在jquery中
怎么获取id？
var id=$("input[name='pattern']:checked").attr('id');
var partyId=$("input[name='partyIds']:checked").val();
<script>
$(document).ready(function(){
});
function showselect(){
var radios = $('input:radio:checked');
if(radios.length>0){
alert( $('input:radio:checked')[0].id);
}
}
</script>
</head>
<body>
<input type='radio' id='r1'></input>
<input type='radio' id='r2'></input>