版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/qq_36251118/article/details/88052668
实现思路:当滚动过的高度+一屏幕的高度 = 文档总高度,实现加载
//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;
}
//获取当前可视范围的高度
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);
}
//滚动事件触发
window.onscroll = function() {
if(getScrollTop() + getClientHeight() == getScrollHeight()) {
}
}