jquery jason代码片段

<script type="text/javascript">
    $(function () {

                $("#btnOK").click(function () {
                    $.ajax({
                        type: "post",   //访问WebService使用Post方式请求                  
                        //contentType: "application/json",
                        dataType: "json",
                        url: "/Application/WenDaHandler.ashx",
                        data: {type:"g"},
                        error: function (XMLHttpRequest, textStatus, errorThrown) { alert(errorThrown); },

                        success: function (data, textStatus) {
                            if (data != null) {
                                var con = "";
                                var tb = "<Table>";
                                for (var i = 0; i < data.length; i++) {
                                    tb += "<tr><td>" + data[i].UserName + "提问:" + data[i].PostTitle + "十分钟前" + data[i].LastReplyLink+ "</td></tr>";
                                }
                               // alert(tb);
                                tb = tb + "</table>";
                                $("#divContent").html(tb);
                            }
                            else {
                                alert(textStatus);
                                alert("msgisnull");
                            }
                        }
                    });
                });

                $("#btnOK").click(function () {
                    $.getJSON("/Application/WenDaHandler.ashx", { type: "g" }, function (arrs) {

                        var tb = "<Table>"; alert(tb);
                        $.each(arrs, function (i, item) {
                            tb += "<tr><td>" + item.UserName + "提问:" + item.PostTitle + "十分钟前" + item.LastReplyLink + "</td></tr>";
                        });

                        tb += "</Table>";
                        $("#divContent").html(tb);

                    });
                });

    }); 
</script>