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/u012761510/article/details/80966242
<!DOCTYPE html>
<html>
<head>
<title>实现点击跳转到页面指定位置demo</title>
<link href="./normalize.css" rel="stylesheet" />
<style type="text/css">
.nav{
width: 1000px;
position: fixed;
top: 0;
left: 0;
}
.nav ul{
display: flex;
}
.nav li{
flex: 1;
margin: 0 10px;
background: blue;
text-align: center;
}
.nav li a.active{
border-bottom: 4px solid red;
}
.nav_content{
margin-top: 80px;
}
#s1{
height: 100px;
}
#s2{
height: 200px;
}
#s3{
height: 500px;
}
#s4{
height: 200px;
}
</style>
</head>
<body>
<div class="nav">
<ul>
<li><a href="#s1" class="active">s1</a></li>
<li><a href="#s2">s2</a></li>
<li><a href="#s3">s3</a></li>
<li><a href="#s4">s4</a></li>
</ul>
</div>
<div class="nav_content">
<div id="s1"><div>1</div></div>
<div id="s2">2</div>
<div id="s3">3</div>
<div id="s4">4</div>
</div>
<script type="text/javascript" src="./jquery.min.js"></script>
<script type="text/javascript">
function addActive(id){
var curren=$('.nav').find('.active');
if(id && curren.attr('href')!=id){
curren.removeClass('active');
$('.nav').find('[href='+id+']').addClass('active');
}
}
$('.nav li a').click(function(){
var href=$(this).attr('href');
var top=$(href).offset().top;
addActive(href);
$('html,body').animate({
scrollTop: top
},500);
return false;
})
if(window.location.hash){
addActive(window.location.hash);
var topScroll = $(window.location.hash).offset().top;
$("html,body").animate({scrollTop:topScroll},300);
}
$(window).scroll(function(){
var activeId='';
var top=$(document).scrollTop();
var div=$('.nav_content').children('div');
div.each(function(){
var _this=this;
var divTop=$(_this).offset().top;
if(top>divTop-100){
activeId='#' + $(_this).attr('id');
}else{
return false;
}
});
addActive(activeId);
});
</script>
</body>
</html>
<html>
<head>
<title>实现点击跳转到页面指定位置demo</title>
<link href="./normalize.css" rel="stylesheet" />
<style type="text/css">
.nav{
width: 1000px;
position: fixed;
top: 0;
left: 0;
}
.nav ul{
display: flex;
}
.nav li{
flex: 1;
margin: 0 10px;
background: blue;
text-align: center;
}
.nav li a.active{
border-bottom: 4px solid red;
}
.nav_content{
margin-top: 80px;
}
#s1{
height: 100px;
}
#s2{
height: 200px;
}
#s3{
height: 500px;
}
#s4{
height: 200px;
}
</style>
</head>
<body>
<div class="nav">
<ul>
<li><a href="#s1" class="active">s1</a></li>
<li><a href="#s2">s2</a></li>
<li><a href="#s3">s3</a></li>
<li><a href="#s4">s4</a></li>
</ul>
</div>
<div class="nav_content">
<div id="s1"><div>1</div></div>
<div id="s2">2</div>
<div id="s3">3</div>
<div id="s4">4</div>
</div>
<script type="text/javascript" src="./jquery.min.js"></script>
<script type="text/javascript">
function addActive(id){
var curren=$('.nav').find('.active');
if(id && curren.attr('href')!=id){
curren.removeClass('active');
$('.nav').find('[href='+id+']').addClass('active');
}
}
$('.nav li a').click(function(){
var href=$(this).attr('href');
var top=$(href).offset().top;
addActive(href);
$('html,body').animate({
scrollTop: top
},500);
return false;
})
if(window.location.hash){
addActive(window.location.hash);
var topScroll = $(window.location.hash).offset().top;
$("html,body").animate({scrollTop:topScroll},300);
}
$(window).scroll(function(){
var activeId='';
var top=$(document).scrollTop();
var div=$('.nav_content').children('div');
div.each(function(){
var _this=this;
var divTop=$(_this).offset().top;
if(top>divTop-100){
activeId='#' + $(_this).attr('id');
}else{
return false;
}
});
addActive(activeId);
});
</script>
</body>
</html>