按钮组
将一系列按钮组合在一行上或将它们堆叠在垂直列中。
目录
基本示例
🌐 Basic example
用 .btn-group 封装带有 .btn 的一系列按钮。
🌐 Wrap a series of buttons with .btn in .btn-group.
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-primary">Left</button>
<button type="button" class="btn btn-primary">Middle</button>
<button type="button" class="btn btn-primary">Right</button>
</div>按钮组需要适当的 role 属性和明确的标签，以确保屏幕阅读器等辅助技术能够识别按钮为组并进行提示。对于按钮组使用 role="group"，或对于按钮工具栏使用 role="toolbar"。然后使用 aria-label 或 aria-labelledby 对它们进行标注。
这些类也可以添加到链接组中，作为 .nav 导航组件 的替代方案。
🌐 These classes can also be added to groups of links, as an alternative to the .nav navigation components.
<div class="btn-group">
<a href="#" class="btn btn-primary active" aria-current="page">Active link</a>
<a href="#" class="btn btn-primary">Link</a>
<a href="#" class="btn btn-primary">Link</a>
</div>混合风格
🌐 Mixed styles
<div class="btn-group" role="group" aria-label="Basic mixed styles example">
<button type="button" class="btn btn-danger">Left</button>
<button type="button" class="btn btn-warning">Middle</button>
<button type="button" class="btn btn-success">Right</button>
</div>轮廓样式
🌐 Outlined styles
<div class="btn-group" role="group" aria-label="Basic outlined example">
<button type="button" class="btn btn-outline-primary">Left</button>
<button type="button" class="btn btn-outline-primary">Middle</button>
<button type="button" class="btn btn-outline-primary">Right</button>
</div>复选框和单选按钮组
🌐 Checkbox and radio button groups
将类似按钮的复选框和单选 切换按钮 组合成一个无缝的按钮组。
🌐 Combine button-like checkbox and radio toggle buttons into a seamless looking button group.
<div class="btn-group" role="group" aria-label="Basic checkbox toggle button group">
<input type="checkbox" class="btn-check" id="btncheck1" autocomplete="off">
<label class="btn btn-outline-primary" for="btncheck1">Checkbox 1</label>
<input type="checkbox" class="btn-check" id="btncheck2" autocomplete="off">
<label class="btn btn-outline-primary" for="btncheck2">Checkbox 2</label>
<input type="checkbox" class="btn-check" id="btncheck3" autocomplete="off">
<label class="btn btn-outline-primary" for="btncheck3">Checkbox 3</label>
</div><div class="btn-group" role="group" aria-label="Basic radio toggle button group">
<input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked>
<label class="btn btn-outline-primary" for="btnradio1">Radio 1</label>
<input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
<label class="btn btn-outline-primary" for="btnradio2">Radio 2</label>
<input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
<label class="btn btn-outline-primary" for="btnradio3">Radio 3</label>
</div>按钮工具栏
🌐 Button toolbar
将一组组按钮组合成按钮工具栏，以用于更复杂的组件。根据需要使用实用类来为组、按钮等设置间距。
🌐 Combine sets of button groups into button toolbars for more complex components. Use utility classes as needed to space out groups, buttons, and more.
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
<div class="btn-group me-2" role="group" aria-label="First group">
<button type="button" class="btn btn-primary">1</button>
<button type="button" class="btn btn-primary">2</button>
<button type="button" class="btn btn-primary">3</button>
<button type="button" class="btn btn-primary">4</button>
</div>
<div class="btn-group me-2" role="group" aria-label="Second group">
<button type="button" class="btn btn-secondary">5</button>
<button type="button" class="btn btn-secondary">6</button>
<button type="button" class="btn btn-secondary">7</button>
</div>
<div class="btn-group" role="group" aria-label="Third group">
<button type="button" class="btn btn-info">8</button>
</div>
</div>在工具栏中随意将输入组与按钮组合混合使用。类似上面的示例，但你可能仍然需要一些工具来合理安排间距。
🌐 Feel free to mix input groups with button groups in your toolbars. Similar to the example above, you’ll likely need some utilities though to space things properly.
<div class="btn-toolbar mb-3" role="toolbar" aria-label="Toolbar with button groups">
<div class="btn-group me-2" role="group" aria-label="First group">
<button type="button" class="btn btn-outline-secondary">1</button>
<button type="button" class="btn btn-outline-secondary">2</button>
<button type="button" class="btn btn-outline-secondary">3</button>
<button type="button" class="btn btn-outline-secondary">4</button>
</div>
<div class="input-group">
<div class="input-group-text" id="btnGroupAddon">@</div>
<input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon">
</div>
</div>
<div class="btn-toolbar justify-content-between" role="toolbar" aria-label="Toolbar with button groups">
<div class="btn-group" role="group" aria-label="First group">
<button type="button" class="btn btn-outline-secondary">1</button>
<button type="button" class="btn btn-outline-secondary">2</button>
<button type="button" class="btn btn-outline-secondary">3</button>
<button type="button" class="btn btn-outline-secondary">4</button>
</div>
<div class="input-group">
<div class="input-group-text" id="btnGroupAddon2">@</div>
<input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon2">
</div>
</div>尺寸
🌐 Sizing
不必对组中的每个按钮应用按钮大小类，只需将 .btn-group-* 添加到每个 .btn-group，包括在嵌套多个组时的每一个。
🌐 Instead of applying button sizing classes to every button in a group, just add .btn-group-* to each .btn-group, including each one when nesting multiple groups.
<div class="btn-group btn-group-lg" role="group" aria-label="Large button group">
<button type="button" class="btn btn-outline-primary">Left</button>
<button type="button" class="btn btn-outline-primary">Middle</button>
<button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group" role="group" aria-label="Default button group">
<button type="button" class="btn btn-outline-primary">Left</button>
<button type="button" class="btn btn-outline-primary">Middle</button>
<button type="button" class="btn btn-outline-primary">Right</button>
</div>
<br>
<div class="btn-group btn-group-sm" role="group" aria-label="Small button group">
<button type="button" class="btn btn-outline-primary">Left</button>
<button type="button" class="btn btn-outline-primary">Middle</button>
<button type="button" class="btn btn-outline-primary">Right</button>
</div>嵌套
🌐 Nesting
当你想将下拉菜单与一系列按钮混合使用时，将一个 .btn-group 放入另一个 .btn-group 中。
🌐 Place a .btn-group within another .btn-group when you want dropdown menus mixed with a series of buttons.
<div class="btn-group" role="group" aria-label="Button group with nested dropdown">
<button type="button" class="btn btn-primary">1</button>
<button type="button" class="btn btn-primary">2</button>
<div class="btn-group" role="group">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
</ul>
</div>
</div>垂直变化
🌐 Vertical variation
让一组按钮垂直堆叠显示，而不是水平排列。此处不支持分裂按钮下拉菜单。
🌐 Make a set of buttons appear vertically stacked rather than horizontally. Split button dropdowns are not supported here.
<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
<button type="button" class="btn btn-primary">Button</button>
<button type="button" class="btn btn-primary">Button</button>
<button type="button" class="btn btn-primary">Button</button>
<button type="button" class="btn btn-primary">Button</button>
</div><div class="btn-group-vertical" role="group" aria-label="Vertical button group">
<div class="btn-group" role="group">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
</ul>
</div>
<button type="button" class="btn btn-primary">Button</button>
<button type="button" class="btn btn-primary">Button</button>
<div class="btn-group dropstart" role="group">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
</ul>
</div>
<div class="btn-group dropend" role="group">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
</ul>
</div>
<div class="btn-group dropup" role="group">
<button type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</button>
<ul class="dropdown-menu">
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
<li><a class="dropdown-item" href="#">Dropdown link</a></li>
</ul>
</div>
</div><div class="btn-group-vertical" role="group" aria-label="Vertical radio toggle button group">
<input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio1" autocomplete="off" checked>
<label class="btn btn-outline-danger" for="vbtn-radio1">Radio 1</label>
<input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio2" autocomplete="off">
<label class="btn btn-outline-danger" for="vbtn-radio2">Radio 2</label>
<input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio3" autocomplete="off">
<label class="btn btn-outline-danger" for="vbtn-radio3">Radio 3</label>
</div>