C#实现将类的内容写成JSON格式字符串的方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//需要引用 Newtonsoft.Json.dll
using Newtonsoft.Json;
namespace JsonTest
{
 class Program
 {
  /// <summary>
  /// 人员类
  /// </summary>
  public class Person
  {
   public string name; //姓名
   public int age; //年龄
   public bool sex_is_male; //性别
   public struct Partner //伙伴
   {
    public string partner_name; //伙伴姓名
    public int partner_age; //伙伴年龄
    public bool partner_sex_is_male; //伙伴性别
   }
   public Partner partner;
   public string[] achievement; //成就
  }
  static void Main(string[] args)
  {
   //设置一个Person类
   Person p = new Person();
   p.name = "Tsybius";
   p.age = 23;
   p.sex_is_male = true;
   p.partner.partner_name = "Galatea";
   p.partner.partner_age = 21;
   p.partner.partner_sex_is_male = false;
   p.achievement = new string[] { "ach1","ach2","ach3" };
   //直接输出
   Console.WriteLine("Formatting.None:");
   string json1 = JsonConvert.SerializeObject(p);
   Console.WriteLine(json1 + "n");
   //缩进输出
   Console.WriteLine("Formatting.Indented:");
   string json2 = JsonConvert.SerializeObject(p,Formatting.Indented);
   Console.WriteLine(json2 + "n");
   Console.ReadLine();
  }
 }
}