请问name的值是什么意思，gender是什么。还有，明明我的type="radio",为什么能多选呢，而且只能选两个
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>form中的lable标签</title>
</head>
<body>
<form>
<label for="hobby">你对什么运动感兴趣：</label>
<br />
<label for="hobbyy">慢跑</label>
<input type="radio" name="gender" id="hobbyy" />
<br />
<label for="mountain">登山</label>
<input type="radio"name="gender" id="mountain"/>
<br/>
<label for="basketball">篮球</label>
<input type="radio" name="gender" id="basketball"
</form>
</body>
</html>
