javascript - Bootstrap Carousel 不工作(显示页面上的所有元素)

Question

我正在尝试创建一个旋转木马。我已经创建了结构，但只希望出现五个 block ，然后在单击箭头后出现第六个 block 。我该怎么做？

我的方法:(采用from here)

img{
  border: 1px solid red;
  width: 100px;
  height: 100px;
  display: block;
}
ul{
  display: inline-block;
}
li{
  list-style-type: none;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="item active">
      <!----------->
      <!-- CTA 1 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 1</span>
        </li>
      </ul>
      <!----------->
      <!-- CTA 2 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 2</span>
        </li>
      </ul>
      <!----------->
      <!-- CTA 3 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 3</span>
        </li>
      </ul>
      <!----------->
      <!-- CTA 4 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 4</span>
        </li>
      </ul>
      <!----------->
      <!-- CTA 5 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 5</span>
        </li>
      </ul>
      <!----------->
      <!----------->

      <!-- TO APPEAR AFTER CONTROL CLICK -->

      <!----------->
      <!-- CTA 6 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src=""/>
          <span>Test 6</span>
        </li>
      </ul>
    </div>
  </div>
  <!--=====================-->
  <!--== ON ARROW DISPLAY -==>  
  <!--=====================-->


  <!-- Left and right controls -->
  <a class="left carousel-control" href="#myCarousel" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#myCarousel" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

目前，如您所见，它最初显示全部六个。不确定链接的演示和我的方法之间有什么不同(当然除了结构之外)。

Answer 1

那是因为你把所有的图像都保存在一个 <div class="item"> 中

将它们放在单独的元素 div 中，这样:

<div class="item active">cat 1</div>
<div class="item">cat 2</div>
<div class="item">cat 3</div>
<div class="item">cat 4</div>
<div class="item">cat 5</div>
<div class="item">cat 6</div>

img {
  border: 1px solid red;
  width: 100px;
  height: 100px;
  display: block;
}

ul {
  display: inline-block;
}

li {
  list-style-type: none;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <div class="carousel-inner">
    <div class="item active">
      <!----------->
      <!-- CTA 1 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 1</span>
        </li>
      </ul>
    </div>
    <div class="item">
      <!----------->
      <!-- CTA 2 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 2</span>
        </li>
      </ul>
    </div>
    <div class="item ">
      <!----------->
      <!-- CTA 3 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 3</span>
        </li>
      </ul>
    </div>
    <div class="item ">
      <!----------->
      <!-- CTA 4 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 4</span>
        </li>
      </ul>
    </div>
    <div class="item ">
      <!----------->
      <!-- CTA 5 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 5</span>
        </li>
      </ul>
    </div>
    <div class="item ">
      <!----------->
      <!----------->

      <!-- TO APPEAR AFTER CONTROL CLICK -->

      <!----------->
      <!-- CTA 6 -->
      <!----------->
      <ul class="clearfix">
        <li>
          <img src="" />
          <span>Test 6</span>
        </li>
      </ul>
    </div>
  </div>
  <!--=====================-->
  <!--== ON ARROW DISPLAY -==>  
  <!--=====================-->


  <!-- Left and right controls -->
  <a class="left carousel-control" href="#myCarousel" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#myCarousel" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right"></span>
    <span class="sr-only">Next</span>
  </a>
</div>