<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
padding: 0;
margin: 0;
}
a {
text-decoration: none;
color: black;
}
.box {
width: 160px;
height: 30px;
border: 1px solid black;
margin: auto;
}
.box li {
float: left;
width: 40px;
height: 30px;
line-height: 30px;
text-align: center;
list-style: none;
position: relative;
}
.nav_1 .box1 {
display: none;
position: absolute;
}
.nav_1 .box1 li {
width: 40px;
height: 30px;
border-bottom: 1px solid black;
border-left: 1px solid black;
border-right: 1px solid black;
}
.nav_1 a {
display: inline-block;
width: 40px;
height: 30px;
}
</style>
<script src="../jQuery.mini.js"></script>
</head>
<body>
<div class="box">
<ul>
<li class="nav_1">
<p><a href=" ">我的</a ></p >
<ul class="box1">
<li>我的</li>
<li>我的</li>
<li>我的</li>
</ul>
</li>
<li class="nav_1">
<a href="javascript:;">我的</a >
<ul class="box1">
<li>我的</li>
<li>我的</li>
<li>我的</li>
</ul>
</li>
<li class="nav_1">
<a href="javascript:;">我的</a >
<ul class="box1">
<li>我的</li>
<li>我的</li>
<li>我的</li>
</ul>
</li>
<li class="nav_1">
<a href="javascript:;">我的</a >
<ul class="box1">
<li>我的</li>
<li>我的</li>
<li>我的</li>
</ul>
</li>
</ul>
</div>
<script>
$(function () {
$('.nav_1').mouseenter(function () {
$(this).children('ul').show(); //show显示元素
})
$('.nav_1').mouseout(function () {
$(this).children('ul').hide(); //show显示元素
})
})
</script>
</body>
</html>
你用错了吧 鼠标经过 和当鼠标指针穿过元素 不一样的
mouseover
