string josn;//json字符串

dynamic dyRS = JObject.Parse(strRS);/////转换dynamic
string dyDataStr = dyRS.data.ToString();
dynamic dyData = JObject.Parse(dyDataStr);
string flightListStr = dyData.flightList.ToString();

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string flightOptionListStr = dyData.flightOptionList.ToString();

JObject jObjectFOlist = JObject.Parse(flightOptionListStr);///转换JObject
string flightOptionListStrTMP = "";
foreach (var x in jObjectFOlist)//获取
{

//x.Key 获取键
flightOptionListStrTMP = x.Value.ToString();//获取值
}

//把值转换为对象，
FlightOption flightOption = JSONObject.FromJson<FlightOption>(flightOptionListStrTMP);

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