Question

js如何获得选中的单选按钮value值

Answer 1

$("input[type=radio]:checked").val()

测试：

<script language="javascript">

$(document).ready(function(){

alert($("input[type=radio]:checked").val())

});

</script>

<input type="radio" name="dio" value="111" checked />111

<input type="radio" name="dio" value="222" />222

Answer 2

<input type="checkbox" name="单选" />
<script>
alert(document.getElementsByTagName('input')[0].name)
</script>