using System; namespace ETModel { public static class JsonHelper { public static string ToJson(object obj) { return MongoHelper.ToJson(obj); } public static T FromJson(string str) { return MongoHelper.FromJson(str); } public static object FromJson(Type type, string str) { return MongoHelper.FromJson(type, str); } public static T Clone(T t) { return FromJson(ToJson(t)); } } }