平時上傳文件需要按住Ctrl同時選中多文件才能上傳多個，layui可以一個一個選上傳多個
代碼如下：
導入jq和layui.css
<script src="http://libs.baidu.com/jquery/1.8.3/jquery.min.js"></script>
<link rel="stylesheet" href="${pageContext.request.contextPath }/mvs/layui/css/layui.css" media="all">
php：
<fieldset class="layui-elem-field layui-field-title" style="margin-top: 30px;">
<legend>圖片信息</legend>
</fieldset>
<div class="layui-upload">
<button type="button" class="layui-btn layui-btn-normal" id="testList">選擇多文件</button>
<div class="layui-upload-list">
<table class="layui-table">
<thead>
<tr><th>文件名</th>
<th>大小</th>
<th>狀態</th>
<th>操作</th>
</tr></thead>
<tbody id="demoList"></tbody>
</table>
</div>
<button type="button" class="layui-btn" id="testListAction">開始上傳</button>
<button type="button" class="layui-btn" id="back">返回</button>
js:
<script>
var id = $("#agendaId").val();
layui.use('upload', function(){
var $ = layui.jquery
,upload = layui.upload;
//多文件列表示例
var demoListView = $('#demoList')
,uploadListIns = upload.render({
elem: '#testList'
,url: 'yourUrl'
,accept: 'file'
,data:{} //可放擴展數據 key-value
,multiple: true
,auto: false
,bindAction: '#testListAction'
,choose: function(obj){
var files = this.files = obj.pushFile(); //將每次選擇的文件追加到文件隊列
//讀取本地文件
obj.preview(function(index, file, result){
var tr = $(['<tr id="upload-'+ index +'">'
,'<td>'+ file.name +'</td>'
,'<td>'+ (file.size/1014).toFixed(1) +'kb</td>'
,'<td>等待上傳</td>'
,'<td>'
,'<button class="layui-btn layui-btn-mini demo-reload layui-hide">重傳</button>'
,'<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">刪除</button>'
,'</td>'
,'</tr>'].join(''));
//單個重傳
tr.find('.demo-reload').on('click', function(){
obj.upload(index, file);
});
//刪除
tr.find('.demo-delete').on('click', function(){
delete files[index]; //刪除對應的文件
tr.remove();
uploadListIns.config.elem.next()[0].value = ''; //清空 input file 值，以免刪除後出現同名文件不可選
});
demoListView.append(tr);
});
}
,done: function(res, index, upload){
if(res.code == 0) //上傳成功
var tr = demoListView.find('tr#upload-'+ index)
,tds = tr.children();
tds.eq(2).html('<span style="color: #5FB878;">上傳成功</span>');
tds.eq(3).html(''); //清空操作
return delete this.files[index]; //刪除文件隊列已經上傳成功的文件
} //code爲後臺傳回來的數據，具體多少自己定，
//後臺只能傳回json格式數據，不然會走error函數；
,error: function(index, upload){
}
});