JQuery的hover監聽事件的使用
參考地址：
https://www.runoob.com/jquery/event-hover.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>hover監聽事件</title>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<div>
<p class="sort">計算機</p>
<p class="sort">網絡工程</p>
<p class="sort">Java</p>
</div>
<script>
$(document).ready(function(){
$(".sort").hover(function(){
$(this).css("background-color","yellow");
},function(){
$(this).css("background-color","white");
});
});
</script>
</body>
</html>