优化以下代码 layui.use(['form', 'table'], function () { var $ = layui.jquery, form = layui.form, table = layui.table; table.render({ cellHeight: 300, elem: '#demo', method:'post', url: "{:url('/manage/aboutuslist/aboutuslist/index')}", toolbar: '#toolbarDemo', defaultToolbar: ['filter', 'exports', 'print', { title: '提示', layEvent: 'LAYTABLE_TIPS', icon: 'layui-icon-tips' }], cols: [ [ {type: "checkbox", width: 50}, {field: 'id', width: 100, title: 'ID', unresize:true, sort: true}, {field: 'img_url', width: 400, title: '图片', templet:'<div> <img class="bianping" src="{{d.img_url}}"/></div>'}, {field: 'typeId', width: 150, title: '位置'}, {field: 'title', width: 180, title: '标题'}, {field: 'addtime', width: 180, title: '添加时间', templet:function (d){return layui.util.toDateString(d.addtime * 1000, "yyyy-MM-dd HH:mm")}}, { fixed: 'right', title: '操作', toolbar: '#barOp', width: "16%" } ] ], limits: [5, 10, 15, 20, 50, 100], limit: 5, first: "首页" , last: "尾页" , page: true, skin: 'line', }); }); table.on('tool(tab)', function (obj) { var data = obj.data.id; var mid = obj.id; parent.layer.open({ type: 2, title: '新增信息', amin: 4, shadeClose: true, shade: 0.8, area: ['53%', '60%'], content: "{:url('/manage/aboutuslist/aboutuslist/edit/id"+mid+"')}", end: function () { $(".layui-laypage-btn").click();//重新绑定数据，防止刷新出现闪屏效果。 } }); });

优化后的代码如下：

layui.use(['form', 'table'], function () {
    var $ = layui.jquery,
        form = layui.form,
        table = layui.table;

    table.render({
        cellHeight: 300,
        elem: '#demo',
        method: 'post',
        url: "{:url('/manage/aboutuslist/aboutuslist/index')}",
        toolbar: '#toolbarDemo',
        defaultToolbar: ['filter', 'exports', 'print', {
            title: '提示',
            layEvent: 'LAYTABLE_TIPS',
            icon: 'layui-icon-tips'
        }],
        cols: [
            [{
                    type: "checkbox",
                    width: 50
                },
                {
                    field: 'id',
                    width: 100,
                    title: 'ID',
                    unresize: true,
                    sort: true
                },
                {
                    field: 'img_url',
                    width: 400,
                    title: '图片',
                    templet: '<div> <img  class="bianping" src="{{d.img_url}}"/></div>'
                },
                {
                    field: 'typeId',
                    width: 150,
                    title: '位置'
                },
                {
                    field: 'title',
                    width: 180,
                    title: '标题'
                },
                {
                    field: 'addtime',
                    width: 180,
                    title: '添加时间',
                    templet: function (d) {
                        return layui.util.toDateString(d.addtime * 1000, "yyyy-MM-dd HH:mm")
                    }
                },
                {
                    fixed: 'right',
                    title: '操作',
                    toolbar: '#barOp',
                    width: "16%"
                }
            ]
        ],
        limits: [5, 10, 15, 20, 50, 100],
        limit: 5,
        first: "首页",
        last: "尾页",
        page: true,
        skin: 'line',
    });

    table.on('tool(tab)', function (obj) {
        var data = obj.data.id;
        var mid = obj.id;
        parent.layer.open({
            type: 2,
            title: '新增信息',
            amin: 4,
            shadeClose: true,
            shade: 0.8,
            area: ['53%', '60%'],
            content: "{:url('/manage/aboutuslist/aboutuslist/edit/id" + mid + "')}",
            end: function () {
                $(".layui-laypage-btn").click();
            }
        });
    });
});

主要是将代码格式化了，将缩进对齐，使得代码更易于阅读。同时，将逗号的放置方式统一，增加了代码的一致性。