代码示例:(标识:eg_html5_input_formenctype)
<!DOCTYPE HTML>
<html>
<body>

<form action="/index/demo/form_current.html" method="post">
  First name: <input type="text" name="fname" /><br />
<input type="submit" value="提交" />
<input type="submit" formenctype="multipart/form-data" value="以 Multipart/form-data 编码提交" />
</form>

</body>
</html>
运行结果: