字節數組比較大小

/// <summary>
/// 字節數組比較
/// </summary>
/// <param name="bytearray1">字節數組 1</param>
/// <param name="bytearray2">字節數組 2</param>
/// <returns>如果兩個數組相同，返回0；如果數組1大於數組2，返回負值；反之，則返回值大於0。</returns>
public int MemoryCompareByteArray(byte[] bytearray1, byte[] bytearray2)
{
      int result = 0;
      if (bytearray1.Length != bytearray2.Length)
      {
            result = bytearray1.Length - bytearray2.Length;
       }
       else
       {
              for (int i = 0; i < bytearray1.Length; i++)
              {
                    if (bytearray1[i] != bytearray2[i])
                    {
                        result = (int)(bytearray1[i] - bytearray2[i]);
                        break;
                    }
               }
        }
       return result;
}