代码编辑器：
x
1
2
<meta charset="utf-8">3
<link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> 4
<style>5
ul 6
{7
list-style:square url("/static/i/css/sqpurple.gif");8
}9
</style>10
<ul>11
<li>Coffee</li>12
<li>Tea</li>13
<li>Coca Cola</li>14
</ul>15
<footer>简单教程，简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>16