使用NewtonSoftJson获取C#中某个JSON的所有子项

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

string json = "{'name':'John','age':30,'city':'New York'}";
JObject obj = JObject.Parse(json);

void TraverseJObject(JObject obj)
{
    foreach (var property in obj.Properties())
    {
        Console.WriteLine("Key: " + property.Name);

        if (property.Value.Type == JTokenType.Object)
        {
            TraverseJObject((JObject)property.Value);
        }
        else if (property.Value.Type == JTokenType.Array)
        {
            TraverseJArray((JArray)property.Value);
        }
        else
        {
            Console.WriteLine("Value: " + property.Value);
        }
    }
}

void TraverseJArray(JArray array)
{
    foreach (var item in array)
    {
        if (item.Type == JTokenType.Object)
        {
            TraverseJObject((JObject)item);
        }
        else if (item.Type == JTokenType.Array)
        {
            TraverseJArray((JArray)item);
        }
        else
        {
            Console.WriteLine("Value: " + item);
        }
    }
}

TraverseJObject(obj);