1.html写法:
<div id="d-top" style="display: block;">
<a id="d-top-a" href="#" title="回到顶部">
<img src="http://static.blog.csdn.net/images/top.png" alt="TOP"></a>
</div>
2.js写法:
$(function(){
var d_top=$('#d-top');
document.onscroll=function(){
var scrTop=(document.body.scrollTop||document.documentElement.scrollTop);
if(scrTop>500){
d_top.show();
}else{
d_top.hide();
}
}
$('#d-top-a').click(function(){
scrollTo(0,0);
this.blur();
return false;
});
});
js实现页面回到顶部方法
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转载自blog.csdn.net/fzy629442466/article/details/84785499
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