//动态类型dynamic，将JSON字符串转成对象
            var myJson = "{\"name\":\"小明\",\"address\":\"威海\"}";//json字符串

            var myObj = JsonConvert.DeserializeObject<dynamic>(myJson);//反序列化为 dynamic 对象

            var name = myObj.name.Value;//name="小明"

            var address = myObj["address"].Value;//address="威海"

            myObj.name="小张";
            name = myObj.name.Value;//name="小张"

            myObj.address = "上海";
            address = myObj.address.Value;//address="上海"