json.net c# -如何设置json字典键名？

using Newtonsoft.Json;

public class MyDictionary
{
    [JsonProperty("myKey")]
    public string MyValue { get; set; }
}

public class Program
{
    public static void Main()
    {
        MyDictionary dictionary = new MyDictionary()
        {
            MyValue = "Hello"
        };
        
        string json = JsonConvert.SerializeObject(dictionary);
        // 输出结果为：{"myKey":"Hello"}
        Console.WriteLine(json);
    }
}