1   public class MacState
 2     {
 3         /// <summary>
 4         /// 请求状态
 5         /// </summary>
 6        public string success { get; set; }
 7         /// <summary>
 8         /// 错误信息
 9         /// </summary>
10        public string msg { get; set; }
11         public List<MacStateData> data { get; set; }
12         public List<YZ> YZ { get; set; }
13     }
14 
15   public class MacStateData {
16         /// <summary>
17         /// 设备名称
18         /// </summary>
19         public string macName { get; set; }
20         /// <summary>
21         /// 运行状态 运行停止（1/0）
22         /// </summary>
23         public string state { get; set; }
24 
25     }
26 
27    public class YZ {
28         /// <summary>
29         /// 姓名
30         /// </summary>
31         public string mName { get; set; }
32         /// <summary>
33         /// 年龄
34         /// </summary>
35         public string AGE { get; set; }
36     }

 1         //<summary>
 2         /// 组装json数组简易方法 不用Stringbuilder    实体类
 3         /// </summary>
 4         public static void GetMacState() {
 5             //
 6             MacState obj = new MacState();
 7             obj.success = "true";
 8             obj.msg = "未失败";
 9             //List集合存放对象
10             obj.data = new List<MacStateData>();//实例化json数组
11             for (int i = 0; i < 3; i++)
12             {
13                
14                 MacStateData objData = new MacStateData();
15                 objData.macName = "su";
16                 objData.state = "121212";
17                 obj.data.Add(objData); //添加JSON数组集合
18             }
19             
20             obj.YZ = new List<YZ>();//实例化json数组 
21             for (int i = 0; i < 3; i++)//for循环多次添加
22             {
23             YZ YZDATA = new YZ();
24             YZDATA.mName = "张三";
25             YZDATA.AGE = "13";
26             obj.YZ.Add(YZDATA);
27             }
28             string res = JsonConvert.SerializeObject(obj); //转JSON数组，演示用，下面讲方法使用
29             Console.WriteLine(res);
30             Console.Read();
31         }