如何使用jQuery创建手风琴？

Question

我试图创建一个手风琴，默认情况下，其中一个步骤是默认打开的，其余步骤可以通过单击一个编辑按钮来打开。结构定义如下。

Step 1

Hello world. Lorem ipsum.
--------------------------------------------
Step 2                                  Edit
--------------------------------------------
Step 3                                  Edit
--------------------------------------------
Step 4                                  Edit

现在，如您所见，默认情况下，步骤1的内容是可见的。因此，如果我单击步骤2的“编辑”按钮，步骤1应该折叠，步骤2的内容应该是可见的。

这就是我到目前为止得出的结论。

HTML：

<h6 class="ml-3 mt-3 step-1"><a id="step-one" href="#">Step 1</a></h6>
<br style="clear:both;">
<div id="promo-code" class="mt-5 ml-3">
<p>Abc content</p>
<button type="button" class="btn btn-primary">Continue</button>
</div>

<hr class="ml-3">

<div class="mt-5 ml-3" id="promo-box">
<h6>Step 2</h6>
<p>Abc content</p>
<button type="button" class="btn btn-primary">Continue</button>
</div>

联署材料：

$("#promo-code").click(function(){
document.getElementById("promo-code").style.display = "none";
document.getElementById("promo-box").style.display = "block";
});

$("#step-one").click(function(){
document.getElementById("promo-code").style.display = "block";
document.getElementById("promo-box").style.display = "none";
});

CSS：

#promo-code {
font-size: 15px;
color: #02b875;
}

#promo-box {
display: none;
}

.step-1 {
margin-bottom: -30px;
}

Answer 1

由于您使用的是引导，下面是引导示例。运行此代码段，功能几乎与您想要实现的功能相同，可以根据需要进行修改。

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<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script>

<div class="accordion" id="accordionExample">
  <div class="card">
    <div class="card-header" id="headingOne">
      <h5 class="mb-0"> Step 1
        <button class="btn btn-link float-right" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">Edit</button>
      </h5>
    </div>

    <div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
      <div class="card-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingTwo">
      <h5 class="mb-0"> Step 2
        <button class="btn btn-link collapsed float-right" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">Edit</button>
      </h5>
    </div>
    <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionExample">
      <div class="card-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingThree">
      <h5 class="mb-0">Step 3
        <button class="btn btn-link collapsed float-right" type="button" data-toggle="collapse" data-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Edit
        </button>
      </h5>
    </div>
    <div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
      <div class="card-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
</div>

​