1 using MessagePack; 2 using MessagePack.Formatters; 3 using MessagePack.Resolvers; 4 using System; 5 using System.Drawing; 6  7 namespace MessageTest 8 { 9 internal class Program10  {11 private static void Main(string[] args)12  {13 // 不想用属性特性的话，就需要下两行代码.14 var resolver = MessagePack.Resolvers.CompositeResolver.Create(15  StandardResolver.Instance,16  CompositeResolver.Create(ColorFormatter.Instance)17  );18 19 var options = MessagePackSerializerOptions.Standard.WithResolver(resolver);20 MessagePackSerializer.DefaultOptions = options;21 22 var bin = MessagePackSerializer.Serialize(new IntKeySample() { S = Color.Red });23 24 var obj = MessagePackSerializer.Deserialize<IntKeySample>(bin);25 26  Console.Write(obj.S);27 28  Console.Read();29  }30  }31 32  [MessagePackObject]33 public class IntKeySample34  {35 [Key(3)]36 public int A { get; set; }37 38 [Key(10)]39 public int B { get; set; }40 41 [Key(1)]42 //[MessagePackFormatter(typeof(ColorFormatter))] 序列化 像main函数中 初始化 resolver 后就不需要该行43 public Color S { get; set; }44  }45 46 public class ColorFormatter : IMessagePackFormatter<Color>47  {48 public static ColorFormatter Instance = new ColorFormatter();49 50 public Color Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)51  {52 var a = reader.ReadByte();53 var r = reader.ReadByte();54 var g = reader.ReadByte();55 var b = reader.ReadByte();56 57 return Color.FromArgb(a, r, g, b);58  }59 60 public void Serialize(ref MessagePackWriter writer, Color value, MessagePackSerializerOptions options)61  {62  writer.Write(value.A);63  writer.Write(value.R);64  writer.Write(value.G);65  writer.Write(value.B);66  }67  }68 }