Question

我正在尝试使自举轮播工作，但是当我加载页面时，它仅以全尺寸显示所有3张图像。

我已经尝试了所有无法找到的解决方案。我将引导脚本放在正确的位置。我包括了jQuery，因为显然这是必需的（??）。我将其中一张图片标记为有效。

标题/导入项：

<head>
    <script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
    <script>
        // Load this when the DOM is ready
        $(document).ready(function() {
            $('#carousel').carousel();
        });
    </script>
</head>

轮播：

    <h1 class="text-center">Slideshow</h1>
    <div class="carousel" id="carousel" data-ride="carousel">
        <ol class="carousel-indicators">
            <li data-target="#carousel" data-slide-to="0"></li>
            <li data-target="#carousel" data-slide-to="1"></li>
            <li data-target="#carousel" data-slide-to="2"></li>
        </ol>
        <div class="carousel-inner">
            <div class="item active"><img src="img/food-1.jpg" alt="Food 1"></div>
            <div class="item"><img src="img/food-2.jpg" alt="Food 2"></div>
            <div class="item"><img src="img/food-3.jpg" alt="Food 3"></div>
        </div>
        <a href="#carousel" data-slide="prev" class="left-carousel-control">
            <span class="glyphicon glyphicon-chevron-left"></span>
            <span class="sr-only">Previous</span>
        </a>
        <a href="#carousel" data-slide="next" class="right-carousel-control">
            <span class="glyphicon glyphicon-chevron-right"></span>
            <span class="sr-only">Next</span>
        </a>
    </div>

Answer 1

似乎您正在使用Bootstap-3的HTML代码和Bootstrap-4的JS文件。

即不兼容问题。

这是Bootstrap-4滑块的简单代码。 Bootstrap-4 Carousel

<div id="carouselExampleControls" class="carousel slide" data-ride="carousel">
    <div class="carousel-inner">
        <div class="carousel-item active">
            <img src="https://source.unsplash.com/1920x1080/?water" class="d-block w-100" alt="...">
        </div>
        <div class="carousel-item">
            <img src="https://source.unsplash.com/1920x1080/?nature" class="d-block w-100" alt="...">
        </div>
        <div class="carousel-item">
            <img src="https://source.unsplash.com/1920x1080/?food" class="d-block w-100" alt="...">
        </div>
    </div>
    <a class="carousel-control-prev" href="#carouselExampleControls" 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="#carouselExampleControls" role="button" data-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
    </a>
</div>

如果要使用Bootstrap-3版本，请参考， Bootstrap 3 Carousel

Answer 2

Bootstrap-4提供了简单的轮播滑块，您可以尝试这个简单的示例。

<div id="demo" class="carousel slide" data-ride="carousel">

  <!-- Indicators -->
  <ul class="carousel-indicators">
    <li data-target="#demo" data-slide-to="0" class="active"></li>
    <li data-target="#demo" data-slide-to="1"></li>
    <li data-target="#demo" data-slide-to="2"></li>
  </ul>

  <!-- The slideshow -->
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="la.jpg" alt="Los Angeles" width="1100" height="500">
    </div>
    <div class="carousel-item">
      <img src="chicago.jpg" alt="Chicago" width="1100" height="500">
    </div>
    <div class="carousel-item">
      <img src="ny.jpg" alt="New York" width="1100" height="500">
    </div>
  </div>

  <!-- Left and right controls -->
  <a class="carousel-control-prev" href="#demo" data-slide="prev">
    <span class="carousel-control-prev-icon"></span>
  </a>
  <a class="carousel-control-next" href="#demo" data-slide="next">
    <span class="carousel-control-next-icon"></span>
  </a>
</div>

引导轮播无法正确加载图像

2 个答案: