{{template "header" .}}
<div class="container">
    <form id="form" enctype="multipart/form-data" action="/upload" method="POST">
        <label for="avatar">请选择文件:</label><br>
        <input type="file" id="file" name="file" /><br>
        <button class="button" type="submit">提交</button>
    </form>
</div>
{{template "footer" .}}