我在Bootstrap 4的转盘中放入不同尺寸的图像时遇到麻烦。如何在转盘中放入不同尺寸的图像。
例如，我想放置不同大小的图像，如下面的代码所示。在当前情况下，当我这样做时，它仅占用该图像的大小。
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<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 class="container">
<div id="carouselwithIndicators" class="carousel slide w-50" 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="2s"></li>
</ol>
<div class=" carousel-inner">
<div class="carousel-item active">
<img class="d-block w-100" src="https://www.tutorialspoint.com/bootstrap/images/slide1.png" alt="First slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="https://i.pinimg.com/originals/fb/3f/e8/fb3fe82c671831afb614ac18cd69e11e.jpg" alt="Second slide">
</div>
<div …