前端学习（181）:表单扩展二

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>表单属性扩展</title>
</head>
<body>
    <form action="https://www.baidu.com">
        <!-- 取消提示层 -->
        <input type="text" name="username" autocomplete="off" autofocus required pattern="[a-z]">
        <input type="submit">
    </form>
</body>
</html>

运行结果

来源：CSDN

作者：你知道歌谣吗？

链接：https://blog.csdn.net/weixin_43392489/article/details/103643376

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