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<input class="form-check-input" type="radio" name="site_theme" id="site_theme_7" value="translucent-cyan">
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<input class="form-check-input" type="radio" name="site_theme" id="site_theme_8" value="dark">
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<li class="lyear-skin-title"><p>LOGO</p></li>
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<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_2" value="color_2">
<label class="form-check-label" for="logo_bg_2"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_3" value="color_3">
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_4" value="color_4">
<label class="form-check-label" for="logo_bg_4"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_5" value="color_5">
<label class="form-check-label" for="logo_bg_5"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_6" value="color_6">
<label class="form-check-label" for="logo_bg_6"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_7" value="color_7">
<label class="form-check-label" for="logo_bg_7"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_8" value="color_8">
<label class="form-check-label" for="logo_bg_8"></label>
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<li class="lyear-skin-title"><p>头部</p></li>
<li class="lyear-skin-li clearfix">
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<input class="form-check-input" type="radio" name="header_bg" id="header_bg_1" value="default" checked="checked">
<label class="form-check-label" for="header_bg_1"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="header_bg" id="header_bg_2" value="color_2">
<label class="form-check-label" for="header_bg_2"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="header_bg" id="header_bg_3" value="color_3">
<label class="form-check-label" for="header_bg_3"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="header_bg" id="header_bg_4" value="color_4">
<label class="form-check-label" for="header_bg_4"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="header_bg" id="header_bg_5" value="color_5">
<label class="form-check-label" for="header_bg_5"></label>
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<input class="form-check-input" type="radio" name="header_bg" id="header_bg_6" value="color_6">
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<input class="form-check-input" type="radio" name="header_bg" id="header_bg_7" value="color_7">
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_2" value="color_2">
<label class="form-check-label" for="sidebar_bg_2"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_3" value="color_3">
<label class="form-check-label" for="sidebar_bg_3"></label>
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<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_4" value="color_4">
<label class="form-check-label" for="sidebar_bg_4"></label>
</div>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_5" value="color_5">
<label class="form-check-label" for="sidebar_bg_5"></label>
</div>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_6" value="color_6">
<label class="form-check-label" for="sidebar_bg_6"></label>
</div>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_7" value="color_7">
<label class="form-check-label" for="sidebar_bg_7"></label>
</div>
<div class="form-check form-check-inline">
<input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_8" value="color_8">
<label class="form-check-label" for="sidebar_bg_8"></label>
</div>
</li>
</ul>
</li>
<!--End 切换主题配色-->
<!--个人头像内容-->
<li class="dropdown">
<a href="javascript:void(0)" data-bs-toggle="dropdown" class="dropdown-toggle">
<img class="avatar-md rounded-circle" src="images/users/avatar.jpg" alt="笔下光年" />
<span style="margin-left: 10px;">笔下光年</span>
</a>
<ul class="dropdown-menu dropdown-menu-end">
<li>
<a class="dropdown-item" href="lyear_pages_profile.html"
href="javascript:void(0)">
<i class="mdi mdi-account"></i>
<span>个人信息</span>
</a>
</li>
<li>
<a class="dropdown-item" href="lyear_pages_edit_pwd.html"
href="javascript:void(0)">
<i class="mdi mdi-lock-outline"></i>
<span>修改密码</span>
</a>
</li>
<li>
<a class="dropdown-item" href="javascript:void(0)">
<i class="mdi mdi-delete"></i>
<span>清空缓存</span>
</a>
</li>
<li class="dropdown-divider"></li>
<li>
<a class="dropdown-item" href="lyear_pages_login_1.html">
<i class="mdi mdi-logout-variant"></i>
<span>退出登录</span>
</a>
</li>
</ul>
</li>
<!--End 个人头像内容-->
</ul>
</nav>
</header>
<!--End 头部信息-->
<!--页面主要内容-->
<main class="lyear-layout-content">
<div class="container-fluid">
<div class="row">
<div class="col-lg-12">
<div class="card">
<header class="card-header"><div class="card-title">通知消息</div></header>
<div class="card-body">
<p>通过 toast、轻量级且易于自定义的警报消息向您的访问者推送通知。</p>
<p>Toast 是轻量级通知，旨在模仿移动和桌面操作系统已经普及的推送通知。它们是用 flexbox 构建的，因此它们很容易对齐和定位。</p>
<h6>概述</h6>
<p>使用 toast 插件时要知道的事情：</p>
<ul>
<li>出于性能原因，Toast 是可选的，因此您必须自己初始化它们。</li>
<li>如果您不指定 <code>autohide: false</code>，Toast 将自动隐藏。</li>
</ul>
<p>该组件的动画效果依赖于 prefers-reduced-motion 媒体查询。请参阅我们可访问性文档的减少运动部分。</p>
<h6>基本的</h6>
<p>为了鼓励可扩展和可预测的 toast，我们建议使用 header 和 body。 Toast 标题使用 <code>display: flex</code>，由于我们的 <code>margin</code> 和 <code>flexbox</code> 实用程序，可以轻松对齐内容。</p>
<p>Toast 可以根据您的需要灵活使用，并且所需的标记非常少。至少，我们需要一个元素来包含您的 “toasted” 内容，并强烈建议使用关闭按钮。</p>
<div class="border-example">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《隋唐演义》既是中国古代一部白话小说，也是一部演绎历史风云、歌颂的经典传奇英雄之作。
</div>
</div>
</div>
<pre><div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《隋唐演义》既是中国古代一部白话小说，也是一部演绎历史风云、歌颂的经典传奇英雄之作。
</div>
</div></pre>
<div class="callout callout-warning mb-3">以前，我们的脚本动态添加了 <code>.hide</code> 类来完全隐藏 toast（使用 <code>display:none</code>，而不仅仅是使用 <code>opacity:0</code>）。现在不再需要了。但是，为了向后兼容，我们的脚本将继续切换类（即使实际上没有必要），直到下一个主要版本。</div>
<h6>在线示例</h6>
<p>单击下面的按钮以显示默认隐藏的 toast（与我们的实用程序一起位于右下角）。</p>
<div class="border-example">
<button type="button" class="btn btn-primary" id="liveToastBtn">显示 toast</button>
<div class="position-fixed bottom-0 end-0 p-3" style="z-index: 11">
<div id="liveToast" class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《历代诗话》，古代中国诗歌理论著作，诗话丛书。清代何文焕辑。
</div>
</div>
</div>
</div>
<pre><button type="button" class="btn btn-primary" id="liveToastBtn">显示 toast</button>
<div class="position-fixed bottom-0 end-0 p-3" style="z-index: 11">
<div id="liveToast" class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《历代诗话》，古代中国诗歌理论著作，诗话丛书。清代何文焕辑。
</div>
</div>
</div></pre>
<p>我们使用以下 JavaScript 来触发我们的 toast 在线演示：</p>
<pre>var toastTrigger = document.getElementById('liveToastBtn')
var toastLiveExample = document.getElementById('liveToast')
if (toastTrigger) {
toastTrigger.addEventListener('click', function () {
var toast = new bootstrap.Toast(toastLiveExample)
toast.show()
})
}</pre>
<h6>半透明</h6>
<p>Toast 有点半透明，可以与下面的东西融为一体。</p>
<div class="border-example bg-dark">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
又名《真仙传道集》或《钟吕传道记》。五代，施肩吾整理。
</div>
</div>
</div>
<pre><div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
又名《真仙传道集》或《钟吕传道记》。五代，施肩吾整理。
</div>
</div></pre>
<h6>堆叠</h6>
<p>您可以通过将 toast 包装在 toast 容器中来堆叠，这将垂直增加一些间距。</p>
<div class="border-example">
<div class="toast-container">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">刚刚</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《管子》基本上是稷下道家推尊管仲之作的集结。即以此为稷下之学的管子学派。
</div>
</div>
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">2秒前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《绣花大盗》是武侠小说家古龙-陆小凤系列的第二个的故事。
</div>
</div>
</div>
</div>
<pre><div class="toast-container">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">刚刚</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《管子》基本上是稷下道家推尊管仲之作的集结。即以此为稷下之学的管子学派。
</div>
</div>
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">2秒前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《绣花大盗》是武侠小说家古龙-陆小凤系列的第二个的故事。
</div>
</div>
</div></pre>
<h6>自定义内容</h6>
<p>通过删除子组件、使用实用程序调整它们或添加您自己的标记来自定义您的 toast。在这里，我们通过删除默认的 <code>.toast-header</code>、从 Bootstrap Icons 添加自定义隐藏图标并使用一些 <code>flexbox</code> 实用程序来调整布局，创建了一个更简单的 toast。</p>
<div class="border-example">
<div class="toast align-items-center" role="alert" aria-live="assertive" aria-atomic="true">
<div class="d-flex">
<div class="toast-body">
《古今词话》是清初一部辑录类词话。
</div>
<button type="button" class="btn-close me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
</div>
</div>
<pre><div class="toast align-items-center" role="alert" aria-live="assertive" aria-atomic="true">
<div class="d-flex">
<div class="toast-body">
《古今词话》是清初一部辑录类词话。
</div>
<button type="button" class="btn-close me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
</div></pre>
<p>或者，您还可以向 toast 添加其他控件和组件。</p>
<div class="border-example">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-body">
《吴越春秋》，东汉赵晔撰，是一部记述春秋时期吴、越两国史事为主的史学著作。
<div class="mt-2 pt-2 border-top">
<button type="button" class="btn btn-primary btn-sm">行动起来</button>
<button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="toast">关闭</button>
</div>
</div>
</div>
</div>
<pre><div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-body">
《吴越春秋》，东汉赵晔撰，是一部记述春秋时期吴、越两国史事为主的史学著作。
<div class="mt-2 pt-2 border-top">
<button type="button" class="btn btn-primary btn-sm">行动起来</button>
<button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="toast">关闭</button>
</div>
</div>
</div></pre>
<h6>配色方案</h6>
<p>在上述示例的基础上，您可以使用我们的颜色和背景实用程序创建不同的吐司配色方案。在这里，我们将 <code>.bg-primary</code> 和 <code>.text-white</code> 添加到 <code>.toast</code>，然后将 <code>.btn-close-white</code> 添加到关闭按钮。对于清晰的边缘，我们使用 <code>.border-0</code> 删除默认边框。</p>
<div class="border-example">
<div class="toast align-items-center text-white bg-primary border-0" role="alert" aria-live="assertive" aria-atomic="true">
<div class="d-flex">
<div class="toast-body">
《唐国史补》又称《国史补》，为中唐人李肇所撰。
</div>
<button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
</div>
</div>
<pre><div class="toast align-items-center text-white bg-primary border-0" role="alert" aria-live="assertive" aria-atomic="true">
<div class="d-flex">
<div class="toast-body">
《唐国史补》又称《国史补》，为中唐人李肇所撰。
</div>
<button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
</div></pre>
<h6>放置</h6>
<p>根据需要使用自定义 CSS 放置 toast。右上角通常用于通知，顶部中间也是如此。如果您一次只显示一个 toast，请将定位样式放在 <code>.toast</code> 上。</p>
<div class="border-example form-floating">
<form>
<div class="mb-3">
<label for="selectToastPlacement">Toast 放置方式</label>
<select class="form-select mt-2" id="selectToastPlacement">
<option value="" selected>选择一个位置...</option>
<option value="top-0 start-0">左上角</option>
<option value="top-0 start-50 translate-middle-x">顶部中心</option>
<option value="top-0 end-0">右上角</option>
<option value="top-50 start-0 translate-middle-y">中左</option>
<option value="top-50 start-50 translate-middle">水平垂直正中</option>
<option value="top-50 end-0 translate-middle-y">中右</option>
<option value="bottom-0 start-0">左下角</option>
<option value="bottom-0 start-50 translate-middle-x">底部中心</option>
<option value="bottom-0 end-0">右下角</option>
</select>
</div>
</form>
<div aria-live="polite" aria-atomic="true" class="bg-dark position-relative border-example-toasts">
<div class="toast-container position-absolute p-3" id="toastPlacement">
<div class="toast">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small>11分钟前</small>
</div>
<div class="toast-body">
《靖康传信录》由李纲著，出自《旧唐书卷六十二列传第十二》。
</div>
</div>
</div>
</div>
</div>
<pre><form>
<div class="mb-3">
<label for="selectToastPlacement">Toast 放置方式</label>
<select class="form-select mt-2" id="selectToastPlacement">
<option value="" selected>选择一个位置...</option>
<option value="top-0 start-0">左上角</option>
<option value="top-0 start-50 translate-middle-x">顶部中心</option>
<option value="top-0 end-0">右上角</option>
<option value="top-50 start-0 translate-middle-y">中左</option>
<option value="top-50 start-50 translate-middle">水平垂直正中</option>
<option value="top-50 end-0 translate-middle-y">中右</option>
<option value="bottom-0 start-0">左下角</option>
<option value="bottom-0 start-50 translate-middle-x">底部中心</option>
<option value="bottom-0 end-0">右下角</option>
</select>
</div>
</form>
<div aria-live="polite" aria-atomic="true" class="bg-dark position-relative border-example-toasts">
<div class="toast-container position-absolute p-3" id="toastPlacement">
<div class="toast">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small>11分钟前</small>
</div>
<div class="toast-body">
《靖康传信录》由李纲著，出自《旧唐书卷六十二列传第十二》。
</div>
</div>
</div>
</div></pre>
<p>对于生成更多通知的系统，请考虑使用包装元素，以便它们可以轻松堆叠。</p>
<div class="border-example bg-dark border-example-toasts p-0">
<div aria-live="polite" aria-atomic="true" class="position-relative">
<div class="toast-container position-absolute top-0 end-0 p-3">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">刚刚</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《青红帮演义》讲述青红帮发展的历史。
</div>
</div>
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">2秒钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《随园诗话》是袁枚的诗歌美学和诗歌理论著作。
</div>
</div>
</div>
</div>
</div>
<pre><div aria-live="polite" aria-atomic="true" class="position-relative">
<!-- 定位: -->
<!-- - `.toast-container` 用于 toast 之间留间隔 -->
<!-- - `.position-absolute`, `top-0` & `end-0` 把 toast 定位到右上角 -->
<!-- - `.p-3` 防止 toast 粘在容器边缘 -->
<div class="toast-container position-absolute top-0 end-0 p-3">
<!-- 然后把 toast 放进去 -->
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">刚刚</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《青红帮演义》讲述青红帮发展的历史。
</div>
</div>
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small class="text-muted">2秒钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《随园诗话》是袁枚的诗歌美学和诗歌理论著作。
</div>
</div>
</div>
</div></pre>
<p>您还可以使用 flexbox 实用程序来水平和/或垂直对齐 toast。</p>
<div class="border-example bg-dark border-example-toasts d-flex">
<div aria-live="polite" aria-atomic="true" class="d-flex justify-content-center align-items-center w-100">
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<svg class="rounded me-2" width="20" height="20" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMidYMid slice" focusable="false" role="img"><rect fill="#33cabb" width="100%" height="100%"></rect></svg>
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《陶庵梦忆》为明朝散文家张岱所著。
</div>
</div>
</div>
</div>
<pre><!-- 用于对齐 toast 的 Flexbox 容器 -->
<div aria-live="polite" aria-atomic="true" class="d-flex justify-content-center align-items-center w-100">
<!-- 然后在里面放toast -->
<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
<div class="toast-header">
<img src="..." class="rounded me-2" alt="...">
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
《陶庵梦忆》为明朝散文家张岱所著。
</div>
</div>
</div></pre>
<h6>可访问性</h6>
<p>Toast 旨在对您的访问者或用户造成小干扰，因此为了帮助那些使用屏幕阅读器和类似辅助技术的人，您应该将 Toast 包装在 aria-live 区域中。屏幕阅读器会自动宣布对活动区域的更改（例如注入/更新 toast 组件），而无需移动用户的焦点或以其他方式打断用户。此外，包括 <code>aria-atomic="true"</code> 以确保始终将整个 toast 宣布为单个（原子）单元，而不是仅仅宣布更改的内容（如果您只更新 toast 的部分内容，这可能会导致问题，或者如果稍后显示相同的 toast 内容）。如果所需的信息对流程很重要，例如对于表单中的错误列表，然后使用警报组件而不是 toast。</p>
<p>请注意，在生成或更新 toast 之前，活动区域需要存在于标记中。如果同时动态生成两者并注入到页面中，一般不会被辅助技术公布。</p>
<p>您还需要根据内容调整 <code>role</code> 和 <code>aria-live</code> 级别。如果是错误等重要消息，请使用 <code>role="alert"</code> <code>aria-live="assertive"</code>，否则使用 <code>role="status"</code> <code>aria-live="polite"</code> 属性。</p>
<p>随着您显示的内容发生变化，请务必更新延迟超时，以便用户有足够的时间阅读 toast。</p>
<pre><div class="toast" role="alert" aria-live="polite" aria-atomic="true" data-bs-delay="10000">
<div role="alert" aria-live="assertive" aria-atomic="true">...</div>
</div></pre>
<p>使用 <code>autohide: false</code> 时，您必须添加一个关闭按钮以允许用户关闭 toast。</p>
<div class="callout callout-warning">上面的示例都是用的img(实际效果中是svg)，这里header上用了字体图标，是为了展示其用法。</div>
<div class="border-example">
<div role="alert" aria-live="assertive" aria-atomic="true" class="toast" data-bs-autohide="false">
<div class="toast-header">
<i class="mdi mdi-information-outline me-2 fs-5 text-info"></i>
<strong class="me-auto">消息</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
元修《辽史》共116卷，包括本纪30卷，志32卷，表8卷，列传45卷，以及国语解1卷。
</div>
</div>
</div>
<pre><div role="alert" aria-live="assertive" aria-atomic="true" class="toast" data-bs-autohide="false">
<div class="toast-header">
<i class="mdi mdi-information-outline me-2 fs-5 text-info"></i>
<strong class="me-auto">Bootstrap</strong>
<small>11分钟之前</small>
<button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
<div class="toast-body">
元修《辽史》共116卷，包括本纪30卷，志32卷，表8卷，列传45卷，以及国语解1卷。
</div>
</div></pre>
<p>虽然从技术上讲，可以在 toast 中添加可聚焦/可操作的控件（例如附加按钮或链接），但您应该避免为自动隐藏 toast 执行此操作。即使您为 toast 设置了较长的延迟超时时间，键盘和辅助技术用户也可能会发现很难及时到达 toast 以采取行动（因为 toast 在显示时没有获得焦点）。如果您绝对必须有进一步的控制，我们建议使用带有 <code>autohide: false</code> 的 toast。</p>
</div>
</div>
</div>
<div class="col-lg-12">
<div class="card">
<header class="card-header"><div class="card-title">用法</div></header>
<div class="card-body">
<p>通过 JavaScript 初始化 toast：</p>
<pre>var toastElList = Array.prototype.slice.call(document.querySelectorAll('.toast'))
var toastList = toastElList.map(function (toastEl) {
return new bootstrap.Toast(toastEl, option)
})</pre>
<h6>触发器</h6>
<p>可以使用 toast 中按钮上的 <code>data</code> 属性来实现解除，如下所示：</p>
<pre><button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button></pre>
<p>或使用 <code>data-bs-target</code> 在 toast 外部的按钮上，如下所示：</p>
<pre><button type="button" class="btn-close" data-bs-dismiss="toast" data-bs-target="#my-toast" aria-label="Close"></button></pre>
<h6>选项</h6>
<p>选项可以通过数据属性或 JavaScript 传递。对于数据属性，将选项名称附加到 <code>data-bs-</code>，如 <code>data-bs-animation=""</code>。</p>
<table class="table">
<thead>
<tr>
<th style="width: 100px;">名称</th>
<th style="width: 100px;">类型</th>
<th style="width: 50px;">默认值</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>animation</code></td>
<td>boolean</td>
<td><code>true</code></td>
<td>对 toast 应用 CSS 淡入淡出过渡</td>
</tr>
<tr>
<td><code>autohide</code></td>
<td>boolean</td>
<td><code>true</code></td>
<td>自动隐藏 toast</td>
</tr>
<tr>
<td><code>delay</code></td>
<td>number</td>
<td>
<code>5000</code>
</td>
<td>延迟隐藏 toast (ms)</td>
</tr>
</tbody>
</table>
<h6>方法</h6>
<div class="callout callout-danger mb-3">
<strong>异步方法和转换</strong>
<p>所有 API 方法都是异步的并开始一个转换。他们在转换开始但在结束之前立即返回给调用者。此外，过渡组件上的方法调用将被忽略。</p>
</div>
<p><strong>show</strong></p>
<p>显示元素的 toast。在 toast 实际显示之前（即在 <code>shown.bs.toast</code> 事件发生之前）返回给调用者。你必须手动调用这个方法，而不是你的 toast 不会显示。</p>
<pre>toast.show()</pre>
<p><strong>hide</strong></p>
<p>隐藏元素的 toast。在 toast 实际被隐藏之前（即在 <code>hidden.bs.toast</code> 事件发生之前）返回给调用者。如果您将自动隐藏设置为 <code>false</code>，则必须手动调用此方法。</p>
<pre>toast.hide()</pre>
<p><strong>dispose</strong></p>
<p>隐藏元素的 toast。您的 toast 将保留在 DOM 上，但不会再显示。</p>
<pre>toast.dispose()</pre>
<p><strong>getInstance</strong></p>
<p>允许您获取与 DOM 元素关联的 toast 实例的静态方法</p>
<pre>var myToastEl = document.getElementById('myToastEl')
var myToast = bootstrap.Toast.getInstance(myToastEl) // Returns a Bootstrap toast instance</pre>
<p><strong>getOrCreateInstance</strong></p>
<p>静态方法，允许您获取与 DOM 元素关联的 toast 实例，或创建一个新实例以防它未初始化</p>
<pre>var myToastEl = document.getElementById('myToastEl')
var myToast = bootstrap.Toast.getOrCreateInstance(myToastEl) // Returns a Bootstrap toast instance</pre>
<h6>事件</h6>
<table class="table">
<thead>
<tr>
<th style="width: 150px;">时间类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>show.bs.toast</code></td>
<td>此事件在调用 <code>show</code> 实例方法时立即触发。</td>
</tr>
<tr>
<td><code>shown.bs.toast</code></td>
<td>当 toast 对用户可见时触发此事件。</td>
</tr>
<tr>
<td><code>hide.bs.toast</code></td>
<td>当调用 <code>hide</code> 实例方法时，会立即触发此事件。</td>
</tr>
<tr>
<td><code>hidden.bs.toast</code></td>
<td>当 toast 完成对用户隐藏时触发此事件。</td>
</tr>
</tbody>
</table>
<pre>var myToastEl = document.getElementById('myToast')
myToastEl.addEventListener('hidden.bs.toast', function () {
// do something...
})</pre>
</div>
</div>
</div>
</div>
</div>
</main>
<!--End 页面主要内容-->
</div>
</div>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/popper.min.js"></script>
<script type="text/javascript" src="js/bootstrap.min.js"></script>
<script type="text/javascript" src="js/perfect-scrollbar.min.js"></script>
<script type="text/javascript" src="js/jquery.cookie.min.js"></script>
<script type="text/javascript" src="js/main.min.js"></script>
<script type="text/javascript">
// 因为是演示，这里默认直接对toast显示
$.each($(".toast").not('#liveToast'), function (a, v) {
var b = new bootstrap.Toast(v, {
autohide: !1
});
b.show();
})
// 点击展示js
var toastTrigger = document.getElementById('liveToastBtn')
var toastLiveExample = document.getElementById('liveToast')
if (toastTrigger) {
toastTrigger.addEventListener('click', function () {
var toast = new bootstrap.Toast(toastLiveExample)
toast.show()
})
}
// toast位置select选择问题
a = document.getElementById('toastPlacement'),
a && document.getElementById('selectToastPlacement').addEventListener('change', function() {
a.dataset.originalClass || (a.dataset.originalClass = a.className),
a.className = a.dataset.originalClass + ' ' + this.value
});
</script>
</body>
</html>
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