<!DOCTYPE html>
<html lang="zh" xmlns:th="http://www.thymeleaf.org">
<head>
    <th:block th:include="include :: header('新增文件')"/>
    <th:block th:include="include :: bootstrap-fileinput-css" />
</head>
<body class="white-bg">
<div class="wrapper wrapper-content animated fadeInRight ibox-content">
    <form class="form-horizontal m" id="form-teachingMaterial-add">
        <div class="form-group">
            <label class="col-sm-3 control-label">文件说明：</label>
            <div class="col-s