1 protected void Page_Load(object sender, EventArgs e)
 2         {
 3             List<List<string>> datalist = new List<List<string>>();
 4 
 5             for (int i = 1; i < 13; i++)
 6             {
 7                 List<string> list = new List<string>();
 8                 list.Add("id" + i);
 9                 list.Add("系统管理员");
10                 list.Add("/Admin/UserList");
11                 //省略...后面的就不加了
12                 datalist.Add(list);
13             }
14             Test test = new Test();
15             test.data = datalist;
16 
17             JavaScriptSerializer js = new JavaScriptSerializer();
18             string json = js.Serialize(test);
19         }
20 
21         public class Test
22         {
23             public List<List<string>> data{ get; set; }
24         }

var items = new
{
    data = new string[,] { 
        { "id1", "", "系统管理" },
        { "id2", "id1", "系统管理" }
    }
};
var json = JsonConvert.SerializeObject(items);