Bootstrap4 Carousel 不左右滑动答案

【问题标题】：Bootstrap4 Carousel not swiping left and rightBootstrap4 Carousel 不左右滑动
【发布时间】：2020-09-17 03:57:03
【问题描述】：

我正在按照 Bootstrap 代码 sn-p 页面创建以下轮播。它有三个图像，控件应该向左滑动是正确的。我正在使用的脚本显示在文件底部的<script> 标记中。

<!doctype html>

<head>
  <link rel="stylesheet" href="css/main.css">
  <link rel="stylesheet" href="css/bootstrap.min.css">
</head>

<nav class="navbar navbar-expand-lg navbar-light bg-light fixed-top">
    <div class="container">
      <a class="navbar-brand" href="#">Wantrepreneur</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
          </button>
      <div class="collapse navbar-collapse" id="navbarResponsive">
        <ul class="navbar-nav ml-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home
                  <span class="sr-only">(current)</span>
                </a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">About</a>
          </li>
          
          <li class="nav-item">
            <a class="nav-link" href="#">Contact</a>
          </li>
        </ul>
      </div>
    </div>
  </nav>
  
  <header>
    <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
      <ol class="carousel-indicators">
        <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
        <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
        <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
      </ol>
      <div class="carousel-inner" role="listbox">
        <!-- Slide One - Set the background image for this slide in the line below -->
        <div class="carousel-item active" style="background-image: url('https://source.unsplash.com/LAaSoL0LrYs/1920x1080')">
          <div class="carousel-caption d-none d-md-block">
            <h2 class="display-4">First Slide</h2>
            <p class="lead">This is a description for the first slide.</p>
          </div>
        </div>
        <!-- Slide Two - Set the background image for this slide in the line below -->
        <div class="carousel-item" style="background-image: url('https://source.unsplash.com/bF2vsubyHcQ/1920x1080')">
          <div class="carousel-caption d-none d-md-block">
            <h2 class="display-4">Second Slide</h2>
            <p class="lead">This is a description for the second slide.</p>
          </div>
        </div>
        <!-- Slide Three - Set the background image for this slide in the line below -->
        <div class="carousel-item" style="background-image: url('https://source.unsplash.com/szFUQoyvrxM/1920x1080')">
          <div class="carousel-caption d-none d-md-block">
            <h2 class="display-4">Third Slide</h2>
            <p class="lead">This is a description for the third slide.</p>
          </div>
        </div>
      </div>
      <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
            <span class="carousel-control-prev-icon" aria-hidden="true"></span>
            <span class="sr-only">Previous</span>
          </a>
      <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
            <span class="carousel-control-next-icon" aria-hidden="true"></span>
            <span class="sr-only">Next</span>
          </a>
    </div>
  </header>
  
  <!-- Page Content -->
  <section class="py-5">
    <div class="container">
      <h1 class="display-4">Full Page Image Slider</h1>
      <p class="lead">The background images for the slider are set directly in the HTML using inline CSS. The images in this snippet are from <a href="https://unsplash.com">Unsplash</a>, taken by <a href="https://unsplash.com/@joannakosinska">Joanna Kosinska</a>!</p>
    </div>
  </section>

<script src="js/vendor/bootstrap.bundle.min.js"></script>
<script src="js/vendor/jquery.slim.min.js"></script>


</html>

但是，当我按下任一控件时，浏览器中的链接会从 link.com 更改为 link.com#carouselExampleIndicators，但没有任何反应，图像也不会滑动/更改。我应该怎么做才能解决这个问题？

谢谢，文尼

【问题讨论】：

看起来你是在 jQuery 之前加载 Bootstrap。尝试切换脚本顺序。
工作。做出回答，我会接受
很高兴它成功了！祝你好运！

标签： javascript html css bootstrap-4

【解决方案1】：

这是一个简单的脚本顺序问题。 Bootstrap 需要 jQuery，但您在 jQuery 之前加载 Bootstrap。切换顺序：

<script src="js/vendor/jquery.slim.min.js"></script>
<script src="js/vendor/bootstrap.bundle.min.js"></script>

【讨论】：

【解决方案2】：

在 bootstrap 5 发布之前，

在Bootstrap < 5中依赖于jQuery：-

因此，您必须在 html 代码中维护外部脚本的顺序：-

应该是：-

<script src="js/vendor/jquery.slim.min.js"></script>
<script src="js/vendor/bootstrap.bundle.min.js"></script>

【讨论】：