之前没留档,时间太久忘记了遇到又琢磨半天 尤其是原生的。就此记录下 $('#滑动容器ID').scroll(function(event) { var scrollTop = event.currentTarget.scrollTop; var scrollHeight = event.currentTarget.scrollHeight; var clientHeight =event.currentTarget.clientHeight; if(scrollTop+clientHeight >=scrollHeight) { $('.js-purchase-btn').removeClass('disabled'); } });