一、dynamic

一、dynamic使用：

从一直使用动态类型写接口 返回动态类型出现情况

1、返回接口每次不知道包含那些列（实体类解决）

2、操作的数据类型 不可知（参与数值计算-实体类解决明确类型）

Dynamic 真不适合解决

        static void Main(string[] args)
        {
            string a = "{"CaseId":"dae908a9-e28d-4e3e-be78-fa8c7ce1afaa","DivisionId":"310112114","Address":"","UnitPrice":"0","TotalPrice":"0","QueryDate":"2019/7/9 8:59:39","AvgUnitPrice":"0","AvgPrice":"0","MaxPrice":"0","MinPrice":"0","MangerPrice":"0","Liveness":"1","TotalCellNumber":"0","QueryCount":"0","ReturnCode":"-1","Remark":"楼盘不可估","EndDate":"2019/01/01 0:00:00","ConstructionName":"","ConstructionAlias":"","BuildingName":"","HouseName":"","PropertyType":"","QuotationCount":"0"}";
            string b = "{"CaseId":"b1a9f1ea-686c-4c95-9bc8-a23737ac715c","DivisionId":"310109014","Address":"虹口区临平北路60弄","UnitPrice":"55676","TotalPrice":"7259594","QueryDate":"2019/7/9 10:37:52","AvgUnitPrice":"55676","AvgPrice":"55676","MaxPrice":"62914","MinPrice":"46891","MangerPrice":"0.9","Liveness":"3","TotalCellNumber":"631","QueryCount":"0","ReturnCode":"1","Remark":"估价成功","EndDate":"1997/01/01 0:00:00","ConstructionName":"临平北路60弄","ConstructionAlias":"银欣花苑","BuildingName":"","HouseName":"","PropertyType":"","QuotationCount":"34"}";
            dynamic aa = JsonConvert.DeserializeObject(a);
            dynamic bb = JsonConvert.DeserializeObject(b);
            var s = aa.GetType().Name;//JObject 
            //当值是'0' 输出  UnitPrice:'0' 与UnitPrice:0 区别   得出结果: 没有区别 输出都是{0}Value对象  判断0无区分  
            if (aa["UnitPrice"] != 0)
            {
                Console.Write("不等于0");///判断是否输出值
            }
            else
            {
                Console.Write("等于0");
            }
            if (bb["UnitPrice"] != 0)
            {
                Console.Write("不等于0");///判断是否输出值
            }
            else
            {
                Console.Write("等于0");
            }

        }

    }