asp.net核心3.1 HttpClient，Json序列化两次

using System;
using System.Net.Http;
using System.Threading.Tasks;

public class Program
{
    public static async Task Main(string[] args)
    {
        using (var httpClient = new HttpClient())
        {
            var response = await httpClient.GetAsync("https://api.example.com/data");
            var content = await response.Content.ReadAsStringAsync();
            
            // 处理响应内容
            Console.WriteLine(content);
        }
    }
}

using Newtonsoft.Json;

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public class Program
{
    public static void Main(string[] args)
    {
        var person = new Person { Name = "John", Age = 30 };

        // 对象序列化为Json字符串
        var json = JsonConvert.SerializeObject(person);
        Console.WriteLine(json);

        // Json字符串反序列化为对象
        var deserializedPerson = JsonConvert.DeserializeObject<Person>(json);
        Console.WriteLine(deserializedPerson.Name);
        Console.WriteLine(deserializedPerson.Age);
    }
}