选项卡数据遍历

返回的数据是数组,每条里还有子对象  也是数组，例如图：

  $.ajax({
        url:urlT + "/rest/video/queryAllCourses" ,
        type:"get",
        data:'',
        async:false, 
        success:function(data) { 
        //console.log(data);
             $.each(data.data, function (i, result) {                        
               var item = "<li class='listHeader'><a class='listTitle' groupid="+result.id+">"+result.title+"</a><ul class='listContent'>";                                    
                $.each(result.contentList, function (key, content) {       
                 item +="<li ><input type='checkbox' itemid="+content.id+" >"+content.title+"</li>";
                })       
                item +=" </ul></li>";                                    
                 $('.list').append(item);  
            });            

        },
        error:function(){
            alert("获取数据失败！")
        }