1.运行效果如图所示

bootstrap-表单控件——按钮_表单控件


2.实现代码如下

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>表单控件——按钮</title>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" 
    integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" 
    crossorigin="anonymous">

    <!-- 可选的 Bootstrap 主题文件(一般不用引入) -->
    <link rel="stylesheet" 
    href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" 
    integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" 
    crossorigin="anonymous">
</head>
<body>
    <form role="form">
        <div class="form-group">
               <button class="btn" type="button">基础按钮.btn</button>  
               <button class="btn btn-default" type="button">默认按钮.btn-default</button> 
               <button class="btn btn-primary" type="button">主要按钮.btn-primary</button> 
               <button class="btn btn-success" type="button">成功按钮.btn-success</button> 
               <button class="btn btn-info" type="button">信息按钮.btn-info</button> 
               <button class="btn btn-warning" type="button">警告按钮.btn-warning</button> 
               <button class="btn btn-danger" type="button">危险按钮.btn-danger</button> 
               <button class="btn btn-link" type="button">链接按钮.btn-link</button> 
        </div>
    </form>


    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" 
    integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" 
    crossorigin="anonymous"></script>
</body>
</html>