<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>单选和复选</title>
</head>
<body>
</form>
<h4>单选:性别</h4>
<form>
<label value="radio">男</label>
<input name="sex" value="male" id="boy" type="radio"><br>
<label value="radio1">女</label>
<input name="sex" value="female" id="girl" type="radio">
</form>