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 += "" + value.name + " " + value.id + "";
         x += trs;
     });

     $("#project").append(x);