语义 UI 未按预期工作答案

【问题标题】：Semantic UI not working as expected语义 UI 未按预期工作
【发布时间】：2018-06-29 07:37:52
【问题描述】：

我从 codeopen 获得此代码
https://codepen.io/monty5811/pen/xVgrzB#code-area
我希望将其嵌入到我的网页中
所以经过一些研究后，我尝试了类似下面的方法。
但这并没有按预期工作。
这是我的html头

 <head>
        <meta charset="utf-8" />
        <title>Semantic UI CDN</title>
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/1.11.8/semantic.min.css"/>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/1.11.8/semantic.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.1.8/semantic.css"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.1.8/semantic.js"></script>
    <script>
    $('.dropdown').dropdown({
      label: {
        duration: 0,
      },
      debug: true,
      performance: true,
    }); 
    $('.ui.checkbox')
      .checkbox({
        onChecked() {
          const options = $('#members_dropdown > option').toArray().map(
            (obj) => obj.value
          );
          $('#members_dropdown').dropdown('set exactly', options);
        },
        onUnchecked() {
          $('#members_dropdown').dropdown('clear');
        },
      });
    </script>
    </head>

主体：

<body>
<div class="ui hidden divider"></div>
<div class="ui stackable grid container">
  <div class="eight wide column">
    <form class="ui form" method="post">
      <div class="field  ">
        <label class="" for="id_members">Members</label>
        <select multiple="multiple" class="ui fluid search dropdown" id="members_dropdown" multiple="" name="members">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>
      </div>
      <div id="dtBox"></div>
      <div class="ui toggle checkbox">
        <input type="checkbox" id="selectall">
        <label>Select all</label>
      </div>
      <p>
    </form>
  </div>
</div>
</body>

【问题讨论】：

标签： javascript html semantic-ui

【解决方案1】：

只需从头替换脚本并放入末尾。这是工作代码。

<!DOCTYPE html>
<html>
<head>
        <meta charset="utf-8" />
        <title>Semantic UI CDN</title>
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/1.11.8/semantic.min.css"/>

    </head>

    <body>
<div class="ui hidden divider"></div>
<div class="ui stackable grid container">
  <div class="eight wide column">
    <form class="ui form" method="post">
      <div class="field  ">
        <label class="" for="id_members">Members</label>
        <select multiple="multiple" class="ui fluid search dropdown" id="members_dropdown" multiple="" name="members">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select>
      </div>
      <div id="dtBox"></div>
      <div class="ui toggle checkbox">
        <input type="checkbox" id="selectall">
        <label>Select all</label>
      </div>
      <p>
    </form>
  </div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
         <script src="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.1.8/semantic.js"></script>
    <script>
    $('.dropdown').dropdown({
      label: {
        duration: 0,
      },
      debug: true,
      performance: true,
    }); 
    $('.ui.checkbox')
      .checkbox({
        onChecked() {
          const options = $('#members_dropdown > option').toArray().map(
            (obj) => obj.value
          );
          $('#members_dropdown').dropdown('set exactly', options);
        },
        onUnchecked() {
          $('#members_dropdown').dropdown('clear');
        },
      });
    </script>
</body>
<html>

【讨论】：

成功了，谢谢。你能告诉我它有什么不同吗？我的意思是为什么不在顶部添加它？