C#中的字节至字节至字至字节

时间:2019-01-31 05:22:10

标签: c# arrays byte word nibble

我需要一个3字节的数组

  • 将每个字节转换为半字节
  • 将Byte_0.Nibble_0 + Byte_0.Nibble_1 + Byte_1.Nibble_2添加为WORD
  • 将Byte_1.Nibble_0 + Byte_2.Nibble_1 + Byte_2.Nibble_2添加为WORD
  • 将每个WORD转换为字节数组

enter image description here

这是我尝试过的

 private static void GetBytesToNibbles(byte[] currentThree, out byte[] a, out byte[] b)
        {
            var firstLowerNibble = currentThree[0].GetNibble(0);
            var firstUpperNibble = currentThree[0].GetNibble(1);
            var secondLowerNibble = currentThree[1].GetNibble(0);
            var secondUpperNibble = currentThree[1].GetNibble(1);

            var thirdLowerNibble = currentThree[2].GetNibble(0);
            var thirdUpperNibble = currentThree[2].GetNibble(1);

            a= new byte[] {firstLowerNibble, firstUpperNibble, secondLowerNibble, 0x00};
            b= new byte[] {secondUpperNibble, thirdLowerNibble, thirdUpperNibble, 0x00};
        }

获取Nibble扩展名:

 public static byte GetNibble<T>(this T t, int nibblePos)
            where T : struct, IConvertible
        {
            nibblePos *= 4;
            var value = t.ToInt64(CultureInfo.CurrentCulture);
            return (byte) ((value >> nibblePos) & 0xF);
        }

我按图片所示正确执行吗?如果没有,有人可以帮助我提供正确的代码吗?

1 个答案:

答案 0 :(得分:0)

这并不完美,但是它将为您提供一个4字节的数组,您应该可以拆分自己。

图像令人困惑,因为它显示位数而不是示例值。我认为这就是为什么您认为需要两个4字节数组的原因。

public static void Main()
{
    byte byte0 = 0x11;
    byte byte1 = 0x22;
    byte byte2 = 0x33;

    int low = BitConverter.ToInt32(new byte[]{byte0, byte1,0,0},0);
    int high = BitConverter.ToInt32(new byte[] {byte1, byte2,0,0},0);

    low = low & 0x0fff;
    high = high & 0xfff0;
    high = high << 12;
    int all = high | low;

    byte[] intBytes = BitConverter.GetBytes(all);

    for (int i = 0; i < intBytes.Length; i++)
    {
        Console.WriteLine(String.Format("{0:X2}", intBytes[i]));
    }
}

结果:

11 02 32 03