@using (Html.BeginForm())
    {
        <div>
            <input type="submit" name="action" value="添加" />
        </div>
    }
        public ActionResult Class(int page = 1,string action="", FormCollection collection=null)
        {
            if(action=="添加")
            {
                return Content("<script>alert('success!');history.go(-1);</script>");
            }
            else
            {
                return Content("<script>alert('failed!');history.go(-1);</script>");
            }
        }