Bootstrap 学习笔记3 输入框和导航组件

<nav class="navbar navbar-default">
        <div class="container">
            <div class="navbar-header">
                <a href="#" class="navbar-brand">标题</a>
            </div>
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">首页</a></li>
                <li class="disabled"><a href="#">资讯</a></li>
                <li><a href="#">产品</a></li>
                <li><a href="#">关于</a></li>
            </ul>
            <form action="#" class="navbar-form navbar-right">
                <div class="input-group">
                    <input type="text" class="form-control">
                    <div class="input-group-btn">
                        <button class="btn btn-default">提交</button>
                    </div>
                </div>
            </form>
            <button class="btn btn-default navbar-btn navbar-left">asdasd</button>
            <p class="navbar-text">我是一个文本</p>
        </div>
    </nav>