按钮
1. 样式( .btn-link 链接 .btn-颜色 )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<button type="button" class="btn">基本按钮</button>
<button type="button" class="btn btn-link">链接</button>
<button type="button" class="btn btn-primary">主要按钮</button>
<button type="button" class="btn btn-secondary">次要按钮</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">黑色</button>
<button type="button" class="btn btn-light">浅色</button>
</div>
</body>
</html>
运行结果：
2. 按钮类可用于 < a >, < button >, 或 < input > 元素上
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<a href="#" class="btn btn-info" role="button">链接按钮</a>
<button type="button" class="btn btn-info">按钮</button>
<input type="button" class="btn btn-info" value="输入按钮框" />
<input type="submit" class="btn btn-info" value="提交按钮框" />
</div>
</body>
</html>
运行结果：
3. 设置边框( .btn-outline-颜色)
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<button type="button" class="btn btn-outline-primary">主要按钮</button>
<button type="button" class="btn btn-outline-secondary">次要按钮</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">黑色</button>
<button type="button" class="btn btn-outline-light text-dark">浅色</button>
</div>
</body>
</html>
运行结果：
4. 不同大小的按钮( .btn-lg 大 .btn-sm 小 )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<button type="button" class="btn btn-primary btn-lg">大号按钮</button>
<button type="button" class="btn btn-primary">默认按钮</button>
<button type="button" class="btn btn-primary btn-sm">小号按钮</button>
</div>
</body>
</html>
运行结果：
5. 块级按钮( .btn-block )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<button type="button" class="btn btn-primary btn-block">块级按钮</button>
<button type="button" class="btn btn-primary btn-lg btn-block">大的块级按钮</button>
<button type="button" class="btn btn-primary btn-sm btn-block">小的块级按钮</button>
</div>
</body>
</html>
运行结果：
6. 激活和禁用的按钮( .active disabled )
1. .active 类可以设置按钮是可用的
2. disabled 属性可以设置按钮是不可点击的
3. 注意 < a > 元素不支持 disabled 属性，你可以通过添加 .disabled 类来禁止链接的点击。
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<button type="button" class="btn btn-primary">主要按钮</button>
<button type="button" class="btn btn-primary active">点击后的按钮</button>
<button type="button" class="btn btn-primary" disabled>禁止点击的按钮</button>
<a href="#" class="btn btn-primary disabled">禁止点击的链接</a>
</div>
</body>
</html>
运行结果：
按钮组
1. 按钮组( .btn-group )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<div class="btn-group">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<button type="button" class="btn btn-primary">山东</button>
</div>
</div>
</body>
</html>
运行结果：
2. 按钮组的大小( .btn-group-lg 大 .btn-group-sm 小 )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<h3>大按钮:</h3>
<div class="btn-group btn-group-lg">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<button type="button" class="btn btn-primary">山东</button>
</div>
<h3>默认按钮:</h3>
<div class="btn-group">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<button type="button" class="btn btn-primary">山东</button>
</div>
<h3>小按钮:</h3>
<div class="btn-group btn-group-sm">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<button type="button" class="btn btn-primary">山东</button>
</div>
</div>
</body>
</html>
运行结果：
3. 垂直按钮组( .btn-group-vertical )
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<div class="btn-group-vertical">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<button type="button" class="btn btn-primary">山东</button>
</div>
</div>
</body>
</html>
运行结果：
4. 内嵌按钮组及下拉菜单
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<div class="btn-group">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<div class="btn-group">
<!--
dropdown-toggle 下拉合并项
data-toggle 数据合并
-->
<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">山东</button>
<div class="dropdown-menu">
<a href="#" class="dropdown-item">德州</a>
<a href="#" class="dropdown-item">济南</a>
</div>
</div>
</div>
</div>
</body>
</html>
运行结果：
5. 拆分按钮下拉菜单
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<div class="btn-group">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown">
<span class="caret"></span>
</button>
<div class="dropdown-menu">
<a href="#" class="dropdown-item">南开区</a>
<a href="#" class="dropdown-item">西青区</a>
</div>
</div>
</div>
</body>
</html>
运行结果：
6. 垂直按钮组及下拉菜单
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />
<script src="js/jquery.slim.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/popper.min.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<div class="container">
<div class="btn-group-vertical">
<button type="button" class="btn btn-primary">天津</button>
<button type="button" class="btn btn-primary">北京</button>
<div class="btn-group">
<button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">山东</button>
<div class="dropdown-menu">
<a href="#" class="dropdown-item">德州</a>
<a href="#" class="dropdown-item">济南</a>
</div>
</div>
</div>
</div>
</body>
</html>
运行结果：
