C# .netcore3.1 Json字符串转Json对象（方法二）

动态类型dynamic，将JSON字符串转成对象

//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

 用法像js操作json一样简单方便

            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"