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Twitter bootstrap 引导javascript已加载但不工作

twitter-bootstrap laravel bootstrap-4

Twitter bootstrap 引导javascript已加载但不工作,twitter-bootstrap,laravel,bootstrap-4,Twitter Bootstrap,Laravel,Bootstrap 4,我正在尝试新的引导，但JavaScript有问题。我在末尾加载了三行： <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https

我正在尝试新的引导，但JavaScript有问题。我在
末尾加载了三行：

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
用下拉列表测试它。。。这不管用。我和拉威尔和刀片一起工作，这可能就是原因，不是吗

<!DOCTYPE html>

<html>
    <head>
        <title>@yield('title')</title>

        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

        <!-- CSS -->
        <link rel="stylesheet" href="{{ asset('css/app.css') }}">
        <link rel="stylesheet" href="http://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
    </head>

    <body>
        <!-- Content -->
        <main class="container">
            @yield('main')
        </main>

        <div class="dropdown">
            <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                Dropdown button
            </button>
            <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
                <a class="dropdown-item" href="#">Action</a>
                <a class="dropdown-item" href="#">Another action</a>
                <a class="dropdown-item" href="#">Something else here</a>
            </div>
        </div>

        <!-- Scripts -->
        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
    </body>
</html>


@收益率（‘所有权’）
@产量（'main'）
下拉按钮
编辑：我忘记了，但是当我在控制台中执行
$.fn.tooltip.Constructor.VERSION
时，我有引导的版本号，这意味着它已加载否？

找到了答案。。。即使只使用javascript，所有内容都必须位于
.container
中。所以，现在这个很好用：

<!DOCTYPE html>

<html>
    <head>
        <title>@yield('title')</title>

        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

        <!-- CSS -->
        <link rel="stylesheet" href="{{ asset('css/app.css') }}">
        <link rel="stylesheet" href="http://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
    </head>

    <body>
        <!-- Content -->
        <div class="container">
            <div class="dropdown">
                <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                Dropdown button
                </button>
                <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
                    <a class="dropdown-item" href="#">Action</a>
                    <a class="dropdown-item" href="#">Another action</a>
                    <a class="dropdown-item" href="#">Something else here</a>
                </div>
            </div>
        </div>

        <!-- Scripts -->
        <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4" crossorigin="anonymous"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
    </body>
</html>


@收益率（‘所有权’）
下拉按钮
您需要共享您使用引导的代码。我共享了它，它是您的浏览器控制台上的下拉列表。嗯。。。没有什么？