javascript - Bootstrap 示例 Carousel 代码不切换幻灯片

Question

我已经研究了一个多小时，但我无法从 Bootstrap 网站获得此示例代码以用于 Carousel 工作...我唯一更改的是图像源。我究竟做错了什么？如果有帮助，这将在 Angular 元素的一个组件中。

<div id="ourCarousel" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#ourCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#ourCarousel" data-slide-to="1"></li>
    <li data-target="#ourCarousel" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-100" src="..." alt="First slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="..." alt="Second slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="..." alt="Third slide">
    </div>
  </div>
<a class="carousel-control-prev" href="#ourCarousel" 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="#ourCarousel" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

我知道 Bootstrap 正在加载，因为第一个图像与控件和指示器一起显示 - 唯一的问题是它们没有响应。

我将以下代码放在主应用程序组件中，从那里调用轮播组件。

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

我也试过在上面的代码之前和之后添加这个......

<script>
  $("#ourCarousel").carousel();
</script>

我觉得我已经做了所有可以想到的事情来让它发挥作用，我是否遗漏了任何重要的步骤？

Answer 1

我试过了，好像没有问题。猜测javascript不能选择html。 或者

$(document).ready(function() {
   wait for the document to load.
   $("#ourCarousel").carousel()
})

$("#ourCarousel").carousel()

<!-- begin snippet: js hide: false console: true babel: false -->

    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
      <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
      <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
      <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

    <div id="ourCarousel" class="carousel slide" data-ride="carousel">
      <ol class="carousel-indicators">
        <li data-target="#ourCarousel" data-slide-to="0" class="active"></li>
        <li data-target="#ourCarousel" data-slide-to="1"></li>
        <li data-target="#ourCarousel" data-slide-to="2"></li>
      </ol>
      <div class="carousel-inner">
        <div class="carousel-item active">
          <img class="d-block w-100" src="https://images.unsplash.com/photo-1525160354320-d8e92641c563?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=d46c460396a4572221a1aa45cf67fc6b&auto=format&fit=crop&w=1834&q=80" alt="First slide">
        </div>
        <div class="carousel-item">
          <img class="d-block w-100" src="https://images.unsplash.com/photo-1525160354320-d8e92641c563?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=d46c460396a4572221a1aa45cf67fc6b&auto=format&fit=crop&w=1834&q=80" alt="Second slide">
        </div>
        <div class="carousel-item">
          <img class="d-block w-100" src="https://images.unsplash.com/photo-1525160354320-d8e92641c563?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=d46c460396a4572221a1aa45cf67fc6b&auto=format&fit=crop&w=1834&q=80" alt="Third slide">
        </div>
      </div>
    <a class="carousel-control-prev" href="#ourCarousel" 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="#ourCarousel" role="button" data-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
      </a>
    </div>