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<img src="/images/js/2018_11_02/constructor.png" alt="An image"></p> <div class="language-js line-numbers-mode"><div class="highlight-lines"><br><br><div class="highlighted"> </div><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br></div><pre class="language-js"><code><span class="token keyword">var</span> hModule <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">getElementsByClassName</span><span class="token punctuation">(</span><span class="token string">'h-module'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//获取模态框中的关闭按钮属性</span>
<span class="token keyword">var</span> hhtImg <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">&quot;hhtImg&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//设置模态框不同位置按钮点击之后展示的属性图片属性</span>
<span class="token keyword">var</span> hText <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">getElementById</span><span class="token punctuation">(</span><span class="token string">&quot;hText&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//设置模态框显示之后的提示信息</span>
<span class="token comment">/*hImage函数
 * 由于图片只有一张，所以同时设置title属性以示区分
 * 通过 switch语句判断点击不同按钮，
 * 在模态框展示不同的图片。
 */</span>
<span class="token keyword">function</span> <span class="token function">hImage</span><span class="token punctuation">(</span><span class="token parameter">e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token keyword">switch</span> <span class="token punctuation">(</span>e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">case</span> <span class="token number">1</span><span class="token operator">:</span>
      <span class="token comment">//hhtImg.src为设置需要展示的图片的地址</span>
      hhtImg<span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token string">&quot;http://oigzh9iic.bkt.clouddn.com/%E4%BA%AB%E6%9C%88%E4%BC%9A%E5%85%AC%E4%BC%97%E5%8F%B7%E4%BA%8C%E7%BB%B4%E7%A0%81.jpg&quot;</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">&quot;这里是&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span> <span class="token comment">//此处设置鼠标悬浮于图片时显示的文字</span>
      hText<span class="token punctuation">.</span>innerHTML <span class="token operator">=</span> <span class="token string">&quot;这里是二维码&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span> <span class="token comment">//此出设置模态框显示之后，展示提示文字的内容</span>
      <span class="token keyword">break</span><span class="token punctuation">;</span>
    <span class="token keyword">case</span> <span class="token number">2</span><span class="token operator">:</span>
      hhtImg<span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token string">&quot;http://oigzh9iic.bkt.clouddn.com/%E4%BA%AB%E6%9C%88%E4%BC%9A%E5%85%AC%E4%BC%97%E5%8F%B7%E4%BA%8C%E7%BB%B4%E7%A0%81.jpg&quot;</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">&quot;这里是&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span>
      hText<span class="token punctuation">.</span>innerHTML <span class="token operator">=</span> <span class="token string">&quot;这里是二维码&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span>
      <span class="token keyword">break</span><span class="token punctuation">;</span>
    <span class="token keyword">case</span> <span class="token number">3</span><span class="token operator">:</span>
      hhtImg<span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token string">&quot;http://oigzh9iic.bkt.clouddn.com/%E4%BA%AB%E6%9C%88%E4%BC%9A%E5%85%AC%E4%BC%97%E5%8F%B7%E4%BA%8C%E7%BB%B4%E7%A0%81.jpg&quot;</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">&quot;这里是&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span>
      hText<span class="token punctuation">.</span>innerHTML <span class="token operator">=</span> <span class="token string">&quot;这里是二维码&quot;</span> <span class="token operator">+</span> e<span class="token punctuation">;</span>
      <span class="token keyword">break</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
  hModule<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>style<span class="token punctuation">.</span>display <span class="token operator">=</span> <span class="token string">&quot;block&quot;</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token comment">/*hShow函数
 * 功能：关闭模态框；
 * 由于原生js中，获取参数的值
 * 之后，其属性为数组形式；
 * 需要设置下标，再去设置style属性，
 * 或者是其他属性
 * */</span>
<span class="token keyword">function</span> <span class="token function">hShow</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  hModule<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>style<span class="token punctuation">.</span>display <span class="token operator">=</span> <span class="token string">&quot;none&quot;</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br></div></div><div class="language-html line-numbers-mode"><pre class="language-html"><code><span class="token comment">&lt;!--主框架--&gt;</span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>h-box<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span><span class="token style-attr language-css"><span class="token attr-name"> <span class="token attr-name">style</span></span><span class="token punctuation">=&quot;</span><span class="token attr-value"><span class="token property">color</span><span class="token punctuation">:</span> #fff<span class="token punctuation">;</span><span class="token property">text-align</span><span class="token punctuation">:</span> center</span><span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>img</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>h-image<span class="token punctuation">&quot;</span></span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hImage(1)<span class="token punctuation">&quot;</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>50<span class="token punctuation">&quot;</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>25<span class="token punctuation">&quot;</span></span> <span class="token attr-name">alt</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>图标1<span class="token punctuation">&quot;</span></span> <span class="token attr-name">title</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>1<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>img</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>h-image<span class="token punctuation">&quot;</span></span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hImage(2)<span class="token punctuation">&quot;</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>50<span class="token punctuation">&quot;</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>25<span class="token punctuation">&quot;</span></span> <span class="token attr-name">alt</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>图标2<span class="token punctuation">&quot;</span></span> <span class="token attr-name">title</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>2<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>img</span> <span class="token attr-name">class</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>h-image<span class="token punctuation">&quot;</span></span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hImage(3)<span class="token punctuation">&quot;</span></span> <span class="token attr-name">width</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>50<span class="token punctuation">&quot;</span></span> <span class="token attr-name">height</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>25<span class="token punctuation">&quot;</span></span> <span class="token attr-name">alt</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>图标3<span class="token punctuation">&quot;</span></span> <span class="token attr-name">title</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>3<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>div</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>div</span><span class="token punctuation">&gt;</span></span>
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