解决方法
How to tell when you’re at the bottom of a page：
if ( document.documentElement.clientHeight +
$(document).scrollTop() >= document.body.offsetHeight )
{
// Display alert or whatever you want to do when you're
// at the bottom of the page.
alert("You're at the bottom of the page.");
}
当然,只要用户滚动,您都想要触发上述操作：
$(window).scroll(function() {
if ( document.documentElement.clientHeight +
$(document).scrollTop() >= document.body.offsetHeight )
{
// Display alert or whatever you want to do when you're
// at the bottom of the page.
alert("You're at the bottom of the page.");
}
});
Here is a jsFiddle example,当用户滚动到页面底部时,它会淡出“您完成！滚动到页首”链接.
参考文献：
