<style type="text/css">
    #left {width:200px; min-height:500px;border:1px solid #ccc;float:left;}
    #right { width:740px;min-height:500px;border:1px solid #ccc;float:left;margin-left:10px;}
</style>
<div id="left">
    <ul>
        <li>@Ajax.ActionLink("news title a", "Contents",new{id=1}, new AjaxOptions {HttpMethod="Post",InsertionMode= InsertionMode.Replace, UpdateTargetId="news_content" })</li>
        <li>@Ajax.ActionLink("news title b", "Contents",new{id=2}, new AjaxOptions {HttpMethod="Post",InsertionMode= InsertionMode.Replace, UpdateTargetId="news_content" })</li>
    </ul>
</div>
<div id="right">
    <div id="news_content"></div>
</div>

  [HttpPost]
        public ActionResult Contents(int? id)
        {
            IList<string> list1 = new List<string>
            {
                "a news 1 title",
                "a news 2 title",
                "a news 3 title",
                "a news 4 title",
                "a news 5 title"
            };
            IList<string> list2 = new List<string>
            {
                "b news 1 title",
                "b news 2 title",
                "b news 3 title",
                "b news 4 title",
                "b news 5 title",
                "b news 6 title",
                "b news 7 title"
            };
            var model = list1;
            if (id != 1)
            {
                model = list2;
            }
           
            return PartialView(model);
        }


这个只是从后台取数据 为啥不用GET 用POST？