代码示例:(标识:eg_html5_form_novalidate)
<!DOCTYPE HTML>
<html>
<body>

<form action="/index/demo/form_current.html" method="get" novalidate="novalidate">
E-mail: <input type="email" name="user_email" />
<input type="submit" />
</form>

</body>
</html>
运行结果: