主要代码：

 done: function (res, curr, count) {

                            $('th').css({ 'background-color': '#262626', 'color': 'white', 'font-weight': '500' });
                             
                            var that = this.elem.next(); res.data.forEach(function (item, index) {
                                //console.log(item.empName);item表示每列显示的数据
                                if (index % 2 == 0) {
                                    var tr = that.find(".layui-table-box tbody tr[data-index='" + index + "']").css('background-color', '#737373').addClass('addclass');
                                } else {
                                    var tr = that.find(".layui-table-box tbody tr[data-index='" + index + "']").css('background-color', '#b3b3b3').addClass('addclass');
                                }
                            })
                            },
                        text: {
                            none: '暂无相关数据' //默认：无数据。注：该属性为 layui 2.2.5 开始新增
                        },
                        id: 'order_list'
                    });

<script type="text/html" id="barDemo">
    <button type="button" class="layui-btn layui-btn-sm layui-btn-normal" lay-event='select'  style="background-color: #2e3338;"><i class="layui-icon">&#xe615;</i> 详情</button>
    @*<button type="button" class="layui-btn layui-btn-sm layui-btn-danger" lay-event='del'><i class="layui-icon">&#xe640;</i> 删除</button>*@
</script>