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我遇到了这个奇怪的问题,除非我将控件链接放在carousel-inner div.

jquery 和引导文件正在工作,因为网站上的其他内容都没有问题(而且我在上面使用了很多 jquery)。如果不在“旋转木马内部”内,这些指标也可以正常工作。

我直接从 bootstrap 的网站复制并粘贴了这段代码,并尝试从其他示例中复制和粘贴。只有当我在carousel-inner. 我所有的 div 都正确关闭(我使用括号,所以它告诉我是否有任何未关闭)。我的其余代码也基本上是从 bootstrap 4 页面/示例中复制和粘贴的。我所做的只是添加更多幻灯片,但在此之前也发生了这个问题。

只有一块 custom css,如果我将其注释掉并不能解决控件问题。(它将字幕移动到幻灯片下方而不是分层在幻灯片顶部,并移动指示器,使其位于幻灯片上方而不是分层在顶部。):

.carousel-caption {
  position: relative;
  left: auto;
  right: auto;
}

.carousel-indicators {
  position: relative;
  margin: 0 auto;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet" />


<div id="myCarousel" class="carousel slide bg-inverse hidden-mobile" data-ride="carousel">
  <ol class="carousel-indicators" style="padding-bottom:2%;padding-top:2%;">
    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#myCarousel" data-slide-to="1"></li>
    <li data-target="#myCarousel" data-slide-to="2"></li>
    <li data-target="#myCarousel" data-slide-to="3"></li>
    <li data-target="#myCarousel" data-slide-to="4"></li>
    <li data-target="#myCarousel" data-slide-to="5"></li>
  </ol>
  <div class="carousel-inner" role="listbox">
    <div class="carousel-item active">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step1.gif" alt="First slide">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>
    <div class="carousel-item">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step2.gif" alt="Second slide">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>
    <div class="carousel-item">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step3.gif" alt="Third slide">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>
    <div class="carousel-item">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step4.gif" alt="Fourth slide" width="55%" height="auto">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>
    <div class="carousel-item">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step5.gif" alt="Fifth slide">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>
    <div class="carousel-item">
      <img class="d-block img-fluid ml-auto mr-auto" src="backgroundimages/step6.gif" alt="Sixth slide">
      <div class="carousel-caption" style="padding-top:3%;">
        <h3>Title</h3>
        <p>text text text</p>
      </div>
    </div>

    <a class="carousel-control-prev" href="#myCarousel" role="button" data-slide="prev" onclick="$('#myCarousel').carousel('prev')">
      <span class="carousel-control-prev-icon" aria-hidden="true"></span>
      <span class="sr-only">Previous</span>
    </a>
    <a class="carousel-control-next" href="#myCarousel" role="button" data-slide="next" onclick="$('#myCarousel').carousel('next')">
      <span class="carousel-control-next-icon" aria-hidden="true"></span>
      <span class="sr-only">Next</span>
    </a>
  </div>
</div>

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