layui table展示页表格中加入下拉选择框

{
                field: 'paid',
                sort: true,
                title: '付款状态',
                align: "center",
                templet:function (d) {
                    return '<select name="paid" class="sel_xlk" lay-filter="stateSelect"  lay-verify="required" data-state="' + d.paid + '" data-value="' + d.id + '" >' +
                        '        <option value="0">未付款</option>' +
                        '         <option value="1">已付款</option>' +
                        '    </select>';
                },
            },

form.on('select(stateSelect)', function (data) {//修改类型
        let id = data.elem.dataset.value; //当前数据的id
        let paid = data.elem.value; //当前字段变化的值
        // 传值：表单变化后的值传递到后台数据库进行实时修改，例如，根据id修改这条数据的状态。
        $.ajax({
            type: 'post',
            url: Feng.ctxPath+ '/******/*****', // ajax请求路径
            data: {
                id: id,
                paid: paid
            },
            success: function(data){
                layer.msg('修改成功');
                //执行重载
                //table.reload('bizInvoiceTable');
                //window.location.href = Feng.ctxPath + '/bizInvoice'
            }
        });
    });

done: function (res, curr, count) {
            //设置下拉框样式在表格之上 不会遮挡下拉框
            $(".layui-table-body").css('overflow','visible');
            $(".layui-table-box").css('overflow','visible');
            $(".layui-table-view").css('overflow','visible');

            var tableElem = this.elem.next('.layui-table-view');
            count || tableElem.find('.layui-table-header').css('overflow', 'auto');
            layui.each(tableElem.find('select[name="paid"]'), function (index, item) {
                var elem = $(item);
                elem.val(elem.data('state')).parents('div.layui-table-cell').css('overflow', 'visible');
            });
            form.render();//刷新表单

        }

/* 设置下拉框的高度与表格单元相同 */
   td .layui-form-select {
        margin-top: -10px;
        margin-left: -15px;
        margin-right: -15px;
    }