1.float转double报错
报错类型：
Max allowed object depth reached while trying to export from type System.Collections.Generic.List
序列化时候会遇到float和double互转问题；
注意这里double转float会导致精度丢失；
解决办法：
JsonMapper.cs中添加几行代码；
2.Dictionary中key为int时报错
报错类型：
InvalidCastException: Specified cast is not valid
原方法中Dictionary的key只支持（string）强转，int强转为string失败，会报错；
解决办法：
JsonMapper.cs中WriteValue方法修改
3.Dictionary中key为enum时报错
LitJson的字典不支持Key为枚举；
序列化不会出错，反序列化会报错，无法读取枚举类型；
解决办法：
修改JsonMapper.cs中ReadValue方法：
原本reader.Value被强转为string，无法识别出枚举；
下面将reader.Value转为Object；
4.Unity中LitJson类型扩展
添加向量Vector2、Vector3、Vector4；
添加四元素Quaternion、Color、Color32；
添加Bounds、Rect、RectOffset；
项目中加入UnityTypeBridge.cs类和JsonExtension.cs类；
代码：
public static class UnityTypeBindings { static bool registerd; static UnityTypeBindings() { Register(); } public static void Register() { if (registerd) return; registerd = true; // 注册Type类型的Exporter JsonMapper.RegisterExporter<Type>((v, w) => { w.Write(v.Ful JsonMapper.RegisterImporter<string, Type>((s) => { return T // 注册Vector2类型的Exporter Action<Vector2, JsonWriter> writeVector2 = (v, w) => { w.WriteObjectStart(); w.WriteProperty("x", v.x); w.WriteProperty("y", v.y); w.WriteObjectEnd(); }; JsonMapper.RegisterExporter<Vector2>((v, w) => { writeVecto // 注册Vector3类型的Exporter Action<Vector3, JsonWriter> writeVector3 = (v, w) => { w.WriteObjectStart(); w.WriteProperty("x", v.x); w.WriteProperty("y", v.y); w.WriteProperty("z", v.z); w.WriteObjectEnd(); }; JsonMapper.RegisterExporter<Vector3>((v, w) => { writeVecto // 注册Vector4类型的Exporter JsonMapper.RegisterExporter<Vector4>((v, w) => { w.WriteObjectStart(); w.WriteProperty("x", v.x); w.WriteProperty("y", v.y); w.WriteProperty("z", v.z); w.WriteProperty("w", v.w); w.WriteObjectEnd(); }); // 注册Quaternion类型的Exporter JsonMapper.RegisterExporter<Quaternion>((v, w) => { w.WriteObjectStart(); w.WriteProperty("x", v.x); w.WriteProperty("y", v.y); w.WriteProperty("z", v.z); w.WriteProperty("w", v.w); w.WriteObjectEnd(); }); // 注册Color类型的Exporter JsonMapper.RegisterExporter<Color>((v, w) => { w.WriteObjectStart(); w.WriteProperty("r", v.r); w.WriteProperty("g", v.g); w.WriteProperty("b", v.b); w.WriteProperty("a", v.a); w.WriteObjectEnd(); }); // 注册Color32类型的Exporter JsonMapper.RegisterExporter<Color32>((v, w) => { w.WriteObjectStart(); w.WriteProperty("r", v.r); w.WriteProperty("g", v.g); w.WriteProperty("b", v.b); w.WriteProperty("a", v.a); w.WriteObjectEnd(); }); // 注册Bounds类型的Exporter JsonMapper.RegisterExporter<Bounds>((v, w) => { w.WriteObjectStart(); w.WritePropertyName("center"); writeVector3(v.center, w); w.WritePropertyName("size"); writeVector3(v.size, w); w.WriteObjectEnd(); }); // 注册Rect类型的Exporter JsonMapper.RegisterExporter<Rect>((v, w) => { w.WriteObjectStart(); w.WriteProperty("x", v.x); w.WriteProperty("y", v.y); w.WriteProperty("width", v.width); w.WriteProperty("height", v.height); w.WriteObjectEnd(); }); // 注册RectOffset类型的Exporter JsonMapper.RegisterExporter<RectOffset>((v, w) => { w.WriteObjectStart(); w.WriteProperty("top", v.top); w.WriteProperty("left", v.left); w.WriteProperty("bottom", v.bottom); w.WriteProperty("right", v.right); w.WriteObjectEnd(); }); } } public static class JsonExtensions { public static void WriteProperty(this JsonWriter w, string name, long value) { w.WritePropertyName(name); w.Write(value); } public static void WriteProperty(this JsonWriter w, string name, string value) { w.WritePropertyName(name); w.Write(value); } public static void WriteProperty(this JsonWriter w, string name, bool value) { w.WritePropertyName(name); w.Write(value); } public static void WriteProperty(this JsonWriter w, string name, double value) { w.WritePropertyName(name); w.Write(value); } public static void WriteProperty(this JsonWriter w, string name, float value) { w.WritePropertyName(name); w.Write(value); } } 
