我的bootstrap 4旋转木马不会显示图像

时间：2019-01-07 13:46:33

标签： javascript html twitter-bootstrap bootstrap-4

导航正常，但轮播让我感觉像在砸笔记本电脑。

轮播不会显示图像，仅显示使用引导程序4.1.2滑动的三个点

<!doctype html>
<html lang="en">
<head>``

<meta charset="utf-8">
<meta name="viewport" content="width=device-width",initial-scale="1">
<title>master c&f</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<link href="bootstrap.css" rel="stylesheet">
<script src="bootstrap.js"> </script>

</head>
<body>
<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/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>

<!---Navigation--->
<nav class="navbar navbar-expand-md navbar-light bg-light sticky-top" >
	<div class="container-fluid">
<a class="navbar-brand" href="#"><img src="img/"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive">
	<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="nabar-nav ml-auto">
	<li class="nav-item active">
		<a class="nav-link" href="#">Home</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">clearing</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">forwading</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">warehousing</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">enquires</a>
	</li>
</ul>
</div>

</div>
</nav> 

<!----Image slider---->
<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">
      <img src="img/back.jpg" class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="img/FRONT.jpg" class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="img/BOAT.jpg" class="d-block w-100" alt="...">
    </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>
	








	</body>
	</html>

此代码可能有什么问题，或者为什么不起作用？

3 个答案:

答案 0 :(得分：0)

The only thing that i can see here that will cause image loading problems is the directory's. I mean the location of the images. if the path 'img' is located inside other path like public/img/name.jpg you must type the full route. Other reason is if you use php frme work you must use something like base_url() or site_url() before the path. Most of the time the options that specify the paths are in a config file, which hase the full route to the project containing folder.

答案 1 :(得分：0)

我想这里的主要问题是由于您的图像路径。 使用google中找到的某些图片，然后只需在代码段中更改轮播图片的src，效果就很好。

您在代码中看到的3个点归因于alt="..."属性。如果您在这里写了一些东西（如应有的话），那么如果找不到该图像，您将看到该文本。

<!doctype html>
<html lang="en">
<head>``

<meta charset="utf-8">
<meta name="viewport" content="width=device-width",initial-scale="1">
<title>master c&f</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<link href="bootstrap.css" rel="stylesheet">
<script src="bootstrap.js"> </script>

</head>
<body>
<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/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>

<!---Navigation--->
<nav class="navbar navbar-expand-md navbar-light bg-light sticky-top" >
	<div class="container-fluid">
<a class="navbar-brand" href="#"><img src="img/"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive">
	<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="nabar-nav ml-auto">
	<li class="nav-item active">
		<a class="nav-link" href="#">Home</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">clearing</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">forwading</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">warehousing</a>
	</li>
	<li class="nav-item ">
		<a class="nav-link" href="#">enquires</a>
	</li>
</ul>
</div>

</div>
</nav> 

<!----Image slider---->
<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">
      <img src="https://staticr1.blastingcdn.com/media/photogallery/2018/6/24/660x290/b_1200x675/ciao-compie-200-anni-il-celebre-saluto-inizio-a-diventare-comune-dal-1818-vitaesteticait_2039115.jpg" class="d-block w-100" alt="...">
    </div>
    <div class="carousel-item">
      <img src="2018/02/13/172803766-5059c7e1-5f17-49f3-b9ee-128dee78981a.jpg" class="d-block w-100" alt="Image not found...">
    </div>
    <div class="carousel-item">
      <img src="https://st3.depositphotos.com/5269571/12517/v/950/depositphotos_125175688-stock-illustration-ciao-italian-greeting.jpg" class="d-block w-100" alt="...">
    </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>
	








	</body>
	</html>

答案 2 :(得分：0)

您的轮播很好。只要确保图像的路径正确即可。您的目录结构是什么？

下面我使用了公共图片：

.carousel {
  max-width: 1200px;
  margin: 0 auto;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" 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/1.14.6/umd/popper.min.js" integrity="sha384-wHAiFfRlMFy6i5SRaxvfOCifBUQy1xHdJ/yoi7FRNXMRBu5WHdZYu1hA6ZOblgut" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js" integrity="sha384-B0UglyR+jN6CkvvICOB2joaf5I4l3gm9GU6Hc1og6Ls7i6U/mkkaduKaBhlAXv9k" crossorigin="anonymous"></script>

<!----Image slider---->
<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">
      <img class="img-fluid" src="https://picsum.photos/1200/600/?random">
    </div>
    <div class="carousel-item">
      <img class="img-fluid" src="https://picsum.photos/1200/600/?gravity=north">
    </div>
    <div class="carousel-item">
      <img class="img-fluid" src="https://picsum.photos/1200/600/?gravity=west">
    </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>

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