求最简单的BGR色彩转换RGB色彩代码

Question

如F59B4C转换为4C9BF5 就是R和B对调的代码

Answer 1

Int32[] array = new Int32[3]{0xFF,0x8A,0xFA};
IEnumerable<Int32> newarrary=array.Reverse<Int32>();
List<string> lstRGB=new List<string>();
newarray.ToList<Int32>.Foreach(i=>lstRGB.Add(i.ToString("X")));
return lstRGB;

Answer 2

  string.Join("",
  s_Test.ToCharArray()
  .Select((s, i) => new { Value = s.ToString(), Pos = i / 2 })
  .OrderByDescending(s => s.Pos)
  .Select(s => s.Value).ToArray());

Answer 3

string str = "F59B4C";
str = Regex.Replace(str, @"(?i)([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})", "$3$2$1");