string[] source = { "01", "10", "50", "100", "1000", "5000" };
byte[] result = source.Select(x => int.Parse(x)).SelectManay(x => x < 256 ? new byte[] { (byte)x } : new byte[] { (byte)(x / 256), (byte)(x % 256) }).ToArray();

------解决方案--------------------
C# code


String[] x = { "01", "10", "50", "100", "1000", "5000", int.MaxValue.ToString() };
String xxx = "";
foreach (String xx in x)
{ 
    String _x = int.Parse(xx).ToString("X");
    _x = _x.Length % 2 != 0 ? "0" + _x : _x;
    for (int i = 0; i < _x.Length / 2;i++ )
        xxx += "0x" + _x.Substring(i,2) + ",";        
}
xxx = xxx.TrimEnd(',');
String[] b = xxx.Split(',');;
foreach(string y in b)
    MessageBox.Show(y + "\r\n");