<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>js改变标签属性</title>
<link rel="stylesheet" href="css/bootstrap-theme.css" />
<link rel="stylesheet" href="css/bootstrap-theme.min.css" />
<link rel="stylesheet" href="css/bootstrap.css" />
<link rel="stylesheet" href="css/bootstrap.min.css" />
<style type="text/css">
ul{
list-style: none;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-sm-3">
<div class="panel panel-primary">
<div class="panel-heading">
<p>左侧菜单</p>
</div>
<div class="panel-body">
<ul>
<li>
<p onclick="dakai('eat');">关于吃</p>
<ul id="eat" style="display: none;">
<li>鸡丝炒肉</li>
<li>糖醋里脊</li>
<li>红烧狮子头</li>
<li>酱爆茄子</li>
</ul>
</li>
<li>
<p onclick="dakai('wan');">关于玩</p>
<ul id="wan" style="display: none;">
<li>联盟</li>
<li>守望</li>
<li>吃鸡</li>
<li>天刀</li>
</ul>
</li>
<li>
<p onclick="dakai('le');">关于乐</p>
<ul id="le" style="display: none;">
<li>paty</li>
<li>聚会</li>
<li>旅游</li>
<li>爬山</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript">
function dakai(obj) {
var o = document.getElementById(obj);
//if判断obj对象的属性状态
if(o.style.display == "none") {
//改变标签属性
o.style.display = "block";
} else {
o.style.display = "none"
}
}
</script>
</body>
</html>
<html>
<head>
<meta charset="UTF-8">
<title>js改变标签属性</title>
<link rel="stylesheet" href="css/bootstrap-theme.css" />
<link rel="stylesheet" href="css/bootstrap-theme.min.css" />
<link rel="stylesheet" href="css/bootstrap.css" />
<link rel="stylesheet" href="css/bootstrap.min.css" />
<style type="text/css">
ul{
list-style: none;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-sm-3">
<div class="panel panel-primary">
<div class="panel-heading">
<p>左侧菜单</p>
</div>
<div class="panel-body">
<ul>
<li>
<p onclick="dakai('eat');">关于吃</p>
<ul id="eat" style="display: none;">
<li>鸡丝炒肉</li>
<li>糖醋里脊</li>
<li>红烧狮子头</li>
<li>酱爆茄子</li>
</ul>
</li>
<li>
<p onclick="dakai('wan');">关于玩</p>
<ul id="wan" style="display: none;">
<li>联盟</li>
<li>守望</li>
<li>吃鸡</li>
<li>天刀</li>
</ul>
</li>
<li>
<p onclick="dakai('le');">关于乐</p>
<ul id="le" style="display: none;">
<li>paty</li>
<li>聚会</li>
<li>旅游</li>
<li>爬山</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript">
function dakai(obj) {
var o = document.getElementById(obj);
//if判断obj对象的属性状态
if(o.style.display == "none") {
//改变标签属性
o.style.display = "block";
} else {
o.style.display = "none"
}
}
</script>
</body>
</html>
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