【jQuery】操作单选框 radio

    jQuery 操作单选框 radio：

<script language="javascript" src="jquery.js"></script>

<script language="javascript">$(document).ready(function(){$('input[name="check"]').click(function(){var radio = $('input[name="check"]').filter(':checked');if( radio.length ){var value = radio.val();alert( value );}});});</script>

<input type="radio" id="check" name="check" value="1" /> 1<input type="radio" id="check" name="check" value="2" /> 2<input type="radio" id="check" name="check" value="3" /> 3

说明：filter() 方法 - jQuery 遍历

    或者换个写法：

<script language="javascript">$(document).ready(function(){$('input[name="check"]').click(function(){var radio = $('input[name="check"]:checked').val();alert( radio );});});</script>