点击添加按钮添加一条记录，点击删除按钮删除本条记录

<div class="addfee">
    <div><span class="add-btn">添加</div>
</div>

//添加删除费用,最多可添加4条   
        $(".add-btn").on("click", function() {
            var len = $(".addpolicy").length;
            var html = ‘<div class="add"><span class="delete-btn">删除</span></div>‘
            if (len >= 4) {
                alert(‘最多添加5条!‘);
                return;
            }
            $(".addfee").append(html);
           
        }); 

        $(document).on("click", ".delete-btn", function () {
            $(this).parents(‘.add‘).remove();                   
        });