<script type="text/javascript" src=http://www.mamicode.com/"jquery-1.9.1.js"></script>    <script type="text/javascript">        function test() {            $.ajax({                type: "get",                cache: false,                url: "../../ajax/Task.aspx",                data: ‘id =1‘, // URL后面参数                success: function (json) {                    json = eval("(" + json + ")");                    $.each(json, function (i, item) {                                                alert(parseInt(item.iname), parseInt(item.iid));                    });                },                error: function (msg) {                    alert("错误：" + msg);                }            });        }    </script>

后台代码:public void ProcessRequest(HttpContext context)//只是大概个例子 为了学习{        context.Response.ContentType = "application/json";        string[] Arraya = new string[] { "张三", "李四", "王二", "赵五" };        string returns = "";        returns = "{\"people\":[";        for (int i = 0; i < Arraya.Length; i++)        {            returns += "[{\"iname\":\"" + Arraya[i] + "\",\"iid\":\"001\"}]" + (i != (Arraya.Length - 1) ? "," : "");        }        returns += "]};";        context.Response.Write(returns);//返回之后 就是上面js里直接定义的json格式    }