1、添加引用

2、添加命名空间

using System.Web;using System.Web.Script.Serialization;

3、

OpenFileDialog fileDialog = new OpenFileDialog();            fileDialog.Multiselect = true;            fileDialog.Title = "请选择文件";            fileDialog.Filter = "(*.txt)|*.txt";            if (fileDialog.ShowDialog() == DialogResult.OK)             {                string file = fileDialog.FileName;                string text = System.IO.File.ReadAllText(file, Encoding.Default);                     JavaScriptSerializer js = new JavaScriptSerializer();                Dictionary
     
       dic = js.Deserialize
      
       
        >(text);                                foreach (object key in dic.Keys)                {                    int x = Convert.ToInt16(key);                    int y = Convert.ToInt16(dic[key]);                    point pt = new point(x, y);                    pl.Add(pt);                }                Point_databind(pl);             }
       
      
     

使用JObject

1、添加命名空间

using Newtonsoft.Json.Linq;

2、

var obj = JObject.Parse(text);