jquery后加Dom绑定事件

$('#musicCategoryListContainer').on('click', '.musicCategoryItem', function () {

                    $(this).siblings().removeClass("musicCategoryChecked");

                    $(this).addClass("musicCategoryChecked");

                    //alert($(($(this).find(".data"))[0]).attr("ItemId"));

                });

　　

<ul class="site-doc-icon site-doc-anim margin15" id="musicCategoryListContainer">

            <!--<li class="musicCategoryChecked musicCategoryItem">

                <div class="layui-anim" data-anim="layui-anim-scaleSpring">弹簧式放大</div>

                <div class="code">layui-anim-scaleSpring</div>

            </li>-->

        </ul>