<script type="text/javascript">
function doTest(){
var value = $("input[name='dizhi'][type='radio']:checked").val();//获得选中项的值
$('#a1').attr('href','shoppeisong.php?addid='+value+'');
}
</script>
要取的INPUT 标签<input name="dizhi" type="radio" id="dizhi" onclick="doTest()" value="<?php echo $rsaddress['id'];?>" />
赋值到
<a id="a1" href="" class="bt" onclick="xx()"> 下一步 </a>