<html>
<body>
<form action="demo-form.php">
Email: <input type="text" name="email"><br>
Pin: <input type="text" name="pin" maxlength="4"><br>
<input type="reset" value="重置">
<input type="submit" value="提交">
</form>
<p>点击重置按钮重新设置表单。</p>
</body>
</html>