C#- JSON的操作

 读，删，修改JSON

            string jsonPath = System.Windows.Forms.Application.StartupPath + "\Data\probeData.json";
            string jsonString = File.ReadAllText(jsonPath);

            JObject obj;
            if (jsonString.Trim() == "")
                obj = new JObject();
            else
                obj = JObject.Parse(jsonString);

            JObject jArray = new JObject();

            JObject newObj = new JObject(
                    new JProperty("name", "5L64-0.8x10-C18"),
                    new JProperty("custom", 1.1),
                    new JProperty("freq", 2.1)
                );

            JObject newObj2 = new JObject(
                    new JProperty("name", "5L64-0.8x10-C18"),
                    new JProperty("custom", 1.3),
                    new JProperty("freq", 2.2)
                );

            jArray.Add("aaa4", newObj);
            jArray.Add("aaa6", newObj2);


            obj.Add("probe", jArray);




            //--------------------删除--------------------
            //JObject tokeselect = obj.SelectToken("probe") as JObject;
            //JObject tokeselect2 = tokeselect.SelectToken("aaa4") as JObject;
            ////tokeselect.Remove("aaa4");
            //tokeselect2.Remove("name");
            //--------------------删除--------------------

            //--------------------修改--------------------
            obj["probe"]["aaa4"]["name"] = "ccc123";

            jsonString = Convert.ToString(obj);
            System.Diagnostics.Trace.WriteLine(jsonString);

 遍历JSON

 string jsonPath = System.Windows.Forms.Application.StartupPath + "\global\probe.json";
            bool isExist = FileHelper.IsExistFile(jsonPath);
            JObject JObj;
            if (isExist)
            {
                string jsonString = File.ReadAllText(jsonPath);
                if (jsonString.Trim() == "")
                    JObj = new JObject();
                else
                    JObj = JObject.Parse(jsonString);

                 string str = JObj["probe"].ToString();

                //JArray jar = JArray.Parse(str);
                //for (int i = 0; i < jar.Count; i++)
                //{
                //    JToken jt = JToken.Parse(jar[i].ToString());
                //    foreach (JProperty jp in jt)
                //    {
                //        string name = jp.Name;
                //    }
                //}


                JToken jt = JToken.Parse(str);
                foreach (JProperty jp in jt)
                {
                    string name = jp.Name;
                    JObject obj2 = JObject.Parse(jp.Value.ToString());
                    string xxx = obj2["name"].ToString();
                }

            }

JSON文件：

{
  "probe": {
    "aaa4": {
      "name": "ccc123",
      "custom": "1",
      "freq": "23",
      "dist": "33",
      "delay": "11",
      "date": "2021-08-21"
    },
    "aaa6": {
      "name": "ccc111",
      "custom": "2",
      "freq": "13",
      "dist": "33",
      "delay": "31",
      "date": "2021-08-22"
    }
  }
}