DedeV6/src/theme/templets/header.htm

<div class="site-nav bg-light py-2">
    <div class="container">
        <div class="row">
            <div class="col-12 d-flex justify-content-end user" id="_login">
                <a href="{dede:global.cfg_memberurl/}/login.php" class="btn btn-primary btn-sm">登录</a>
                <a href="{dede:global.cfg_memberurl/}/index_do.php?fmdo=user&dopost=regnew" class="btn btn-success btn-sm ml-2">注册</a>
            </div>
        </div>
    </div>
</div>
<header class="container py-3">
    <div class="row">  
        <div class="col-12 col-sm-8 logo"><a href="{dede:global.cfg_cmsurl/}/"><img src="{dede:global.cfg_cmsurl/}/static/web/img/logo.png" alt="{dede:global.cfg_webname/}"></a></div>
        <div class="col-12 col-sm-4 d-flex justify-content-end">
            <form class="search" name="formsearch" action="{dede:global.cfg_cmsurl/}/apps/search.php">                    
                <input type="hidden" name="kwtype" value="0">
                <input name="q" type="text" class="form-control" placeholder="输入搜索关键词">
                <button type="submit" class="btn btn-sm"><i class="fa fa-search"></i></button>
            </form>
        </div>
    </div>
</header>
<nav class="navbar navbar-expand-md navbar-dark bg-success zixue">
    <div class="container">
        <div class="row">
            <a class="navbar-brand" href="javascript:;"></a>
            <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbars" aria-controls="navbars" aria-expanded="false" aria-label="展开导航">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse" id="navbars">
                <ul class="navbar-nav mr-auto">
                    <li class="nav-item">
                        <a class="nav-link" href="{dede:global.cfg_cmsurl/}/">首页</a>
                    </li>
                    {dede:channel type='top' row='10' currentstyle="<li class='nav-item'><a class='nav-link active' href='~typelink~' ~rel~><span>~typename~</span></a></li>"}
                    <li class="nav-item">
                        <a class="nav-link" href="[field:typeurl/]">[field:typename/]</a>
                    </li>
                    {/dede:channel}
                </ul>
            </div>
        </div>
    </div>
</nav>