Asp.net_Webservice返回json

[WebMethod]
public List<PictureManager> LoadPictureOne()
{
dataDataContext context = new dataDataContext();
List<PictureManager> list = new List<PictureManager>();
try
{
List<PictureManager> li = context.PictureManager.Where(p => p.TypeId == 2 && p.IsShow == true).OrderByDescending(p => p.Id).Take(8).ToList();
foreach (PictureManager item in li)
{
PictureManager tb = new PictureManager();
tb.Id = item.Id;
tb.Name = item.Name;
tb.Picture = item.Picture;
tb.Price = item.Price;
tb.PriceInfo = item.PriceInfo;
tb.Remark = item.Remark;
list.Add(tb);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return list;
}

//加载图片1
function LoadPictureOne() {
$("#div1").html("");
var htmlInfo = "";
$.ajax({
type: "post",
contentType: "application/json;charset=utf-8",
url: "../../service/backstageService.asmx/LoadPictureOne",
data: "",
dataType: "json",
success: function (result) {
var data = eval(result.d);
$(data).each(function () {
htmlInfo += "<div class='moxin'><div ><img style=\"width:223px; height:217px;\" src='../../images/PictureManager/" + this.Picture + "' alt='" + this.Name + "' /></div><ul><li><p class='wenziqj'>" + this.Price + "</p></li><li><p class='wenzish'> " + this.PriceInfo + "</p><p class='wenzixia'>" + this.Name + "</p></li><li class='tuliji'   onclick='img_click(\"" + this.Name + "\")'><img src='../../images/images/qiangoguanniu.png' style='cursor:pointer' /></li></ul></div>";
});
$("#div1").html($.trim(htmlInfo));
},
error: function (err) { layer.alert("加载图片出错", 5); }
});
}

如果返回的 是单个对象：
result.d的值是："{"brxm":"aa","ys":"bb","ks":"cc","hm":"123","sj":"08:50"}"
eval("("+result.d+")")试一试。

[WebMethod]
public string GetCount()
{
string json = string.Empty;
try
{
using (dataDataContext context = new dataDataContext())
{
if (context.tb_ApplicationAward.Count() != 0)
{
int CountM = Convert.ToInt32(context.tb_ApplicationAward.Sum<tb_ApplicationAward>(p => p.scheduleLength));
if (CountM > 2000)
{
CountM = 2000;
}
int CountPeople = context.tb_ApplicationAward.Count();
return "{'CountM':" + CountM + ",'CountPeople':" + CountPeople + "}";
}
return "{\"CountM\":" + 0 + ",\"CountPeople\":" + 0 + "}";
}
}
catch (Exception)
{
return null;
}
}

function Loading() {
$.ajax({
type: "post",
contentType: "application/json;charset=utf-8",
url: "../../service/backstageService.asmx/GetCount",
data: "{}",
dataType: "json",
success: function (js) {
var obj = eval('(' + js.d + ')');
var CountM = obj.CountM;//总米数
count = CountM;
var CountPeople = obj.CountPeople;//总人数
//前台取得时候是用js.d来取