<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
nav {
height: 50px;
}
nav span {
margin: 0 5px;
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.show {
color: red;
}
</style>
</head>
<body>
<nav></nav>
<ul>
<li>
<strong>手机:</strong>
<a href="javascript:;">锤子T1</a>
<a href="javascript:;">锤子T2</a>
<a href="javascript:;">坚果U1</a>
<a href="javascript:;">锤子M1</a>
<a href="javascript:;">坚果Pro</a>
</li>
<li>
<strong>价格:</strong>
<a href="javascript:;">3200</a>
<a href="javascript:;">2600</a>
<a href="javascript:;">899</a>
<a href="javascript:;">2799</a>
<a href="javascript:;">2299</a>
</li>
<li>
<strong>屏幕:</strong>
<a href="javascript:;">399</a>
<a href="javascript:;">600</a>
<a href="javascript:;">800</a>
<a href="javascript:;">1200</a>
</li>
</ul>
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元素生成之后，先存入数组的对应位
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按照数组的顺序重新添加一遍元素
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