.Length ; i++)
    {
        byte b = GetHexaByte(text[i]);
        if (b == 0xFF)
            continue;

        if (low)
        {
            bytes.Add((byte)(prev * 16 + b));
        }
        else
        {
            prev = b;
        }
        low = !low;
    }
    return bytes.ToArray();
}

public static byte GetHexaByte(char c)
{
    if ((c >= '0') && (c <= '9'))
        return (byte)(c - '0');

    if ((c >= 'A') && (c <= 'F'))
        return (byte)(c - 'A' + 10);

    if ((c >= 'a') && (c <= 'f'))
        return (byte)(c - 'a' + 10);

    return 0xFF;
}