简单教程
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代码编辑器：
<!DOCTYPE html> <meta charset="utf-8"> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <style> input:checked { height: 50px; width: 50px; } </style> <form action=""> <input type="radio" checked="checked" value="male" name="gender" /> Male<br> <input type="radio" value="female" name="gender" /> Female<br> <input type="checkbox" checked="checked" value="Bike" /> I have a bike<br> <input type="checkbox" value="Car" /> I have a car </form> <footer>简单教程，简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果：