js 循环读取 json的值

$.ajax({
url: "EventHandler/Handle.ashx?time=" + Math.random(),
type: "get",
data: { action: "Gettablelist" },
success: function (data) {
alert(data);
var items = eval('(' + data + ')');
$(items).each(function (i) {
alert(items[i].TNAME);
});
}
});