controller 中定义以下方法：

public JsonResult UpdateSingle(int id,string actionName,string actionValue)  
       {  
           var res = new JsonResult();  
           //var value = "actionValue";  
           //db.ContextOptions.ProxyCreationEnabled = false;  
           var list = (from a in db.Articles  
                       select new  
                       {  
                           name = a.ArtTitle,yy = a.ArtPublishTime  
                       }).Take(5);  
           //记得这里要select new 否则会报错：序列化类型 System.Data.Entity.DynamicProxies XXXXX 的对象时检测到循环引用。  
           //不select new 也行的加上这句 //db.ContextOptions.ProxyCreationEnabled = false;  
           res.Data = list;//返回列表  
  
           var name = "小华";  
           var age = "12";  
           var name1 = "小华";  
           var age1 = "12";  
           res.Data = new object[] { new { name,age },new { name1,age1 } };//返回一个自定义的object数组  
  
           var person = new { Name = "小明",Age = 22,Sex = "男" };  
           res.Data = person;//返回单个对象；  
  
           res.Data = "这是个字符串";//返回一个字符串,意义不大；  
  
           res.JsonRequestBehavior = JsonRequestBehavior.AllowGet;//允许使用GET方式获取，否则用GET获取是会报错。  
           return res;  
       }  

<a href="javascript:void(0);" onclick="javascript:upclick(this);">Click Me</a>  
<script type="text/javascript">  
    function upclick(o) {  
        var obj = $(o);  
        alert(obj);  
        $.ajax({          
            url: "/Articles/UpdateSingle?ran=" + Math.random(),type: "GET",dataType: "json",data: { id: obj.attr("id"),actionName: obj.attr("actionName"),actionValue: obj.attr("actionValue") },success: function (data) {  
//                if (data.result == "True") {  
//                    alert("修改成功！");  
//                }  
//                if (obj.attr("actionName") == "ArtVerify") {  
  
//                }  
                $(o).html(data[0].name);  
                obj.attr("actionValue",data[0].result);  
            }  
        })  
    }  
</script>  

protected void Page_Load(object sender,EventArgs e)  
        {  
            var customer = new customer { name = "李华",sex = "男" };  
            var customer1 = new customer { name = "小芳",sex = "女" };  
            var li = new List<customer>();  
            li.Add(customer);  
            li.Add(customer1);  
            var list = Newtonsoft.Json.JavaScriptConvert.SerializeObject(li);  
            var tt = "[{\"name\":\"李华\",\"sex\":\"男\"},{\"name\":\"小芳\",\"sex\":\"女\"}]";  
            //new Newtonsoft.Json.JsonSerializer()..(customer);  
            Response.Write(tt);  
            Response.End();  
        }  
  
        public class customer  
        {  
            public string name { get; set; }  
            public string sex { get; set; }  
        }  

<p>  
        <a href="javascript:void(0)" onclick="javascript:getJsonData();">GetJsonData</a>  
    </p>  
    <div id="dataDiv">  
        ggg  
    </div>  
    <script type="text/javascript">  
        function getJsonData() {  
            var str = "";  
            $.getJSON("/Json.aspx",function (data) {  
                var tt = "";  
                $.each(data,function (k,v) {  
                    $.each(v,function (kk,vv) {  
                        tt += kk + "：" + vv + "<br/>";  
                    });  
                });  
                $("#dataDiv").html(tt);  
            });  
        }  
    </script>