Bootstrap 5 按钮
Bootstrap 2023-08-10 09:26:52小码哥的IT人生shichen
Bootstrap 5 按钮
按钮样式
Bootstrap 5 提供了不同样式的按钮：
示例代码：
<button type="button" class="btn">基础</button>
<button type="button" class="btn btn-primary">主要</button>
<button type="button" class="btn btn-secondary">次要</button>
<button type="button" class="btn btn-success">成功</button>
<button type="button" class="btn btn-info">信息</button>
<button type="button" class="btn btn-warning">警告</button>
<button type="button" class="btn btn-danger">危险</button>
<button type="button" class="btn btn-dark">深色</button>
<button type="button" class="btn btn-light">浅色</button>
<button type="button" class="btn btn-link">链接</button>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>按钮样式</h2>
<button type="button" class="btn">基础</button>
<button type="button" class="btn btn-primary">主要</button>
<button type="button" class="btn btn-secondary">次要</button>
<button type="button" class="btn btn-success">成功</button>
<button type="button" class="btn btn-info">信息</button>
<button type="button" class="btn btn-warning">警告</button>
<button type="button" class="btn btn-danger">危险</button>
<button type="button" class="btn btn-dark">深色</button>
<button type="button" class="btn btn-light">浅色</button>
<button type="button" class="btn btn-link">链接</button>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
按钮类可用于 <a>、<button> 或 <input> 元素：
示例代码：
<a href="#" class="btn btn-success">链接按钮</a>
<button type="button" class="btn btn-success">按钮</button>
<input type="button" class="btn btn-success" value="输入按钮">
<input type="submit" class="btn btn-success" value="提交按钮">
<input type="reset" class="btn btn-success" value="重置按钮">
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Button Elements</h2>
<a href="#" class="btn btn-success">链接按钮</a>
<button type="button" class="btn btn-success">按钮</button>
<input type="button" class="btn btn-success" value="输入按钮">
<input type="submit" class="btn btn-success" value="提交按钮">
<input type="reset" class="btn btn-success" value="重置按钮">
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
为什么我们在链接的 href 属性中写一个 #？
由于我们没有任何可链接到的页面，而且我们不想收到 "404" 消息，因此我们将 # 作为链接。在现实生活中，它应是“搜索”页面的真实 URL。
按钮轮廓
Bootstrap 5 还提供了八个轮廓/边框按钮。
将鼠标移到它们上方，可看到额外的“悬停”效果：
示例代码：
<button type="button" class="btn btn-outline-primary">主要</button>
<button type="button" class="btn btn-outline-secondary">次要</button>
<button type="button" class="btn btn-outline-success">成功</button>
<button type="button" class="btn btn-outline-info">信息</button>
<button type="button" class="btn btn-outline-warning">警告</button>
<button type="button" class="btn btn-outline-danger">危险</button>
<button type="button" class="btn btn-outline-dark">深色</button>
<button type="button" class="btn btn-outline-light text-dark">浅色</button>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>按钮轮廓</h2>
<button type="button" class="btn btn-outline-primary">主要</button>
<button type="button" class="btn btn-outline-secondary">次要</button>
<button type="button" class="btn btn-outline-success">成功</button>
<button type="button" class="btn btn-outline-info">信息</button>
<button type="button" class="btn btn-outline-warning">警告</button>
<button type="button" class="btn btn-outline-danger">危险</button>
<button type="button" class="btn btn-outline-dark">深色</button>
<button type="button" class="btn btn-outline-light text-dark">浅色</button>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
按钮尺寸
对大按钮使用 .btn-lg 类，对小按钮使用 .btn-sm 类：
示例代码：
<button type="button" class="btn btn-primary btn-lg">大型</button>
<button type="button" class="btn btn-primary">默认</button>
<button type="button" class="btn btn-primary btn-sm">小型</button>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>按钮大小</h2>
<button type="button" class="btn btn-primary btn-lg">大型</button>
<button type="button" class="btn btn-primary btn-md">默认</button>
<button type="button" class="btn btn-primary btn-sm">小型</button>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
块级按钮
如需创建跨越父元素整个宽度的块级按钮，请在父元素上使用 .d-grid "helper" 类：
示例代码：
<div class="d-grid">
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
</div>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>块级按钮</h2>
<p>如需创建跨越父元素整个宽度的块级按钮，请在父元素上使用 .d-grid "helper" 类：</p>
<div class="d-grid">
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
</div>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
如果您有很多块级按钮，你可以用 .gap-* 类控制它们之间的间距：
示例代码：
<div class="d-grid gap-3">
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
</div>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>块级按钮</h2>
<p>如果您有很多块级按钮，你可以使用 .gap-* 类控制它们之间的间距：</p>
<div class="d-grid gap-3">
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
<button type="button" class="btn btn-primary btn-block">全宽按钮</button>
</div>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
活动/禁用按钮
按钮可以设置为活动（显示为被按下）或禁用（不可点击）状态：
类 .active 使按钮显示为被按下的状态，而 disabled 属性使按钮不可点击。请注意，<a> 元素不支持 disabled 属性，因此必须使用 .disabled 类使其在视觉上显示为禁用。
示例代码：
<button type="button" class="btn btn-primary active">Active Primary</button>
<button type="button" class="btn btn-primary" disabled>Disabled Primary</button>
<a href="#" class="btn btn-primary disabled">Disabled Link</a>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>按钮状态</h2>
<button type="button" class="btn btn-primary">主要按钮</button>
<button type="button" class="btn btn-primary active">活动的主要按钮</button>
<button type="button" class="btn btn-primary" disabled>禁用的主要按钮</button>
<a href="#" class="btn btn-primary disabled">禁用链接</a>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
加载器按钮
您还可以向按钮添加 "spinner"，您将在我们的 BS5 Spinner 教程中学到更多内容：
示例代码：
<button class="btn btn-primary">
<span class="spinner-border spinner-border-sm"></span>
</button>
<button class="btn btn-primary">
<span class="spinner-border spinner-border-sm"></span>
Loading..
</button>
<button class="btn btn-primary" disabled>
<span class="spinner-border spinner-border-sm"></span>
Loading..
</button>
<button class="btn btn-primary" disabled>
<span class="spinner-grow spinner-grow-sm"></span>
Loading..
</button>
完整实例【亲自试一试】：
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>加载器按钮</h2>
<p>向按钮添加加载器：</p>
<button class="btn btn-primary">
<span class="spinner-border spinner-border-sm"></span>
</button>
<button class="btn btn-primary">
<span class="spinner-border spinner-border-sm"></span>
Loading..
</button>
<button class="btn btn-primary" disabled>
<span class="spinner-border spinner-border-sm"></span>
Loading..
</button>
<button class="btn btn-primary" disabled>
<span class="spinner-grow spinner-grow-sm"></span>
Loading..
</button>
</div>
</body>
</html>
可以使用本站在线JavaScript测试工具测试上述代码运行效果：http://www.phpcodeweb.com/runjs.html
