|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  |  | 
|  | window.onscroll = ()=>{ | 
|  |  | 
|  |    | 
|  |   var windowHeight = document.documentElement.clientHeight || document.body.clientHeight; | 
|  |  | 
|  | 	 | 
|  | 	var documentHeight = document.documentElement.scrollHeight || document.body.scrollHeight; | 
|  |  | 
|  | 	 | 
|  | 	var scrollTop = document.documentElement.scrollTop || document.body.scrollTop; | 
|  |        | 
|  | 	if ((windowHeight + scrollTop + 2) >= documentHeight) { | 
|  | 		console.log('页面滚动到达底部'); | 
|  | 	} | 
|  | } | 
|  |  | 
|  |  | 
|  | document.getElementsByClassName('rank_body')[0].getElementsByTagName('ul')[0].onscroll = (e)=>{ | 
|  |        | 
|  |   if(e.target.clientHeight + e.target.scrollTop + 2 >= e.target.scrollHeight){ | 
|  |     console.log('元素内部页面滚动到达底部'); | 
|  |   } | 
|  | } | 
|  |  | 
|  |  | 
|  | document.getElementsByClassName('rank_body')[0].getElementsByTagName('ul')[0].addEventListener("scroll", (e)=>{ | 
|  |  | 
|  |   if(e.target.clientHeight + e.target.scrollTop + 2 >= e.target.scrollHeight){ | 
|  |     console.log('元素内部页面滚动到达底部'); | 
|  |   } | 
|  | }, false); | 
|  |        | 
|  |  | 
|  |        | 
|  |  | 
|  | $(window).scroll(function() { | 
|  |  | 
|  |    | 
|  |   var w_h = parseFloat($(window).height()); | 
|  |        | 
|  | 	 | 
|  | 	var doc_h = $(document).height(); | 
|  |        | 
|  | 	 | 
|  | 	totalheight = w_h + parseFloat($(window).scrollTop()) + 2; | 
|  |        | 
|  | 	if (totalheight >= doc_h) { | 
|  | 		console.log('页面滚动到达底部'); | 
|  | 	} | 
|  | }); | 
|  |  | 
|  |  | 
|  | $('#showRankbox').scroll(function() { | 
|  |  | 
|  |    | 
|  |   var box_h = $('#showRankbox').height(); | 
|  |  | 
|  | 	 | 
|  | 	var box_doc_h = parseFloat($('#showRankbox').find(' > ul').height()); | 
|  | 	var $this = $(this); | 
|  | 	totalheight = box_h + parseFloat($this.scrollTop()); | 
|  |  | 
|  | 	if (totalheight + 2 >= box_doc_h) { | 
|  | 		console.log('元素内部页面滚动到达底部'); | 
|  | 	} | 
|  | }) |