如何拆分字节数组 [英] How to split byte array

问题描述

我必须根据0x1E分割字节

I have to split bytes based on 0x1E

byte[] input = { 0x1E, 0x30, 0x30, 0x31, 0x1E };

如何拆分字节数组？

how to split byte array?

推荐答案

尝试下面的代码行。

Hi,

Try with below line of code.

byte[]    input = { 0x1E, 0x30, 0x30, 0x31, 0x1E };
List<string> output = new List<string>();

int lastIndex = 0;

for (int i = 0; i < input.Length; i++) 
{
    if (input[i] == ',')
    {
         if (i - lastIndex == 4)
         {
             byte[] tmp = { input[i - 4], input[i - 3], input[i - 2], input[i - 1] };
             output.Add(BitConverter.ToInt32(tmp, 0));
         }
         lastIndex = i + 1;
    }
}
</string></string>

请参阅以下链接。



http://stackoverflow.com/questions/11816295/splitting-a-字节转换为多字节数组-c-sharp [ ^ ]

试试这个，

Hi,

try this,

 static void Main()
        {
            byte[] arr = { 0x1E, 0x23, 0x1E, 0x33, 0x44, 0x1E };
            byte split = 0x1E;
            List<byte[]> result = new List<byte[]>();
            int start = 0;
            for (int i = 0; i < arr.Length; i++)
            {
                if (arr[i] == split && i!=0)
                {
                    byte[] _in = new byte[i - start];
                    Array.Copy(arr, start, _in, 0, i - start);
                    result.Add(_in);
                    start = i+1;
                }
                else if (arr[i] == split && i == 0)
                {
                    start = i + 1;
                }
                else if (arr.Length - 1 == i && i != start)
                {
                    byte[] _in = new byte[i - start+1];
                    Array.Copy(arr, start, _in, 0, i - start+1);
                    result.Add(_in);
                }

            }
}

--SRJ

--SRJ

感谢大家的回复我已经通过以下yield yield关键字获得了一个样本

Thank u all for reply i have acheived this thru yield keyword below is a sample

class Program
    {
        static IEnumerable<byte[]> Packetize(IEnumerable<byte> stream)
        {
            var buffer = new List<byte>();
            foreach (byte b in stream)
            {
                buffer.Add(b);
                if (b == 0x1E||b==0x1F||b==0x07)
                {
                    buffer.Remove(b);
                    yield return buffer.ToArray();
                    buffer.Clear();
                }
            }
            if (buffer.Count > 0)
                yield return buffer.ToArray();
        }

        static void Main(string[] args)
        {
            byte[] input = {0x1E, 0x30, 0x30, 0x31, 0x1E, 0x40, 0x41, 0x42, 0x1E, 0x1F };
            foreach (var packet in Packetize(input))
            {
                foreach (var b in packet) Console.Write("{0:x2} ", b);
                Console.WriteLine();
            }
        }
    }

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