如何解决Bootstrap Carousel的上一个和下一个按钮不起作用
我正在尝试制作轮播,在观看了教程并浏览了引导程序上的HTML之后,我认为我已经正确地完成了所有操作,但是当我按下下一步按钮时,什么也没发生。
<!DOCTYPE html>
<html lang="en">
<head>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" rel="stylesheet">
<link href="styles.css" rel="stylesheet">
<title>Test</title>
</head>
<body>
<div id="mycarousel" class="carousel slide" data-ride="carousel">
<!-- indicators dot nav -->
<!-- wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="carousel-item active">
<img class="d-block w-100" src="cat photo.jpeg" alt="cat">
</div>
<div class="item">
<img class="d-block w-100" src="dog photo.jpg" alt="dog">
</div>
</div>
<!-- controls or next and prev buttons -->
<a class="carousel-control-prev" href="#mycarousel" 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="#mycarousel" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<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/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>
解决方法
您没有为转盘的第二张幻灯片提供carousel-item
类,将代码更改为此即可使用
<!DOCTYPE html>
<html lang="en">
<head>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" rel="stylesheet">
<link href="styles.css" rel="stylesheet">
<title>Test</title>
</head>
<body>
<div id="mycarousel" class="carousel slide" data-ride="carousel">
<!-- indicators dot nav -->
<!-- wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="carousel-item active">
<img class="d-block w-100" src="https://cdn.pixabay.com/photo/2015/02/24/15/41/dog-647528__340.jpg" alt="cat">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="https://www.freedigitalphotos.net/images/img/homepage/394230.jpg" alt="dog">
</div>
</div>
<!-- controls or next and prev buttons -->
<a class="carousel-control-prev" href="#mycarousel" 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="#mycarousel" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<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/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>
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