<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>左侧菜单</title>
<style>
.outer{
height: 1000px;
width: 100%;
}
.menu{
float: left;
background-color: beige;
width: 30%;
height: 500px;
}
.content{
float: left;
background-color: red;
width: 70%;
height: 500px;
}
.title{
background-color: aquamarine;
line-height: 40px;
}
.hide{
display: none;
}
</style>
</head>
<body>
<div class="outer">
<div class="menu">
<div class="item">
<div class="title" onclick="show(this)">菜单一</div>
<div class="con">
<div>111</div>
<div>111</div>
<div>111</div>
</div>
</div>
<div class="item">
<div class="title" onclick="show(this)">菜单二</div>
<div class="con hide">
<div>222</div>
<div>222</div>
<div>222</div>
</div>
</div>
<div class="item">
<div class="title " onclick="show(this)">菜单三</div>
<div class="con hide">
<div>333</div>
<div>333</div>
<div>333</div>
</div>
</div>
</div>
<div class="content"></div>
</div>
<script src="/static/jquery.min.js"></script>
<script>
function show(self) {
$(self).next().removeClass('hide');
$(self).parent().siblings().children('.con').addClass('hide');
}
</script>
</body>
</html>