使用C#为孤立JSON添加根密钥

using System.IO;
using Newtonsoft.Json;

string json = File.ReadAllText("data.json");
var jsonObject = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);

var newJsonObject = new Dictionary<string, object>();
newJsonObject.Add("rootKey", jsonObject);

string newJson = JsonConvert.SerializeObject(newJsonObject, Formatting.Indented);

File.WriteAllText("newData.json", newJson);