Question

我已经写了一些代码，在我运行之后，它遇到了这些问题，我不知道如何修复：

第一个问题：导航栏的下拉菜单不会展开。

第二个问题：李项目中没有正确的名称。

第三个问题：旋转木马根本不工作（它没有自动或手动切换图片，或者使用箭头，或者占据屏幕的整个宽度只是我看到的问题，但可能还有更多）。我的代码如下：

<!DOCTYPE html>
<html lang="en-us">
<head>
    <title>Bootstrap website</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
    <link rel="icon" href="" />

    <meta charset="UTF-8" />
    <meta name="viewport", content="width=device-width, initial-scale=1.0" />
</head>
<body id="body">
    <!-- Latest compiled and minified CSS & JS -->
    <script src="//code.jquery.com/jquery.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>

    <nav class="navbar navbar-default" role="navigation">
        <div class="container-fluid">
            <!-- Brand and toggle get grouped for better mobile display -->
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-ex1-collapse">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#">Title</a>
            </div>

            <!-- Collect the nav links, forms, and other content for toggling -->
            <div class="collapse navbar-collapse navbar-ex1-collapse ">
                <ul class="nav navbar-nav">
                    <li class="active"><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                </ul>
                <form class="navbar-form navbar-left" role="search">
                    <div class="form-group">
                        <input type="text" class="form-control" placeholder="Search">
                    </div>
                    <button type="submit" class="btn btn-default">Submit</button>
                </form>
                <ul class="nav navbar-nav navbar-right">
                    <li><a href="#">Link</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
                        <ul class="dropdown-menu">
                            <li><a href="#">Action</a></li>
                            <li><a href="#">Another action</a></li>
                            <li><a href="#">Something else here</a></li>
                            <li><a href="#">Separated link</a></li>
                        </ul>
                    </li>
                </ul>
            </div class="navbar-collapse"><!-- /. -->
        </div>
    </nav>
    <div id="carousel-example" class="carousel slide" data-ride="carousel">
        <ol class="carousel-indicators">
            <li data-target="#carousel-example" data-slide-to="0" class=""></li>
            <li data-target="#carousel-example" data-slide-to="1" class=""></li>
            <li data-target="#carousel-example" data-slide-to="2" class="active"></li>
        </ol>
        <div class="carousel-inner">
            <div class="item">
                <img data-src="holder.js/900x500/auto/#777:#7a7a7a/text:First slide" alt="First slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzc3NyI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojN2E3YTdhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+Rmlyc3Qgc2xpZGU8L3RleHQ+PC9zdmc+">
                <div class="container">
                    <div class="carousel-caption">
                        <h1>Example headline.</h1>
                        <p>Note: If you're viewing this page via a <code>file://</code> URL, the "next" and "previous" Glyphicon buttons on the left and right might not load/display properly due to web browser security rules.</p>
                        <p><a class="btn btn-lg btn-primary" href="#" role="button">Sign up today</a></p>
                    </div>
                </div>
            </div>
            <div class="item">
                <img data-src="holder.js/900x500/auto/#666:#6a6a6a/text:Second slide" alt="Second slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzY2NiI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojNmE2YTZhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+U2Vjb25kIHNsaWRlPC90ZXh0Pjwvc3ZnPg==">
                <div class="container">
                    <div class="carousel-caption">
                        <h1>Another example headline.</h1>
                        <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
                        <p><a class="btn btn-lg btn-primary" href="#" role="button">Learn more</a></p>
                    </div>
                </div>
            </div>
            <div class="item active">
                <img data-src="holder.js/900x500/auto/#555:#5a5a5a/text:Third slide" alt="Third slide" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI5MDAiIGhlaWdodD0iNTAwIj48cmVjdCB3aWR0aD0iOTAwIiBoZWlnaHQ9IjUwMCIgZmlsbD0iIzU1NSI+PC9yZWN0Pjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjQ1MCIgeT0iMjUwIiBzdHlsZT0iZmlsbDojNWE1YTVhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjU2cHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+VGhpcmQgc2xpZGU8L3RleHQ+PC9zdmc+">
                <div class="container">
                    <div class="carousel-caption">
                        <h1>One more for good measure.</h1>
                        <p>Cras justo odio, dapibus ac facilisis in, egestas eget quam. Donec id elit non mi porta gravida at eget metus. Nullam id dolor id nibh ultricies vehicula ut id elit.</p>
                        <p><a class="btn btn-lg btn-primary" href="#" role="button">Browse gallery</a></p>
                    </div>
                </div>
            </div>
        </div>
        <a class="left carousel-control" href="#carousel-example" data-slide="prev"><span class="glyphicon glyphicon-chevron-left"></span></a>
        <a class="right carousel-control" href="#carousel-example" data-slide="next"><span class="glyphicon glyphicon-chevron-right"></span></a>
    </div>
</body>
</html>

Answer 1

您必须为代码添加旧的jquery cdn

删除你在body标签开头使用的jquery cdn，并在'body tag'结束前使用它：

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <!-- Latest compiled and minified CSS & JS -->
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>

</body>
</html>

Bootstrap 3轮播和导航栏无法正常工作

1 个答案: