json解析
需引入Newtonsoft.Json
JObject result= (JObject)JsonConvert.DeserializeObject(str);
int number = Convert.ToInt32(result["AccessControllerEvent"]["serialNo"]);
需引入Newtonsoft.Json
JObject result= (JObject)JsonConvert.DeserializeObject(str);
int number = Convert.ToInt32(result["AccessControllerEvent"]["serialNo"]);