JQuery中根据表单元素动态拼接json 字符串

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript" src="/scripts/jquery/jquery-1.10.2.min.js"></script>
    <script type="text/javascript">
        $(function () {

            var jsonObj = {};
            jsonObj.a = "aaaa";
            var $input = $("input[id^=\'List_\']");
            $input.each(function () {

                var id = $(this).attr("id").replace("List_", "");
                jsonObj[id] = "ccccc"; //$(this).val();
            })

            var str = JSON.stringify(jsonObj);

            alert(str);


        })
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
     
     <input id="List_nick" value="abc" />
          <input id="List_keyword" value="keyword" />
    </div>
    </form>
</body>
</html>

alert 效果：{"a":"aaaa","nick":"ccccc","keyword":"ccccc"}

后台可以使用NewTonJson.net 接收json字符串