举个栗子，代码及注释如下

class Program
{
    static void Main(string[] args)
    {
        // 反射示例
        string strjson = "[{\"name\":\"deas\",\"str\":\"male\",\"age\":15,\"bol\":true,\"id\":\"49f6eeb9-6fe9-487f-80c0-2ef1946ce1c3\",\"dt\":\"2020-12-09T11:13:42.8016838+08:00\",\"ffr\":{\"xxj\":\"120\",\"bolxxj\":\"true\"}},{\"name\":\"qeer\",\"str\":\"uyiu\",\"age\":18,\"bol\":false,\"id\":\"cef445cc-ba64-423e-b8a8-2d99f53eaf23\",\"dt\":\"2020-12-09T11:13:42.8056737+08:00\",\"ffr\":{\"xxj\":\"330\",\"bolxxj\":\"false\"}},{\"name\":\"zcvc\",\"str\":\"nbbn\",\"age\":25,\"bol\":true,\"id\":\"751852e7-1d12-44c6-a1c8-0a23263db111\",\"dt\":\"2020-12-09T11:13:42.8056737+08:00\",\"ffr\":{\"xxj\":\"550\",\"bolxxj\":\"true\"}},{\"name\":\"efvv\",\"str\":\"tynm\",\"age\":26,\"bol\":false,\"id\":\"083678c5-4c36-48f2-ba2a-778aaacc433b\",\"dt\":\"2020-12-09T11:13:42.8056737+08:00\",\"ffr\":{\"xxj\":\"670\",\"bolxxj\":\"false\"}}]";
        List<Cler> clersList = JsonConvert.DeserializeObject<List<Cler>>(strjson);// 序列化JSON字符串
        foreach (Cler cl in clersList)// by 每个对象Cler循环
        {
            Cler cler = new Cler(cl.name, cl.str, cl.age, cl.bol, cl.id, cl.dt, cl.ffr);// 实例化 调用构造函数为变量赋值
            Type tcler = cler.GetType();// 获取当前实例的Type
            PropertyInfo[] pi_cler = tcler.GetProperties();// 取得public修饰的对象属性数组(就是有很多很多对象,每个对象为一个元素)
            foreach (PropertyInfo pi in pi_cler)// 循环取得每个元素的Type属性
            {
                Console.WriteLine();
                Console.WriteLine(pi.PropertyType.Name);// 字段类型 String/Int32/Boolean/Guid/DateTime/FFR
                Console.WriteLine(pi.Name);// 对象名
                Console.WriteLine(pi.GetValue(cler));// 对象的值
                if (pi.PropertyType.Name == "FFR")
                {
                    string ffrstr = JsonConvert.SerializeObject(pi.GetValue(cler));// 将FFR中的对象转换为JSON字符串
                    FFR ffrjson = JsonConvert.DeserializeObject<FFR>(ffrstr);// 再将JSON序列化为FFR对象,这样就将Object对象转换为了FFR对象(拆箱操作)
                    Console.WriteLine(ffrjson.xxj);// 取得FFR.xxj的值
                    Console.WriteLine(ffrjson.bolxxj);//FFR.bolxxj的值
                }
                Console.WriteLine();
            }
        }

        Console.ReadKey();
    }

    static string FunTtu(string str)
    {
        Console.WriteLine("线程ID:" + Thread.CurrentThread.ManagedThreadId.ToString());
        return "FunTtu-" + str;
    }
}

class Cler
{
    public string name { get; set; }
    public string str { get; set; }
    public int age { get; set; }
    public bool bol { get; set; }
    public Guid id { get; set; }
    public DateTime dt { get; set; }
    public FFR ffr { get; set; }

    public Cler(string str_name, string str_str, int str_age, bool str_bol, Guid str_id, DateTime str_dt, FFR str_ffr)
    {
        name = str_name;
        str = str_str;
        age = str_age;
        bol = str_bol;
        id = str_id;
        dt = str_dt;
        ffr = str_ffr;
    }
}

class FFR
{
    public int xxj { get; set; }
    public bool bolxxj { get; set; }
}