<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <style>
       /* 填写样式 */
    </style>
</head>

<body>
   <form>
    <!-- 补全代码 -->
    <input type="password" value="nowcoder">
    <input type="checkbox" checked>
</form>
    <script type="text/javascript">
        // 填写JavaScript
        
    </script>
</body>

</html>