1.html页面:
<body onload="index_roll()"> ... </body>
2.js
<script type="application/javascript"> //获取滚动条当前的位置 function getScrollTop() { var scrollTop = 0; if (document.documentElement && document.documentElement.scrollTop) { scrollTop = document.documentElement.scrollTop; } else if (document.body) { scrollTop = document.body.scrollTop; } return scrollTop; };
//获取当前可是范围的高度 function getClientHeight() { var clientHeight = 0; if (document.body.clientHeight && document.documentElement.clientHeight) { clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight); } else { clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight); } return clientHeight; }; //获取文档完整的高度 function getScrollHeight() { return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight); };
var num=1; //滚动加载 function index_roll(){ window.addEventListener(‘scroll‘, function(){ if (getScrollTop() + getClientHeight() >= (getScrollHeight()-10)) { //要执行的方法 console.log("打印"+num); num++; } }) } </script>