以前从未遇到过这个问题，但无论出于何种原因，我的基本 BS4 轮播控件都无法正常工作。有趣的是，这些指标在被点击时起作用了？
<div class="col-md-6">
<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">
<div class="carousel-item active">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="carousel-item">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="carousel-item">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</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>
</div>
最佳答案
添加 popper.js 可能会对您有所帮助。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="col-md-6">
<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">
<div class="carousel-item active">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="carousel-item">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="carousel-item">
<div class="embed-container">
<iframe src="https://www.youtube.com/embed/..." frameborder="0" allowfullscreen></iframe>
</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>
</div>
</body>
</html>关于javascript - Bootstrap 4 轮播控件不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47820156/