jquery 遍历字典

$(function(){
             var data = {};
var successfn = function(jdata){
             /*var jdata = eval(jdata);*/
             $(".gridtable").empty();
             var _HTML="<tr >";
             
             console.log(jdata);
             for(var L1=0;L1<jdata.length;L1++){
               console.log(jdata[L1]);
               var newArr = jdata[L1];
               var i=1;
               $.each(newArr,function(key,val){
                 console.log('第'+i+'步');
                 console.log('keykeykey');