<input class='checkboxClick' type="checkbox"  data-fee ="150" />

 //获取input自定义属性var data = document.getElementsByClassName("checkboxClick")[i].getAttribute('data-fee');

<input class='checkboxClick' type="checkbox" name="fid[]" data-fee ="{$v.service_fee}" id="ID" value="{$v.id}" />// 复选框的改变$('.checkboxClick').on('change',function(){var num=0;var $allBox=$('input[type=checkbox]');var fee=0for(var i=0;i<=$allBox.length-1;i++){if($allBox.eq(i).is(':checked')==true){num+=1;var data = document.getElementsByClassName("checkboxClick")[i].getAttribute('data-fee');fee+=parseInt(data)}}// 已选人数$('.selectedDA').text(num);$('.feeBox').text(fee);})