二：C#对象、集合、DataTable与Json内容互转示例；

public class people
{
        public string Name { get; set; }
        public int Age { get; set; }
        public DateTime Birthday { get; set; }
        public EnumGender Gender { get; set; }
        public Liststring> hobby{ get; set; }
}
public enum EnumGender
{
        woman,
        male
}

PeopleInfo p = new PeopleInfo();
p.Name = "李家村的二狗子";
p.Age = 30;
p.Birthday = DateTime.Now;
p.Gender = EnumGender.male;
p.Hobby = new Liststring> { "写Bug", "钓鱼", "看新闻联播" };

string json = JsonConvert.SerializeObject(p);
this.txtResult.Text = json;

string json = "{\"Name\":\"李家村的二狗子\",\"Age\":30,\"Birthday\":\"2019-01-12T17:55:39.8176013+08:00\",\"Gender\":1,\"Hobby\":[\"写Bug\",\"钓鱼\",\"看新闻联播\"]}";
            
PeopleInfo info = JsonConvert.DeserializeObject(json);

this.txtResult.Text = "名称：" + info.Name;

private void btnJsonDemo_Click(object sender, EventArgs e)
        {
            List list = new List();

            PeopleInfo p = new PeopleInfo();
            p.Name = "张三";
            p.Age = 30;
            p.Birthday = DateTime.Now;
            p.Gender = EnumGender.male;
            p.Hobby = new Liststring> { "写Bug", "钓鱼", "看新闻联播" };

            PeopleInfo p1 = new PeopleInfo();
            p1.Name = "李四";
            p1.Age = 30;
            p1.Birthday = DateTime.Now;
            p1.Gender = EnumGender.male;
            p1.Hobby = new Liststring> { "读书", "写字", "打游戏" };

            list.Add(p);
            list.Add(p1);

            string json = JsonConvert.SerializeObject(list);
            this.txtResult.Text = json;
        }

string json = @“{” “key1” “：” “value1” “，” “key2” “：” “value2” “}” ; 

  Dictionary values = JsonConvert.DeserializeObject >（json）;