abstrakt：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <script type="text/javascript" src="jquery-3.3.1.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="jquery-3.3.1.js"></script>
<title>Document</title>
<style type="text/css">
*{margin: 0px;padding: 0px;}
.menu{width: 700px;height: 40px;background-color: #000;margin:0px auto;border-radius: 5px;position: relative;;}
ul{list-style: none;}
ul li{color:#fff;float: left;width: 100px;height: 40px;line-height: 40px;text-align: center;cursor: pointer;}
.block{width: 100px;height: 5px;background-color: blue;position: absolute;top:35px;}
</style>
<script type="text/javascript">
$(document).ready(function () {
$("li").hover(function(){
$x = parseInt($(this).attr('name'))*100;
$(".block").stop().animate({left:$x+'px'},300);
},function(){
$(".block").stop().animate({left:"0px"},300)
})
})
</script>
</head>
<body>
<div>
<ul>
<li name = "0">首頁</li>
<li name = "1">視頻教程</li>
<li name = "2">社區(qū)問答</li>
<li name = "3">編程詞典</li>
<li name = "4">手冊下載</li>
<li name = "5">工具下載</li>
<li name = "6">菜鳥學(xué)堂</li>
</ul>
<div></div>
</div>
</body>
</html>
學(xué)到本階段并完成jQuery對頁面操作的各種常用功能，感覺已算入門，往后階段還需更深入的學(xué)習(xí)爭取把jQuery強(qiáng)大的功能更多的運用到實現(xiàn)生活工作中
Korrigierender Lehrer：韋小寶Korrekturzeit：2018-12-09 09:11:50
Zusammenfassung des Lehrers：不錯不錯！這次想實現(xiàn)我們網(wǎng)站的導(dǎo)航??！很漂亮！