一、Json

 一、Json遍历模糊查询

 你没admin 所以这句话报错.

//1、写法
dynamic query = from user in jsonObject where (user.ToString().Contains("上海市")) select user;
//2、写法
var xx = jsonObject.Where(d => d["name"].ToString().Contains("上海市")).FirstOrDefault().Distinct();
//没有集合 就是null 你对null进行去重 能不错吗

　　

二、dynamic：动态类型简单用法，写法

class 动态创建数据
{
    //动态类型：本质感觉跟object的用法差不多，只是在执行的时候才知道数据类型
    public dynamic Dynamic()
    {
        //定义一个动态类型，作为返回值
        dynamic data = new ExpandoObject();
        List<dynamic> list = new List<dynamic>();
        dynamic model = new ExpandoObject();
        model.ID = 1;
        model.Name = "张三";
        list.Add(model);
        data.list1 = list;
        return data;
    }
 
    public object Object()
    {
        //定义一个动态类型，作为返回值
        object data = new object();
        List<object> list = new List<object>();
        object model = new object();
        model.ID = 1;
        model.Name = "张三";
        list.Add(model);
        data.list1 = list;
        return data;
    }
}

　　

三、DateTime

 

static void Main(string[] args)
        {

            string str = "{"Token":"ew0KICAiVXNlckNvZGUiOiAiWmFubHVld29ya19Vc2VyIiwNCiAgIlVzZXJQYXNzV29yZCI6ICJBRjMzOUJFNzhCOUI0NEJDQjc1QThENThBREJBNkM4RSIsDQogICJJcEFkZHJlc3MiOiAiMTAxLjEzMi42Ny4yNDIiLA0KICAiRXhwaXJ5RGF0ZSI6ICIyMDE5LTA5LTI4VDIwOjA4OjI0LjU1MzIzODYrMDg6MDAiDQp9","Success":true,"StatusCode":0,"Message":"登录成功","OverTime":"2019-09-28 20:08:24"}";
            dynamic data = JsonConvert.DeserializeObject(str);
            var a = data.GetType().Name; 

            var b = data.OverTime;
            var bb = b.GetType();

            var c = data["OverTime"];
            var cc = c.GetType();

            DateTime dateTime = DateTime.Parse(c);//这个会报错 

            //获取分钟
            DateTime dateTime1 = DateTime.Parse(data["OverTime"]);//这个正常  你们谁在知道怎么回事


        }