jquery通过attr取html里自定义属性原来这么方便啊

<script type="text/javascript">
function fangGouWuChe(obj) { //放入购物车
  var sMat = $(obj).parent().parent().parent().parent().attr("material");
  var sPrice = $(obj).parent().parent().find(‘em[class="sale-price"]‘).text();
  var sCount = "1";
  return addToCartRun(sMat, sPrice, sCount);
}
</script>