2023-09-22 21:57:28 +08:00
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<!DOCTYPE html><html lang="zh-CN" data-theme="light"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0,viewport-fit=cover"><title>ElementUI使用示例 | The Blog</title><meta name="author" content="Jason"><meta name="copyright" content="Jason"><meta name="format-detection" content="telephone=no"><meta name="theme-color" content="#ffffff"><meta name="description" content="ElementUI官网 一.树形显示-树形控件1.树形显示示例-以谷粒商城项目的商品分类为例 数据中商品分类的数据表,所有的分类数据在同一张表中 商品分类的实体类 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626">
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<meta property="og:title" content="ElementUI使用示例">
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<meta property="og:url" content="https://jasonsgong.gitee.io/posts/50908.html">
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<meta property="og:site_name" content="The Blog">
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<meta property="og:description" content="ElementUI官网 一.树形显示-树形控件1.树形显示示例-以谷粒商城项目的商品分类为例 数据中商品分类的数据表,所有的分类数据在同一张表中 商品分类的实体类 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626">
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2024-01-13 20:28:01 +08:00
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2023-09-22 21:57:28 +08:00
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<meta property="article:published_time" content="2023-05-30T09:41:35.000Z">
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<meta property="article:modified_time" content="2023-09-11T23:36:52.000Z">
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<meta property="article:author" content="Jason">
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<meta property="article:tag" content="前端">
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2024-01-13 20:28:01 +08:00
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<meta name="twitter:image" content="https://jasonsgong.gitee.io/img/2.png"><link rel="shortcut icon" href="/img/%E5%9B%BE%E6%A0%87.png"><link rel="canonical" href="https://jasonsgong.gitee.io/posts/50908.html"><link rel="preconnect" href="//fastly.jsdelivr.net"/><link rel="preconnect" href="//hm.baidu.com"/><link rel="preconnect" href="//busuanzi.ibruce.info"/><link rel="stylesheet" href="/css/index.css"><link rel="stylesheet" href="/cdn/icon/fontawesome-free/css/all.min.css" media="print" onload="this.media='all'"><link rel="stylesheet" href="/cdn/css/snackbar.min.css" media="print" onload="this.media='all'"><link rel="stylesheet" href="/cdn/css/fancybox.min.css" media="print" onload="this.media='all'"><script>var _hmt = _hmt || [];
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2023-09-22 21:57:28 +08:00
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2023-12-09 14:21:01 +08:00
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2023-09-30 18:36:25 +08:00
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2023-09-22 21:57:28 +08:00
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2023-12-10 21:57:00 +08:00
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2023-12-09 19:59:36 +08:00
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2023-09-22 21:57:28 +08:00
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2023-12-09 19:59:36 +08:00
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2023-09-22 21:57:28 +08:00
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if(/iPad|iPhone|iPod|Macintosh/.test(navigator.userAgent)){
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document.documentElement.classList.add('apple')
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detectApple()
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2024-01-13 16:32:52 +08:00
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})(window)</script><!-- hexo injector head_end start --><link rel="stylesheet" href="/cdn/css/swiper.min.css" media="print" onload="this.media='all'"><link rel="stylesheet" href="/cdn/css/swiperstyle.css" media="print" onload="this.media='all'"><!-- hexo injector head_end end --><meta name="generator" content="Hexo 6.3.0"></head><body><div id="sidebar"><div id="menu-mask"></div><div id="sidebar-menus"><div class="avatar-img is-center"><img src="/img/avatar.jpg" onerror="onerror=null;src='/img/loading.gif'" alt="avatar"/></div><div class="sidebar-site-data site-data is-center"><a href="/archives/"><div class="headline">文章</div><div class="length-num">75</div></a><a href="/tags/"><div class="headline">标签</div><div class="length-num">45</div></a><a href="/categories/"><div class="headline">分类</div><div class="length-num">9</div></a></div><br/><div class="menus_items"><div class="menus_item"><a class="site-page" target="_blank" rel="noopener" href="https://gitee.com/JasonsGong/jasonsgong/pages"><i class="fa-fw fas fa-sync-alt"></i><span> 更新</span></a></div><div class="menus_item"><a class="site-page" target="_blank" rel="noopener" href="https://www.tutorialspoint.com/compile_java8_online.php"><i class="fa-fw fas fa-code"></i><span> 代码</span></a></div><div class="menus_item"><a class="site-page" href="/notice/"><i class="fa-fw fas fa-stream"></i><span> 公告</span></a></div><div class="menus_item"><a class="site-page" href="/website/"><i class="fa-fw fas fa-list"></i><span> 网址</span></a></div><div class="menus_item"><a class="site-page" href="/"><i class="fa-fw fas fa-home"></i><span> 主页</span></a></div></div></div></div><div class="post" id="body-wrap"><header class="not-top-img" id="page-header"><nav id="nav"><span id="blog-info"><a href="/" title="The Blog"><img class="site-icon" src="/img/logo.png"/><span class="site-name">The Blog</span></a></span><div id="menus"><div id="search-button"><a class="site-page social-icon search" href="javascript:void(0);"><i class="fas fa-search fa-fw"></i><span> 搜索</span></a></div><div class="menus_items"><div class="menus_item"><a class="site-page" target="_blank" rel="noopener" href="https://gitee.com/JasonsGong/jasonsgong/pages"><i class="fa-fw fas fa-sync-alt"></i><span> 更新</span></a></div><div class="menus_item"><a class="site-page" target="_blank" rel="noopener" href="https://www.tutorialspoint.com/compile_java8_online.php"><i class="fa-fw fas fa-code"></i><span> 代码</span></a></div><div class="menus_item"><a class="site-page" href="/notice/"><i class="fa-fw fas fa-stream"></i><span> 公告</span></a></div><div class="menus_item"><a class="site-page" href="/website/"><i class="fa-fw fas fa-list"></i><span> 网址</span></a></div><div class="menus_item"><a class="site-page" href="/"><i class="fa-fw fas fa-home"></i><span> 主页</span></a></div></div><div id="toggle-menu"><a class="site-page" href="javascript:void(0);"><i class="fas fa-bars fa-fw"></i></a></div></div></nav></header><main class="layout" id="content-inner"><div id="post"><div id="post-info"><h1 class="post-title">ElementUI使用示例</h1><div id="post-meta"><div class="meta-firstline"><span class="post-meta-date"><i class="far fa-calendar-alt fa-fw post-meta-icon"></i><span class="post-meta-label">发表于</span><time class="post-meta-date-created" datetime="2023-05-30T09:41:35.000Z" title="发表于 2023-05-30 17:41:35">2023-05-30</time><span class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2023-09-11T23:36:52.000Z" title="更新于 2023-09-12 07:36:52">2023-09-12</time></span><span class="post-meta-categories"><span class="post-meta-separator">|</span><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E5%89%8D%E7%AB%AF/">前端</a></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-wordcount"><i class="far fa-file-word fa-fw post-meta-icon">
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2023-09-22 21:57:28 +08:00
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<h2 id="一-树形显示-树形控件"><a href="#一-树形显示-树形控件" class="headerlink" title="一.树形显示-树形控件"></a>一.树形显示-树形控件</h2><h3 id="1-树形显示"><a href="#1-树形显示" class="headerlink" title="1.树形显示"></a>1.树形显示</h3><p><strong>示例-以谷粒商城项目的商品分类为例</strong></p>
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<p><strong>数据中商品分类的数据表,所有的分类数据在同一张表中</strong></p>
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<img src="/pictures/image-20230530174911409.png" alt="image-20230530174911409" style="zoom:150%;" />
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<p><strong>商品分类的实体类</strong></p>
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<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> com.atguigu.gulimall.product.entity;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> com.baomidou.mybatisplus.annotation.TableField;</span><br><span class="line"><span class="keyword">import</span> com.baomidou.mybatisplus.annotation.TableId;</span><br><span class="line"><span class="keyword">import</span> com.baomidou.mybatisplus.annotation.TableName;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> java.io.Serializable;</span><br><span class="line"><span class="keyword">import</span> java.util.Date;</span><br><span class="line"><span class="keyword">import</span> java.util.List;</span><br><span class="line"></span><br><span class="line"><span class="keyword">import</span> lombok.Data;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 商品三级分类</span></span><br><span class="line"><span class="comment"> * </span></span><br><span class="line"><span class="comment"> * <span class="doctag">@author</span> JasonGong</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@email</span> JasonGong@gmail.com</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@date</span> 2023-05-19 00:23:36</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@Data</span></span><br><span class="line"><span class="meta">@TableName("pms_category")</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">CategoryEntity</span> <span class="keyword">implements</span> <span class="title class_">Serializable</span> {</span><br><span cl
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<p><strong>封装数据，供前端显示</strong></p>
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<p>controller层</p>
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<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 查询所有的分类以及子分类，以树形结构组装起来</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@RequestMapping("/list/tree")</span></span><br><span class="line"><span class="keyword">public</span> R <span class="title function_">list</span><span class="params">()</span>{</span><br><span class="line"> List<CategoryEntity> entities = categoryService.listWithTree();</span><br><span class="line"> <span class="keyword">return</span> R.ok().put(<span class="string">"data"</span>, entities);</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
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<p>service层，这里主要有一个单独的递归方法，使用的时候会改就行</p>
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<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 查询所有分类，以树形结构显示</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"> <span class="meta">@Override</span></span><br><span class="line"> <span class="keyword">public</span> List<CategoryEntity> <span class="title function_">listWithTree</span><span class="params">()</span> {</span><br><span class="line"> <span class="comment">//查出所有的分类</span></span><br><span class="line"> List<CategoryEntity> entities = categoryDao.selectList(<span class="literal">null</span>);</span><br><span class="line"> <span class="comment">//组装成父子的树形结构</span></span><br><span class="line"> <span class="comment">//找到所有的一级分类</span></span><br><span class="line"> List<CategoryEntity> level1List = entities.stream().filter(categoryEntity -></span><br><span class="line"> <span class="comment">//父级分类的id等于0的就是一级分类</span></span><br><span class="line"> categoryEntity.getParentCid() == <span class="number">0</span></span><br><span class="line"> ).map((menu) -> {</span><br><span class="line"> <span class="comment">//为当前分类的子分类赋值</span></span><br><span class="line"> menu.setChildren(getChildren(menu, entities));</span><br><span class="line"> <span class="keyword">return</span> menu;</span><br><span class="line"> }).sorted((menu1, menu2) -> {</span><br><span class="line"> <span class="comment">//排序</span></span><br><span class="line"> <span class="keyword">return</span> (menu1.getSort() == <span class="literal">null</span> ? <span class="number">0</span> : menu1.getSort()) - (menu2.getSort() == <span class="literal">null</span> ? <span class="number">0</span> : menu2.getSort());</span><br><span class="line"> }).collect(Collectors.toList());</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> level1List;</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 递归查询所有菜单的子菜单</span></span><br><span class="line"><span class="comment"> *</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@param</span> root 当前分类</spa
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<p><strong>返回数据的格式</strong></p>
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<figure class="highlight json"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class=
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<p><strong>前端代码</strong></p>
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<p>模板</p>
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<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br></pre></td><td class="code"><pre><span class="line"><template></span><br><span class="line"> <div></span><br><span class="line"> <!-- 树形控件 --></span><br><span class="line"> <el-tree</span><br><span class="line"> :data="menus"</span><br><span class="line"> :props="defaultProps"</span><br><span class="line"> @node-click="handleNodeClick"</span><br><span class="line"> ></el-tree></span><br><span class="line"> </div></span><br><span class="line"></template></span><br><span class="line"></span><br><span class="line"><script></span><br><span class="line"> export default {</span><br><span class="line"> data() {</span><br><span class="line"> return {</span><br><span class="line"> data: [],//发送请求获取的数据(比如 return R.ok().put("data", entities);里面的data)</span><br><span class="line"> defaultProps: {</span><br><span class="line"> children: 'children',//实体类中的属性（比如:private List<CategoryEntity> children;)</span><br><span class="line"> label: 'label'//需要显示的属性的属性名(比如商品分类名，属性名是name,这里就填name)</span><br><span class="line"> }</span><br><span class="line"> };</span><br><span class="line"> },</span><br><span class="line"> methods: {</span><br><span class="line"> handleNodeClick(data) {</span><br><span class="line"> console.log(data);</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> };</span><br><span class="line"></script></span><br></pre></td></tr></table></figure>
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<p>完整代码</p>
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<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br></pre></td><td class="code"><pre><span class="line"><template></span><br><span class="line"> <div></span><br><span class="line"> <!-- 树形控件 --></span><br><span class="line"> <el-tree</span><br><span class="line"> :data="menus"</span><br><span class="line"> :props="defaultProps"</span><br><span class="line"> @node-click="handleNodeClick"</span><br><span class="line"> ></el-tree></span><br><span class="line"> </div></span><br><span class="line"></template></span><br><span class="line"></span><br><span class="line"><script></span><br><span class="line">export default {</span><br><span class="line"> //定义变量</span><br><span class="line"> data() {</span><br><span class="line"> return {</span><br><span class="line"> menus: [],</span><br><span class="line"> defaultProps: {//这里的配置看官方的文档</span><br><span class="line"> children: "children",//父节点上的子节点</span><br><span class="line"> label: "name",//每个对象要显示的属性值,比如我们当前要显示商品分类中的分类名的值，这里就改成name</span><br><span class="line"> },</span><br><span class="line"> };</span><br><span class="line"> },</span><br><span class="line"> //钩子函数</span><br><span class="line"> created() {</span><br><span class="line"> //调用获取商品分类数据的方法</span><br><span class="line"> this.getMenus();</span><br><span class="line"> },</span><br><span class="line"></span><br><span class="line"> //方法</span><br><span class="line"> methods: {</span><br><span class="line"> handleNodeClick(data) {</span><br><span class="line"> console.log(data);</span><br><span class="line"> },</span><br><span class="line"> //获取所有的菜单</span><br><span class="line"> getMenus() {</span><br><span class="line"> this.$http({</span><br><span class="line"> url: this.$http.adornUrl("/product/category/list/tree"),</span><br><span class="line"> method: "get",</span><br><span class="line"> }).then(({ data }) => {</span><br><span class="line"> this.menus = data.data;</span><br><span class="line"> });</span><br><span class="line"> },</span><br><span
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<p><strong>显示效果</strong></p>
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<img src="/pictures/image-20230530181102832.png" alt="image-20230530181102832" style="zoom:150%;" />
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<h3 id="2-树形控件的删除、添加"><a href="#2-树形控件的删除、添加" class="headerlink" title="2.树形控件的删除、添加"></a>2.树形控件的删除、添加</h3><p>页面的显示效果</p>
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<p><img src="/pictures/image-20230605145343384.png" alt="image-20230605145343384"></p>
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<p>使用的组件 在树形控件的基础上添加相关的代码</p>
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<img src="/pictures/image-20230605145433594.png" alt="image-20230605145433594" style="zoom:150%;" />
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<p>添加的时候弹出的对话框使用的组件</p>
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<img src="/pictures/image-20230605153935967.png" alt="image-20230605153935967" style="zoom:150%;" />
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<img src="/pictures/image-20230605154629290.png" alt="image-20230605154629290" style="zoom:150%;" />
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<p><strong>前端代码的实现</strong></p>
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<p>Tips：删除成功之后依然展开删除的节点</p>
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<p>删除和添加的前端代码</p>
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<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span c
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<p><strong>后端代码</strong></p>
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<p>删除的后端代码</p>
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<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 删除</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"> <span class="meta">@RequestMapping("/delete")</span></span><br><span class="line"> <span class="comment">//@RequiresPermissions("product:category:delete")</span></span><br><span class="line"> <span class="keyword">public</span> R <span class="title function_">delete</span><span class="params">(<span class="meta">@RequestBody</span> Long[] catIds)</span> {</span><br><span class="line"> <span class="comment">//检查当前删除的菜单，是否被别的地方引用</span></span><br><span class="line"> <span class="comment">//categoryService.removeByIds(Arrays.asList(catIds));</span></span><br><span class="line"> categoryService.removeMenuByIds(Arrays.asList(catIds));</span><br><span class="line"> <span class="keyword">return</span> R.ok();</span><br><span class="line"> }</span><br></pre></td></tr></table></figure>
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<p>添加的后端代码</p>
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<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 保存</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@RequestMapping("/save")</span></span><br><span class="line"><span class="comment">//@RequiresPermissions("product:category:save")</span></span><br><span class="line"><span class="keyword">public</span> R <span class="title function_">save</span><span class="params">(<span class="meta">@RequestBody</span> CategoryEntity category)</span> {</span><br><span class="line"> categoryService.save(category);</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> R.ok();</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
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<p>实现的效果</p>
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<p><img src="/pictures/image-20230605163004850.png" alt="image-20230605163004850"></p>
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2024-01-13 20:28:01 +08:00
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</article><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/%E5%89%8D%E7%AB%AF/">前端</a></div><div class="post_share"><div class="social-share" data-image="/img/2.png" data-sites="wechat,weibo,qq"></div><link rel="stylesheet" href="/cdn/css/share.min.css" media="print" onload="this.media='all'"><script src="/cdn/js/social-share.min.js" defer></script></div></div><div class="post-reward"><div class="reward-button"><i class="fas fa-qrcode"></i> 打赏</div><div class="reward-main"><ul class="reward-all"><li class="reward-item"><a href="/img/wechat.jpg" target="_blank"><img class="post-qr-code-img" src="/img/wechat.jpg" alt="微信"/></a><div class="post-qr-code-desc">微信</div></li><li class="reward-item"><a href="/img/alipay.jpg" target="_blank"><img class="post-qr-code-img" src="/img/alipay.jpg" alt="支付宝"/></a><div class="post-qr-code-desc">支付宝</div></li></ul></div></div><br/><div id="post-comment"><div class="comment-head"><div class="comment-headline"><i class="fas fa-edit fa-fw"></i><span> 评论</span></div></div><div class="comment-wrap"><div><div id="gitalk-container"></div></div></div></div></div><div class="aside-content" id="aside-content"><div class="card-widget card-info"><div class="is-center"><div class="avatar-img"><img src="/img/avatar.jpg" onerror="this.onerror=null;this.src='/img/loading.gif'" alt="avatar"/></div><div class="author-info__name">Jason</div><div class="author-info__description">Debug the World！</div></div><div class="card-info-data site-data is-center"><a href="/archives/"><div class="headline">文章</div><div class="length-num">75</div></a><a href="/tags/"><div class="headline">标签</div><div class="length-num">45</div></a><a href="/categories/"><div class="headline">分类</div><div class="length-num">9</div></a></div><a id="card-info-btn"><i class="fab fa-microsoft"></i><span>Ctrl + D 收藏</span></a><div class="card-info-social-icons is-center"><a class="social-icon" href="https://github.com/JasonsGong" target="_blank" title="Github"><i class="fab fa-github"></i></a><a class="social-icon" href="tencent://AddContact/?fromId=45&fromSubId=1&subcmd=all&uin=2602183349&website=www.oicqzone.com" target="_blank" title="QQ"><i class="fab fa-qq"></i></a><a class="social-icon" href="mailto:2602183349@qq.com" target="_blank" title="Email"><i class="fas fa-envelope-open-text"></i></a><a class="social-icon" href="https://gitee.com/JasonsGong/jasonsgong" target="_blank" title="代码仓库"><i class="fas fa-database"></i></a></div></div><div class="card-widget card-announcement"><div class="item-headline"><i class="fas fa-bullhorn fa-shake"></i><span>公告</span></div><div class="announcement_content">本网站是静态网站,更新页面资源请使用Ctrl+F5;若网站内文章对你有帮助,请使用Ctrl+D收藏该网站！</div></div><div class="sticky_layout"><div class="card-widget" id="card-toc"><div class="item-headline"><i class="fas fa-stream"></i><span>目录</span><span class="toc-percentage"></span></div><div class="toc-content is-expand"><ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#%E4%B8%80-%E6%A0%91%E5%BD%A2%E6%98%BE%E7%A4%BA-%E6%A0%91%E5%BD%A2%E6%8E%A7%E4%BB%B6"><span class="toc-text">一.树形显示-树形控件</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#1-%E6%A0%91%E5%BD%A2%E6%98%BE%E7%A4%BA"><span class="toc-text">1.树形显示</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#2-%E6%A0%91%E5%BD%A2%E6%8E%A7%E4%BB%B6%E7%9A%84%E5%88%A0%E9%99%A4%E3%80%81%E6%B7%BB%E5%8A%A0"><span class="toc-text">2.树形控件的删除、添加</span></a></li></ol></li></ol></div></div><div class="card-widget card-recent-post"><div class="item-headline"><i class="fas fa-history"></i><span>最近更新</span></div><div class="aside-list"><div class="aside-list-item"><a class="thumbnail" href="/posts/40733.html" title="免费好用的PDF工具"><img src="/img/9.png" onerror="this.onerror=null;this.src='/img/404.jpg
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2024-01-13 16:32:52 +08:00
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var gitalk = new Gitalk(Object.assign({
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repo: 'BlogComment',
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owner: 'JasonsGong',
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id: 'f2e25ebe0986894dc7be62fbb7aaf4e2',
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updateCountCallback: commentCount
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},null))
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gitalk.render('gitalk-container')
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}
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if (typeof Gitalk === 'function') initGitalk()
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else {
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2024-01-13 17:50:17 +08:00
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getCSS('/cdn/css/gitalk.min.css')
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getScript('/cdn/js/gitalk.min.js').then(initGitalk)
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2024-01-13 16:32:52 +08:00
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}
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}
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function commentCount(n){
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let isCommentCount = document.querySelector('#post-meta .gitalk-comment-count')
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isCommentCount.textContent= n
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}
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if ('Gitalk' === 'Gitalk' || !true) {
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if (true) btf.loadComment(document.getElementById('gitalk-container'), loadGitalk)
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else loadGitalk()
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function loadOtherComment () {
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loadGitalk()
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}
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}</script></div><script async data-pjax src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script><div id="local-search"><div class="search-dialog"><nav class="search-nav"><span class="search-dialog-title">搜索</span><span id="loading-status"></span><button class="search-close-button"><i class="fas fa-times"></i></button></nav><div class="is-center" id="loading-database"><i class="fas fa-spinner fa-pulse"></i><span> 数据库加载中</span></div><div class="search-wrap"><div id="local-search-input"><div class="local-search-box"><input class="local-search-box--input" placeholder="搜索文章" type="text"/></div></div><br/><div class="no-result" id="local-search-results"></div><div id="local-search-stats-wrap"></div></div></div><div id="search-mask"></div><script src="/js/search/local-search.js"></script></div></div><!-- hexo injector body_end start --><script data-pjax>
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2023-09-22 21:57:28 +08:00
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function butterfly_swiper_injector_config(){
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var parent_div_git = document.getElementById('recent-posts');
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2024-01-13 20:28:01 +08:00
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var item_html = '<div class="recent-post-item" style="height: auto;width: 100%"><div class="blog-slider swiper-container-fade swiper-container-horizontal" id="swiper_container"><div class="blog-slider__wrp swiper-wrapper" style="transition-duration: 0ms;"><div class="blog-slider__item swiper-slide" style="width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><a class="blog-slider__img" href="posts/19306.html" alt=""><img width="48" height="48" src="/img/1.png" alt="" onerror="this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;"/></a><div class="blog-slider__content"><span class="blog-slider__code">2023-04-21</span><a class="blog-slider__title" href="posts/19306.html" alt="">Docker容器化技术</a><div class="blog-slider__text">Docker</div><a class="blog-slider__button" href="posts/19306.html" alt="">详情 </a></div></div><div class="blog-slider__item swiper-slide" style="width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><a class="blog-slider__img" href="posts/47003.html" alt=""><img width="48" height="48" src="/img/4.png" alt="" onerror="this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;"/></a><div class="blog-slider__content"><span class="blog-slider__code">2023-03-10</span><a class="blog-slider__title" href="posts/47003.html" alt="">常用正则表达式大全</a><div class="blog-slider__text">正则表达式</div><a class="blog-slider__button" href="posts/47003.html" alt="">详情 </a></div></div><div class="blog-slider__item swiper-slide" style="width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><a class="blog-slider__img" href="posts/20683.html" alt=""><img width="48" height="48" src="/img/1.png" alt="" onerror="this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;"/></a><div class="blog-slider__content"><span class="blog-slider__code">2023-06-05</span><a class="blog-slider__title" href="posts/20683.html" alt="">Linux中开发环境的搭建</a><div class="blog-slider__text">环境搭建</div><a class="blog-slider__button" href="posts/20683.html" alt="">详情 </a></div></div><div class="blog-slider__item swiper-slide" style="width: 750px; opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><a class="blog-slider__img" href="posts/63333.html" alt=""><img width="48" height="48" src="/img/10.png" alt="" onerror="this.src=https://unpkg.zhimg.com/akilar-candyassets/image/loading.gif; this.onerror = null;"/></a><div class="blog-slider__content"><span class="blog-slider__code">2023-06-03</span><a class="blog-slider__title" href="posts/63333.html" alt="">开发环境的搭建</a><div class="blog-slider__text">环境搭建</div><a class="blog-slider__button" href="posts/63333.html" alt="">详情 </a></div></div></div><div class="blog-slider__pagination swiper-pagination-clickable swiper-pagination-bullets"></div></div></div>';
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2023-10-28 11:08:26 +08:00
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parent_div_git.insertAdjacentHTML("afterbegin",item_html)
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2023-09-22 21:57:28 +08:00
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}
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var elist = 'undefined'.split(',');
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var cpage = location.pathname;
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2023-10-28 10:47:20 +08:00
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var epage = 'all';
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2023-09-22 21:57:28 +08:00
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var flag = 0;
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if ((epage ==='all')&&(flag == 0)){
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butterfly_swiper_injector_config();
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butterfly_swiper_injector_config();
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2024-01-07 15:49:43 +08:00
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</script><script defer src="/cdn/js/swiper.min.js"></script><script defer data-pjax src="/cdn/js/swiper_init.js"></script><!-- hexo injector body_end end --></body></html>
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