????：<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <script src="../jquery-3.3.1.js" ></script> <style type=&
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="../jquery-3.3.1.js" ></script>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
ul{
list-style: none;
width: 150px;
height: 100px;
border: 1px solid black;
float: left;
position: absolute;
}
li{
border: 1px solid black;
height: 50px;
}
.content1,.content2{
width: 600px;
height: 600px;
border: 1px solid red;
/*position: absolute;*/
margin-left: 200px;
}
.show{
display: block;
}
.hide{
display: none;
}
</style>
</head>
<body>
<script type="text/javascript">
$(document).ready(function () {
$('.a1').click(function () {
$('.content1').removeClass('hide');
$('.content2').removeClass('show');
$('.content1').addClass('show');
$('.content2').addClass('hide');
})
$('.a2').click(function () {
$('.content1').removeClass('show');
$('.content2').removeClass('hide');
$('.content2').addClass('show');
$('.content1').addClass('hide');
})
})
</script>
<div>
<ul>
<li class="a1">第一個</li>
<li class="a2">第二個</li>
</ul>
<div class="content1 show">
第一個
</div>
<div class="content2 hide">
第二個
</div>
</div>
</body>
</html>