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    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">'</span>replacement<span class="token punctuation">'</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">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">'</span>[图片1]<span class="token punctuation">'</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 comment">&lt;!-----------------&gt;</span>
    <span class="token comment">&lt;!--忽略同类型代码.--&gt;</span>
    <span class="token comment">&lt;!-----------------&gt;</span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">'</span>replacement<span class="token punctuation">'</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">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">'</span>[图片10]<span class="token punctuation">'</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>
</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></div></div><div class="language-css line-numbers-mode"><pre class="language-css"><code><span class="token selector">.img-wrapper</span> <span class="token punctuation">{</span>
  <span class="token property">margin-top</span><span class="token punctuation">:</span> 30px<span class="token punctuation">;</span>
  <span class="token property">display</span><span class="token punctuation">:</span> flex<span class="token punctuation">;</span>
  <span class="token property">justify-content</span><span class="token punctuation">:</span> space-around<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token selector">.img-wrapper &gt; div</span> <span class="token punctuation">{</span>
  <span class="token property">flex</span><span class="token punctuation">:</span> 0 0 100px<span class="token punctuation">;</span>
  <span class="token property">border</span><span class="token punctuation">:</span> 1px solid<span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token selector">img</span> <span class="token punctuation">{</span>
  <span class="token property">width</span><span class="token punctuation">:</span> 100%<span class="token punctuation">;</span>
  <span class="token property">height</span><span class="token punctuation">:</span> 100%<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></div></div><div class="language-js line-numbers-mode"><pre class="language-js"><code><span class="token comment">// 定义图片源数据</span>
<span class="token keyword">let</span> imgs <span class="token operator">=</span> <span class="token punctuation">[</span>
  <span class="token string">'[图片1]'</span><span class="token punctuation">,</span>
  <span class="token comment">//---------------//</span>
  <span class="token comment">// 忽略同类型代码. //</span>
  <span class="token comment">//---------------//</span>
  <span class="token string">'[图片2]'</span><span class="token punctuation">,</span>
<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token keyword">function</span> <span class="token function">replacement</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token comment">// 获取img-wrapper下的所有子节点</span>
  <span class="token keyword">let</span> imgWrapper <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">'img-wrapper'</span><span class="token punctuation">)</span><span class="token punctuation">.</span>childNodes<span class="token punctuation">;</span>
  <span class="token comment">//设置其他img图像为正常显示</span>
  <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">let</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator">&lt;</span> imgWrapper<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    imgWrapper<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">.</span>children<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>src <span class="token operator">=</span> imgs<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
  <span class="token comment">// 设置被点击元素的图像</span>
  <span class="token keyword">this</span><span class="token punctuation">.</span>children<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token string">'[需要展示的图片链接]'</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></div></div><div class="dynamic_replacement_image" data-v-488aec74><div class="img-wrapper" data-v-488aec74><div data-v-488aec74><img ondragstart="return false;" src="/images/js/2018_10_28/images/01.png" alt data-v-488aec74></div><div data-v-488aec74><img ondragstart="return false;" src="/images/js/2018_10_28/images/02.png" alt data-v-488aec74></div><div data-v-488aec74><img ondragstart="return false;" src="/images/js/2018_10_28/images/03.png" alt data-v-488aec74></div></div></div> <h2 id="稍微复杂一点"><a href="#稍微复杂一点" class="header-anchor">#</a> 稍微复杂一点</h2> <p>通多<code>js</code>去创建重复的<code>div</code>布局.并设置样式.最后结果同上.</p> <p>但是这个例子没有做需要做循环的元素总量达到 100 或是更高数量的性能优化.</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>imgWrapper<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>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><div class="language-css line-numbers-mode"><pre class="language-css"><code><span class="token selector">#imgWrapper</span> <span class="token punctuation">{</span>
  <span class="token property">display</span><span class="token punctuation">:</span> flex<span class="token punctuation">;</span>
  <span class="token property">width</span><span class="token punctuation">:</span> 100%<span class="token punctuation">;</span>
  <span class="token property">flex-wrap</span><span class="token punctuation">:</span> wrap<span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token selector">#imgWrapper &gt; div</span> <span class="token punctuation">{</span>
  <span class="token property">flex</span><span class="token punctuation">:</span> 0 0 200px<span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token selector">#imgWrapper &gt; div &gt; img</span> <span class="token punctuation">{</span>
  <span class="token property">display</span><span class="token punctuation">:</span> block<span class="token punctuation">;</span>
  <span class="token property">width</span><span class="token punctuation">:</span> 100%<span class="token punctuation">;</span>
  <span class="token property">height</span><span class="token punctuation">:</span> auto<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></div></div><div class="language-js line-numbers-mode"><pre class="language-js"><code>window<span class="token punctuation">.</span><span class="token function-variable function">onload</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
  <span class="token keyword">let</span> imgWrapper <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">'imgWrapper'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// 待插入元素的总容器</span>
  <span class="token comment">// 通过 for 循环语句,创建示例元素</span>
  <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">let</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator">&lt;</span> <span class="token number">10</span><span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">let</span> newNode <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">createElement</span><span class="token punctuation">(</span><span class="token string">'div'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// 自定义需要插入图片的容器</span>
    <span class="token keyword">let</span> newNodeImage <span class="token operator">=</span> document<span class="token punctuation">.</span><span class="token function">createElement</span><span class="token punctuation">(</span><span class="token string">'img'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// 自定义图片容器</span>
    <span class="token comment">// 由于图片名字的格式为  01.png</span>
    <span class="token comment">// 所以需要通过自定义 的 indexSrc 方法,转换 i 为符合要求的格式</span>
    <span class="token keyword">let</span> index <span class="token operator">=</span> <span class="token function">indexSrc</span><span class="token punctuation">(</span>j<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token comment">// 下面是 div img 的组装了.</span>
    newNodeImage<span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">./images/</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span>index<span class="token interpolation-punctuation punctuation">}</span></span><span class="token string">.png</span><span class="token template-punctuation string">`</span></span><span class="token punctuation">;</span>
    newNode<span class="token punctuation">.</span><span class="token function">appendChild</span><span class="token punctuation">(</span>newNodeImage<span class="token punctuation">)</span><span class="token punctuation">;</span>
    imgWrapper<span class="token punctuation">.</span><span class="token function">appendChild</span><span class="token punctuation">(</span>newNode<span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
  <span class="token comment">// 通过 for 循环语句,给每个 img 的父元素添加点击事件,改变元素内部的 img 的 src 属性</span>
  <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">let</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator">&lt;</span> imgWrapper<span class="token punctuation">.</span>children<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    imgWrapper<span class="token punctuation">.</span>children<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">.</span><span class="token function">addEventListener</span><span class="token punctuation">(</span><span class="token string">'click'</span><span class="token punctuation">,</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">let</span> j <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> j <span class="token operator">&lt;</span> imgWrapper<span class="token punctuation">.</span>children<span class="token punctuation">.</span>length<span class="token punctuation">;</span> j<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">let</span> index <span class="token operator">=</span> <span class="token function">indexSrc</span><span class="token punctuation">(</span>j<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// 同上</span>
        imgWrapper<span class="token punctuation">.</span>children<span class="token punctuation">[</span>j<span class="token punctuation">]</span><span class="token punctuation">.</span>children<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">./images/</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span>index<span class="token interpolation-punctuation punctuation">}</span></span><span class="token string">.png</span><span class="token template-punctuation string">`</span></span><span class="token punctuation">;</span>
      <span class="token punctuation">}</span>
      <span class="token keyword">this</span><span class="token punctuation">.</span>children<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>src <span class="token operator">=</span> <span class="token string">'./images/qq.png'</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
  <span class="token keyword">function</span> <span class="token function">indexSrc</span><span class="token punctuation">(</span><span class="token parameter">index</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token comment">// 这里涉及到 + 的优先级. 过程是  index 先同  1 相加,然会再去同 为空的 '' 相加</span>
    index <span class="token operator">=</span> <span class="token string">''</span> <span class="token operator">+</span> index <span class="token operator">+</span> <span class="token number">1</span><span class="token punctuation">;</span>
    <span class="token keyword">if</span> <span class="token punctuation">(</span>index<span class="token punctuation">.</span>length <span class="token operator">&lt;</span> <span class="token number">2</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      index <span class="token operator">=</span> <span class="token string">'0'</span> <span class="token operator">+</span> index<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">return</span> index<span class="token punctuation">;</span>
  <span class="token punctuation">}</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></div></div><h2 id="更新说明"><a href="#更新说明" class="header-anchor">#</a> 更新说明:</h2> <p>下面的内容部分还有函数部分,写的一团糟糕.建议不要做浏览(由于是第一篇博文,所以做保留处理).<br>
所以我写了一个最简单的示例.看上面部分即可.</p> <h2 id="目的："><a href="#目的：" class="header-anchor">#</a> 目的：</h2> <p>在制作个人网站的时候，我需要在 header 里面加入各大社交网站的直链，可以让更多人，找到我，提供他们的想法。并且去实现那个想法。</p> <h2 id="展现方式："><a href="#展现方式：" class="header-anchor">#</a> 展现方式：</h2> <p>是以一种点击图标的的形式，展示不同社交网站的二维码或者是链接。在开发过程中遇到很多有意思的坑，想分享给大家，希望可以给看到本文的小伙伴提供点帮助。</p> <h2 id="使用技巧"><a href="#使用技巧" class="header-anchor">#</a> 使用技巧</h2> <p>由于在一开始，我们就用了多个程序来进行区分不同事件点击之后，显示不同的图片的功能。但是在一段时间之后发现这样子的代码谈不上什么有价值的，所以我重新花了点时间，把代码重新架构了一番。清理了冗余代码，同时也把程序优化了。
优化之后的程序只要将植入代码，就可以实现简单的点击不同按钮,相同位置展示不同图片功能。</p> <h2 id="项目结构："><a href="#项目结构：" class="header-anchor">#</a> 项目结构：</h2> <div class="language- line-numbers-mode"><pre class="language-text"><code>├──index             // 示例 index
│   ├──js
│   │   └──index.js
│   ├──css
│   │   └──index.js
</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></div></div><h2 id="index-html-详解"><a href="#index-html-详解" class="header-anchor">#</a> index.html 详解</h2> <p>首先页面 header 排版，设置具体结构</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code>├── div            // 示例 header
│   ├── div
│   │   └── img
│   │   └── img
│   │   └── img
</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></div></div><p>在每个 img 中添加 onclick=&quot;hImage()&quot;属性，并给每个&quot;hImage()&quot;中加入&quot;1-3&quot;值；设置这个值，是为了在 index.js 的 hImage()函数中做出对应的判断。</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code><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>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</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>
</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></div></div><h2 id="模态框"><a href="#模态框" class="header-anchor">#</a> 模态框</h2> <div class="language-html line-numbers-mode"><pre class="language-html"><code>├── div            // 示例 模态框
│   ├── div
│   │   └── div
│   │   └── img
│   │   └── h1
</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></div></div><p>第一层 div 设置模态框显示之后的透明色背景。
第二层 div 主要是做模态框显示之后的内容的框架
第二层 div 下面的 div 是关闭模态框按钮。里面加入 onclick=&quot;hShow()&quot; 函数，该函数负责关闭模态框</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hShow()<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>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>第二层 div 下面的 img 则是展示不同图标点击之后，显示的二维码
第二层 div 下面的 h1 则是展示不同图标点击之后，显示的提示信息
这里的模态框设置
使用 position 中的 fixed，来设置模态框的位置与样式。同</p> <div class="language-html line-numbers-mode"><pre class="language-html"><code><span class="token comment">&lt;!--模板--&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-module<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
    <span class="token comment">&lt;!--放置二维码图片--&gt;</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 comment">&lt;!--设置模态框关闭按钮--&gt;</span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hShow()<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 comment">&lt;!--图片放置路径--&gt;</span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>img</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hhtImg<span class="token punctuation">&quot;</span></span> <span class="token attr-name">src</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span><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><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>h1</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>hText<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>h1</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>
</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></div></div><h2 id="index-js-详解"><a href="#index-js-详解" class="header-anchor">#</a> index.js 详解</h2> <div class="language-js line-numbers-mode"><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">'hhtImg'</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">'hText'</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">'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'</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'这里是'</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">'这里是二维码'</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">'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'</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'这里是'</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">'这里是二维码'</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">'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'</span><span class="token punctuation">;</span>
      hhtImg<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'这里是'</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">'这里是二维码'</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">'block'</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">'none'</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><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br></div></div></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated:</span> <span class="time">11/2/2018, 4:24:41 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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