笔记：从Hex向Byte[]转换 / Converting Hex String To Byte Array

using XS = System.Xml.Serialization;

public static class Utils
{
  private class dummyReader : XS.XmlSerializationReader
  {
    protected override void InitCallbacks()
    {
    }

    protected override void InitIDs()
    {
    }

    public static byte[] HexToBytes(string hex)
    {
      return ToByteArrayHex(hex);
    }
  }
  private class dummyWriter : XS.XmlSerializationWriter
  {
    protected override void InitCallbacks()
    {
    }

    public static string BytesToHex(byte[] bin)
    {
      return FromByteArrayHex(bin);
    }
  }

  public static string BytesToHex(byte[] bin)
  {
    return dummyWriter.BytesToHex(bin);
  }

  public static byte[] HexToBytes(string hex)
  {
    return dummyReader.HexToBytes(hex);
  }
}

虽然查阅.NET FX源码之后发现这个种实现要经过至少三层的静态方法调用，但这也是目前我能像出来的最偷懒的办法了。
Although it makes more than 3 layers of static method calling inside the Frameworks' implement, it's the easiest way I've found.