ajax获得json对象数组 循环输出数据

var obj=    [{id: 1, pId: 0, name: "采购商品", open: true}, {id: 2, pId: 1, name: "雨伞2", open: true}, {id: 2, pId: 1, name: "雨伞2", open: true}, {id: 2, pId: 1, name: "雨伞2", open: true}];var x='';     $.each(obj, function (n, value) {       //  alert(n + ' ' + value);         var trs = "";         trs += "<tr><td>" + value.name + "</td> <td>" + value.id + "</td></tr>";         x += trs;     });     $("#project").append(x);