<html>
<body>
<form action="/example/html/form_action.asp" method="get">
<input type="radio" name="sex" checked value="male" /> Male<br />
<input type="radio" name="sex" value="female" /> Female<br />
<input type="submit" value="Submit" />
</form>
<p>请单击确认按钮，输入会发送到服务器上名为 "form_action.asp" 的页面。</p>
</body>
</html>