twitter-bootstrap - Bootstrap 轮播不适用于 flask 路由

Question

我在 index.html 中有这个 HTML 代码:

{% block header %}
<header>
  <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" role="listbox">
      <!-- Slide One - Set the background image for this slide in the line below -->
      <div class="carousel-item active" style="background-image: url('http://placekitten.com/1900/1080')">
        <div class="carousel-caption d-none d-md-block">
          <h3>First Slide</h3>
          <p>This is a description for the first slide.</p>
        </div>
      </div>
      <!-- Slide Two - Set the background image for this slide in the line below -->
      <div class="carousel-item" style="background-image: url('http://placekitten.com/1900/1080')">
        <div class="carousel-caption d-none d-md-block">
          <h3>Second Slide</h3>
          <p>This is a description for the second slide.</p>
        </div>
      </div>
      <!-- Slide Three - Set the background image for this slide in the line below -->
      <div class="carousel-item" style="background-image: url('http://placekitten.com/1900/1080')">
        <div class="carousel-caption d-none d-md-block">
          <h3>Third Slide</h3>
          <p>This is a description for the third slide.</p>
        </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>
</header>
{% endblock %}

这是我的 flask 路由器:

@app.route('/')
@app.route('/index')
def index():
    return render_template('index.html')

问题是，当我单击轮播上的下一步按钮时，它不起作用，显示的 URL 是:

http://127.0.0.1:5000/index#carouselExampleIndicators

我知道问题很明显，但我想不出解决方案。我试图保持 index.html 独立.. 或试图将 carousel id 发送回路由器，然后从那里开始.. 但我所有的尝试都是无用的。我使用 Bootstrap 4.1.3 和 flask 1.0.2。

Answer 1

看起来 index.html 页面缺少 Bootstrap 的链接。您可以从 https://getbootstrap.com/docs/4.3/getting-started/download/ 获取 bootstrap.css 和 bootstrap.min.js并将 css 和 js 文件夹保存在 flask 模板文件夹(放置 index.html 的位置)中。

添加 <link rel="stylesheet" type="text/css" href="css/bootstrap.css">在 {% block header %} 之后和 <script src="js/bootstrap.min.js"></script>之前 {% endblock %}应该使轮播中的图像滑动正常工作

例如:

{% block header %}
<link rel="stylesheet" type="text/css" href="css/bootstrap.css">
  <header>
    <div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
    .... YOUR HTML CODE FOR CAROUSEL GOES HERE ....
    </div>
  </header>
<script src="js/bootstrap.min.js"></script>
{% endblock %}