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class="fa-fw fas fa-archive"></i><span> 归档</span></a></li><li><a class="site-page child" href="/about/"><i class="fa-fw fas fa-heart"></i><span> 关于</span></a></li><li><a class="site-page child" target="_blank" rel="noopener" href="https://buy.dreamlove.top/"><i class="fa-fw fas fa-heart"></i><span> 购物</span></a></li></ul></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><div id="post-info"><h1 class="post-title">defineAsync-Suspense学习</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="2023-10-12T08:37:59.000Z" title="发表于 2023-10-12 08:37:59">2023-10-12</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="2023-10-12T08:37:59.000Z" title="更新于 2023-10-12 08:37:59">2023-10-12</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/vue/">vue</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"></i><span class="post-meta-label">字数总计:</span><span class="word-count">1.2k</span><span class="post-meta-separator">|</span><i class="far fa-clock fa-fw post-meta-icon"></i><span class="post-meta-label">阅读时长:</span><span>5分钟</span></span><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" data-flag-title="defineAsync-Suspense学习"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"><i class="fa-solid fa-spinner fa-spin"></i></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h1 id="前言"><a href="#前言" class="headerlink" title="前言"></a>前言</h1><ul><li>示例代码:<a target="_blank" rel="noopener" href="https://github.com/superBiuBiuMan/defineAsync-Suspense-study">https://github.com/superBiuBiuMan/defineAsync-Suspense-study</a></li></ul><h1 id="defineAsyncComponent"><a href="#defineAsyncComponent" class="headerlink" title="defineAsyncComponent"></a>defineAsyncComponent</h1><ul><li>vue官方文档之异步组件:<a target="_blank" rel="noopener" href="https://cn.vuejs.org/guide/components/async.html">https://cn.vuejs.org/guide/components/async.html</a></li><li>在需要使用组件的时候,我们必须要全部<code>import</code>才可以,就像下面这样子</li></ul><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">import Home from "./components/Home/index.vue"</span><br><span class="line">import Center from "./components/Center/index.vue"</span><br></pre></td></tr></table></figure><ul><li><p>这样子就算你使用了<code>v-show</code>还是<code>v-if</code>,也会加载资源,不相信可以看控制台~</p></li><li><p>所以可以通过<code>defineAsyncComponent</code>进行优化</p></li><li><p>参数</p></li></ul><figure class="highlight js"><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></pre></td><td class="code"><pre><span class="line"><span class="keyword">const</span> <span class="title class_">AsyncFooWithOptions</span> = <span class="title function_">defineAsyncComponent</span>({</span><br><span class="line"> <span class="attr">loader</span>: <span class="function">() =></span> <span class="keyword">import</span>(<span class="string">"./demo.vue"</span>),</span><br><span class="line"> <span class="comment">//加载过程中的组件</span></span><br><span class="line"> <span class="attr">loadingComponent</span>: <span class="title class_">LoadingComponent</span>,</span><br><span class="line"> <span class="comment">//加载失败的组件</span></span><br><span class="line"> <span class="attr">errorComponent</span>: <span class="title class_">ErrorComponent</span>,</span><br><span class="line"> <span class="comment">// 在显示loadingComponent组件之前, 等待多长时间,在加载组件显示之前有一个默认的 200ms 延迟——这是因为在网络状况较好时，加载完成得很快，加载组件和最终组件之间的替换太快可能产生闪烁，反而影响用户感受。</span></span><br><span class="line"> <span class="attr">delay</span>: <span class="number">200</span>,</span><br><span class="line"> <span class="comment">//加载组件的超时时间,如果超过这个值,则显示错误组件, 默认Infinity永不超时, 单位ms</span></span><br><span class="line"> <span class="attr">timeout</span>: <span class="number">3000</span>，</span><br><span class="line"> <span class="comment">//定义组件是否可以挂起, 默认true</span></span><br><span class="line"> <span class="attr">suspensible</span>:<span class="literal">true</span>,</span><br><span class="line"> <span class="comment">/** 异步组件加载失败的回调函数</span></span><br><span class="line"><span class="comment"> * err: 错误信息,</span></span><br><span class="line"><span class="comment"> * retry: 函数, 调用retry尝试重新加载</span></span><br><span class="line"><span class="comment"> * fail: 函数, 指示加载程序结束退出</span></span><br><span class="line"><span class="comment"> * attempts: 记录尝试的次数</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"> <span class="attr">onError</span>: <span class="keyword">function</span>(<span class="params">err, retry, fail, attempts</span>) {</span><br><span class="line"> }</span><br><span class="line">})</span><br><span class="line"></span><br></pre></td></tr></table></figure><ul><li>对应ts</li></ul><figure class="highlight ts"><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></pre></td><td class="code"><pre><span class="line"><span class="keyword">export</span> <span class="keyword">interface</span> <span class="title class_">AsyncComponentOptions</span><T = <span class="built_in">any</span>> {</span><br><span class="line"> <span class="attr">loader</span>: <span class="title class_">AsyncComponentLoader</span><T>;</span><br><span class="line"> loadingComponent?: <span class="title class_">Component</span>;</span><br><span class="line"> errorComponent?: <span class="title class_">Component</span>;</span><br><span class="line"> delay?: <span class="built_in">number</span>;</span><br><span class="line"> timeout?: <span class="built_in">number</span>;</span><br><span class="line"> suspensible?: <span class="built_in">boolean</span>;</span><br><span class="line"> onError?: <span class="function">(<span class="params">error: <span class="built_in">Error</span>, retry: () => <span class="built_in">void</span>, fail: () => <span class="built_in">void</span>, attempts: <span class="built_in">number</span></span>) =></span> <span class="built_in">any</span>;</span><br><span class="line">}</span><br></pre></td></tr></table></figure><ul><li>当我们使用了<code>defineAsyncComponent</code>的时候,就会发现,我们只有在需要的时候才会被导入<ul><li>注意,如果用<code>v-show</code>逻辑判断,依旧会被提前导入,<code>v-if</code>才会在需要的时候导入</li></ul></li></ul><figure class="highlight html"><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></pre></td><td class="code"><pre><span class="line"><span class="tag"><<span class="name">style</span> <span class="attr">scoped</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">style</span>></span></span><br><span class="line"><span class="tag"><<span class="name">template</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleHome"</span>></span>切换到首页<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleCenter"</span>></span>切换到个人中心页面<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">AsyncHome</span> <span class="attr">v-if</span>=<span class="string">"isShowHome"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">AsyncCenter</span> <span class="attr">v-if</span>=<span class="string">"!isShowHome"</span>/></span></span><br><span class="line"><span class="tag"></<span class="name">template</span>></span></span><br><span class="line"><span class="tag"><<span class="name">script</span> <span class="attr">setup</span> <span class="attr">lang</span>=<span class="string">"ts"</span>></span><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">import</span> {defineAsyncComponent,ref} <span class="keyword">from</span> <span class="string">"vue"</span>;</span></span><br><span class="line"><span class="language-javascript"><span class="keyword">import</span> <span class="title class_">Loading</span> <span class="keyword">from</span> <span class="string">"./components/Loading/index.vue"</span></span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title class_">AsyncHome</span> = <span class="title function_">defineAsyncComponent</span>({</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loader</span>: <span class="function">() =></span> <span class="keyword">import</span>(<span class="string">"./components/Home/index.vue"</span>),</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loadingComponent</span>:<span class="title class_">Loading</span>,</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">delay</span>:<span class="number">200</span>,</span></span><br><span class="line"><span class="language-javascript">})</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title class_">AsyncCenter</span> = <span class="title function_">defineAsyncComponent</span>({</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loader</span>: <span class="keyword">async</span> () => {</span></span><br><span class="line"><span class="language-javascript"> <span class="keyword">await</span> <span class="keyword">new</span> <span class="title class_">Promise</span>(<span class="function"><span class="params">resolve</span> =></span> {</span></span><br><span class="line"><span class="language-javascript"> <span class="built_in">setTimeout</span>(<span class="function">() =></span> {<span class="title function_">resolve</span>()},<span class="number">2000</span>);</span></span><br><span class="line"><span class="language-javascript"> <span class="comment">//加载5秒后返回</span></span></span><br><span class="line"><span class="language-javascript"> })</span></span><br><span class="line"><span class="language-javascript"> <span class="keyword">return</span> <span class="keyword">import</span>(<span class="string">"./components/Center/index.vue"</span>)</span></span><br><span class="line"><span class="language-javascript"> },</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loadingComponent</span>:<span class="title class_">Loading</span>,</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">delay</span>:<span class="number">200</span>,</span></span><br><span class="line"><span class="language-javascript">})</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> isShowHome = ref<boolean>(<span class="literal">true</span>);</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title function_">handleHome</span> = (<span class="params"></span>) => {</span></span><br><span class="line"><span class="language-javascript"> isShowHome.<span class="property">value</span> = <span class="literal">true</span>;</span></span><br><span class="line"><span class="language-javascript">}</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title function_">handleCenter</span> = (<span class="params"></span>) => {</span></span><br><span class="line"><span class="language-javascript"> isShowHome.<span class="property">value</span> = <span class="literal">false</span>;</span></span><br><span class="line"><span class="language-javascript">}</span></span><br><span class="line"><span class="language-javascript"></span><span class="tag"></<span class="name">script</span>></span></span><br><span class="line"></span><br></pre></td></tr></table></figure><ul><li>效果,点击<strong>个人中心</strong>后,<strong>延迟200毫秒</strong>后加载AsyncCenter,模拟等待2秒后组件加载完毕</li></ul><p><img src="https://dreamos.oss-cn-beijing.aliyuncs.com/gitblog/202310181934407.gif"></p><h1 id="Suspense"><a href="#Suspense" class="headerlink" title="Suspense"></a>Suspense</h1><ul><li><p>vue官方文档:<a target="_blank" rel="noopener" href="https://cn.vuejs.org/guide/built-ins/suspense.html">https://cn.vuejs.org/guide/built-ins/suspense.html</a></p></li><li><p>作用是什么呢?我理解的就是统一异步加载状态</p><ul><li>这意味着如果一个组件的父链中有Suspense，它将被视为该Suspense的一个异步依赖。我们的组件的加载、错误、延迟和超时选项将被忽略，而是由Suspense来处理。</li></ul></li><li><p><code><Suspense></code> 组件有两个插槽：<code>#default</code> 和 <code>#fallback</code>。两个插槽都只允许<strong>一个</strong>直接子节点。在可能的时候都将显示默认槽中的节点。否则将显示后备槽中的节点。</p><ul><li>两个插槽都只允许<strong>一个</strong>直接子节点意思是</li></ul><figure class="highlight html"><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></pre></td><td class="code"><pre><span class="line">//下面是正确的示例</span><br><span class="line"> <span class="tag"><<span class="name">Suspense</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">template</span> #<span class="attr">default</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">div</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleHome"</span>></span>切换到首页<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleCenter"</span>></span>切换到个人中心页面<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">div</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">template</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">Suspense</span>></span></span><br><span class="line">//下面是错误的示例 vue不会渲染</span><br><span class="line"> <span class="tag"><<span class="name">Suspense</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleHome"</span>></span>切换到首页<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleCenter"</span>></span>切换到个人中心页面<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">Suspense</span>></span></span><br></pre></td></tr></table></figure></li><li><p>代码示例</p></li></ul><figure class="highlight html"><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></pre></td><td class="code"><pre><span class="line"><span class="tag"><<span class="name">style</span> <span class="attr">scoped</span>></span></span><br><span class="line"></span><br><span class="line"><span class="tag"></<span class="name">style</span>></span></span><br><span class="line"><span class="tag"><<span class="name">template</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">Suspense</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">template</span> #<span class="attr">default</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">div</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleHome"</span>></span>切换到首页<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">button</span> @<span class="attr">click</span>=<span class="string">"handleCenter"</span>></span>切换到个人中心页面<span class="tag"></<span class="name">button</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">div</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">template</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">template</span> #<span class="attr">fallback</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">Loading</span>/></span></span><br><span class="line"> <span class="tag"></<span class="name">template</span>></span></span><br><span class="line"> <span class="tag"></<span class="name">Suspense</span>></span></span><br><span class="line"> <span class="tag"><<span class="name">AsyncHome</span> <span class="attr">v-if</span>=<span class="string">"isShowHome"</span>/></span></span><br><span class="line"> <span class="tag"><<span class="name">AsyncCenter</span> <span class="attr">v-if</span>=<span class="string">"!isShowHome"</span>/></span></span><br><span class="line"><span class="tag"></<span class="name">template</span>></span></span><br><span class="line"><span class="tag"><<span class="name">script</span> <span class="attr">setup</span> <span class="attr">lang</span>=<span class="string">"ts"</span>></span><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">import</span> {defineAsyncComponent,ref} <span class="keyword">from</span> <span class="string">"vue"</span>;</span></span><br><span class="line"><span class="language-javascript"><span class="keyword">import</span> <span class="title class_">Loading</span> <span class="keyword">from</span> <span class="string">"./components/Loading/index.vue"</span></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">import</span> <span class="title class_">Loading2</span> <span class="keyword">from</span> <span class="string">"./components/Loading/index.vue"</span></span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title class_">AsyncHome</span> = <span class="title function_">defineAsyncComponent</span>({</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loader</span>: <span class="function">() =></span> <span class="keyword">import</span>(<span class="string">"./components/Home/index.vue"</span>),</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loadingComponent</span>:<span class="title class_">Loading2</span>,</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">delay</span>:<span class="number">200</span>,</span></span><br><span class="line"><span class="language-javascript">})</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title class_">AsyncCenter</span> = <span class="title function_">defineAsyncComponent</span>({</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loader</span>: <span class="keyword">async</span> () => {</span></span><br><span class="line"><span class="language-javascript"> <span class="keyword">await</span> <span class="keyword">new</span> <span class="title class_">Promise</span>(<span class="function"><span class="params">resolve</span> =></span> {</span></span><br><span class="line"><span class="language-javascript"> <span class="built_in">setTimeout</span>(<span class="function">() =></span> {<span class="title function_">resolve</span>()},<span class="number">2000</span>);</span></span><br><span class="line"><span class="language-javascript"> <span class="comment">//加载5秒后返回</span></span></span><br><span class="line"><span class="language-javascript"> })</span></span><br><span class="line"><span class="language-javascript"> <span class="keyword">return</span> <span class="keyword">import</span>(<span class="string">"./components/Center/index.vue"</span>)</span></span><br><span class="line"><span class="language-javascript"> },</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">loadingComponent</span>:<span class="title class_">Loading2</span>,</span></span><br><span class="line"><span class="language-javascript"> <span class="attr">delay</span>:<span class="number">200</span>,</span></span><br><span class="line"><span class="language-javascript">})</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> isShowHome = ref<boolean>(<span class="literal">true</span>);</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title function_">handleHome</span> = (<span class="params"></span>) => {</span></span><br><span class="line"><span class="language-javascript"> isShowHome.<span class="property">value</span> = <span class="literal">true</span>;</span></span><br><span class="line"><span class="language-javascript">}</span></span><br><span class="line"><span class="language-javascript"></span></span><br><span class="line"><span class="language-javascript"><span class="keyword">const</span> <span class="title function_">handleCenter</span> = (<span class="params"></span>) => {</span></span><br><span class="line"><span class="language-javascript"> isShowHome.<span class="property">value</span> = <span class="literal">false</span>;</span></span><br><span class="line"><span class="language-javascript">}</span></span><br><span class="line"><span class="language-javascript"></span><span class="tag"></<span class="name">script</span>></span></span><br><span class="line"></span><br></pre></td></tr></table></figure><ul><li>说明在,异步组件的Loading提示文本应该是<code>Loading2(加载中)</code>,而通过<code>Suspense</code>,自动忽略异步组件Loading状态,采用<code>Suspense</code>当中的加载说明,这一点上面提到过</li></ul><p><img src="https://dreamos.oss-cn-beijing.aliyuncs.com/gitblog/202310181949549.gif"></p><h1 id="参考学习文章"><a href="#参考学习文章" class="headerlink" title="参考学习文章"></a>参考学习文章</h1><ul><li><a target="_blank" rel="noopener" href="https://segmentfault.com/a/1190000040271233">https://segmentfault.com/a/1190000040271233</a></li></ul></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta"><i class="fas fa-circle-user fa-fw"></i>文章作者: </span><span class="post-copyright-info"><a href="https://www.dreamlove.top">梦洁</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta"><i class="fas fa-square-arrow-up-right fa-fw"></i>文章链接: </span><span class="post-copyright-info"><a 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