初始化文件列表

「layui」上传文件综合实例初始化文件列表
选择需要上传的文件列表

「layui」上传文件综合实例选择需要上传的文件列表
上传之后清空或者预览

「layui」上传文件综合实例上传之后清空或者预览
在线预览上传的文件

「layui」上传文件综合实例在线预览上传的office文件
代码源码：

<!DOCTYPE html>
<html lang="zh">
<head><meta charset="UTF-8"><title>上传文件综合实例</title><meta name="renderer" content="webkit"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"><link rel="stylesheet" href="/resource/admin/layui/css/layui.css" media="all">
</head>
<body>
<div class="layui-container"><fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;"><legend>文件列表</legend></fieldset>

    <div class="layui-upload"><button type="button" class="layui-btn layui-btn-normal" id="testList">选择多文件</button><div class="layui-upload-list"><table class="layui-table"><thead><tr><th>文件名</th><th>大小</th><th>进度</th><th>状态</th><th>操作</th></tr></thead><tbody id="demoList"></tbody></table></div><button type="button" class="layui-btn" id="testListAction">开始上传</button></div>
</div>
<script src="/resource/layui/src/layui.js"></script>
<script>
    layui.use(['form', 'layer', 'upload', 'element'], function () {
        let $ = layui.jquery
            , layer = layui.layer
            , upload = layui.upload
            , element = layui.element;

        //多文件列表示例let demoListView = $('#demoList')
            , uploadListIns = upload.render({
            elem: '#testList'
            , url: 'api/upload.php'
            , accept: 'file'
            , multiple: true
            , auto: false
            , bindAction: '#testListAction'
            , progress: function (n) {
                layer.render();
                console.log("进度：" + n);
                let percent = n + '%'; //获取进度百分比
                element.progress('progressDemo', percent); //可配合 layui 进度条元素使用
            }
            , choose: function (obj) {
                let files = this.files = obj.pushFile(); //将每次选择的文件追加到文件队列//读取本地文件
                obj.preview(function (index, file, result) {
                    let tr = $(['<tr id="upload-' + index + '">'
                        , '<td>' + file.name + '</td>'
                        , '<td>' + (file.size / 1014).toFixed(1) + 'kb</td>'
                        , '<td><div class="layui-progress layui-progress-big" lay-filter="progressDemo" lay-showPercent="true">\n' +
                        '  <div class="layui-progress-bar" lay-percent="0%"></div>\n' +
                        '</div></td>'
                        , '<td>等待上传</td>'
                        , '<td>'
                        , '<button class="layui-btn layui-btn-xs demo-reload layui-hide">重传</button>'
                        , '<button class="layui-btn layui-btn-xs layui-btn-danger demo-delete">删除</button>'
                        , '</td>'
                        , '</tr>'].join(''));

                    //单个重传
                    tr.find('.demo-reload').on('click', function () {
                        obj.upload(index, file);
                    });

                    //删除
                    tr.find('.demo-delete').on('click', function () {
                        delete files[index]; //删除对应的文件
                        tr.remove();
                        uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免删除后出现同名文件不可选
                    });

                    demoListView.append(tr);
                });
            }
            , done: function (res, index, upload) {
                let href;
                layer.alert(res.msg,
                    {
                        btn: ["清空列表", "取消"],
                        yes: function () {
                            $("#demoList").html("");
                            layer.closeAll();
                        }
                    });
                console.log(res);
                if (res.code == 0) { //上传成功let tr = demoListView.find('tr#upload-' + index)
                        , tds = tr.children();
                    if (res.data.fileType == "xlsx") {
                        href = "选定的在线预览api"
                            + res.data.fileInfo.replace("../", "");
                    }
                    element.progress('demo', '100%');
                    tds.eq(3).html('<span style="color: #5FB878;">上传成功</span>');
                    tds.eq(4).html('<button type="button" class="layui-btn" id="showAction">预览</button>'); //清空操作
                    $("#showAction").click(function () {
                        layer.open({
                            type: 2,
                            content: href,
                            title: "在线预览",
                            maxmin: true,
                        });
                    });
                    return delete this.files[index]; //删除文件队列已经上传成功的文件
                }
                this.error(index, upload);
            }
            , error: function (index, upload) {
                let tr = demoListView.find('tr#upload-' + index)
                    , tds = tr.children();
                element.progress('demo', '0%');
                tds.eq(3).html('<span style="color: #FF5722;">上传失败</span>');
                tds.eq(4).find('.demo-reload').removeClass('layui-hide'); //显示重传
            }
        });
    });
</script>
</body>
</html>