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bootstrap

发布时间：2020-12-17 21:31:53 所属栏目：安全 来源：网络整理
导读：目录 Boostrap前端框架 轮番图 布局容器 列偏移 表格 表单 button按钮 字体图标 导航条 模态框 图书管理系统 Boostrap前端框架 Bootstrap它是基于jQuery，也就意味着你在用bootstrap要先导入jQuery文件！！！ 建议使用3.X版本，不要轻易使用最新版 修改页面

目录

  • Boostrap前端框架
    • 轮番图
    • 布局容器
    • 列偏移
    • 表格
    • 表单
    • button按钮
    • 字体图标
    • 导航条
    • 模态框
    • 图书管理系统

Boostrap前端框架

Bootstrap它是基于jQuery，也就意味着你在用bootstrap要先导入jQuery文件！！！
    
    建议使用3.X版本，不要轻易使用最新版
    
    修改页面样式其实就是修改类属性
    
    
    
    布局容器
    <div class="container "></div>  左右有固定留白
    <div class="container-fluid c1"></div>  全屏展示
    
    
    
    栅格系统
    一个row就表示一行(这一行默认给你均分成了12份,每一份你还可以均分成12份)
    
    首先使用bootstrap先写一个布局容器
    <div class='container'></div>
    <div class='container-fluid'></div>
    
    
    <div class="container">
        <div class="row">  一行
            <div class="col-md-6 c1"></div>  控制你占当前行的多少列
        
    列偏移
    col-md-offset-3 
    
    浮动
    pull-left
    pull-right
    
    表格
    <table class="table table-hover table-bordered table-striped">
    
    按钮
            <button class="btn btn-success">button</button>
            <button class="btn btn-info">button</button>
            <button class="btn btn-warning">button</button>
            <button class="btn btn-danger">button</button>
            <button class="btn btn-primary">button</button>
            <a href="http://www.xiaohuar.com" class="btn btn-primary">Link</a>
            
            
            btn-block 占父标签100%

轮番图

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link rel="stylesheet" href="bootstrap-3.3.7/css/bootstrap.min.css">
    <script src="bootstrap-3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">
            <div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
        <ol class="carousel-indicators">
          <li data-target="#carousel-example-generic" data-slide-to="0" class=""></li>
          <li data-target="#carousel-example-generic" data-slide-to="1" class="active"></li>
          <li data-target="#carousel-example-generic" data-slide-to="2" class=""></li>
        </ol>
        <div class="carousel-inner" role="listbox">
          <div class="item">
            <img data-src="holder.js/1140x500/auto/#777:#555/text:First slide" alt="First slide [1140x500]" src="data:image/svg+xml;base64,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" data-holder-rendered="true">
          </div>
          <div class="item active">
            <img data-src="holder.js/1140x500/auto/#666:#444/text:Second slide" alt="Second slide [1140x500]" src="data:image/svg+xml;base64,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" data-holder-rendered="true">
          </div>
          <div class="item">
            <img data-src="holder.js/1140x500/auto/#555:#333/text:Third slide" alt="Third slide [1140x500]" src="data:image/svg+xml;base64,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" data-holder-rendered="true">
          </div>
        </div>
        <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
          <span class="sr-only">Previous</span>
        </a>
        <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
          <span class="sr-only">Next</span>
        </a>
      </div>
        </div>
    </div>
</div>
</body>
</html>

布局容器

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link rel="stylesheet" href="bootstrap-3.3.7/css/bootstrap.min.css">
    <script src="bootstrap-3.3.7/js/bootstrap.min.js"></script>
    <style>
        .c1 {
            background-color: red;
            height: 50px;
            border: 3px solid black;
        }
        @media screen and (max-width: 600px) {     <!--媒体查询（如根据手机端的宽度调整样式）-->
            .c1 {
            background-color: green;
            height: 50px;
            border: 3px solid black;
        }
        }
    </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-6 col-xs-6 c1"></div>
        <div class="col-md-6 col-xs-6 c1"></div>
        <br>
        <div class="col-md-3 c1"></div>
        <div class="col-md-9 c1"></div>
        <br>
        <div class="col-md-1 c1">
            <div class="row">
                <div class="col-md-6 c1"></div>
                <div class="col-md-6 c1"></div>
            </div>
        </div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>
        <div class="col-md-1 c1"></div>

    </div>
    <div class="row">
        <div class="col-md-9 c1"></div>
    </div>
</div>
</body>
</html>

列偏移

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
    <style>
         .c1 {
            background-color: red;
            height: 50px;
            border: 3px solid black;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">

            <h1>虹桥校区脱产七期最牛逼!</h1>
        <h1>虹桥校区脱产七期最牛逼!<small>确实牛逼</small></h1>
            <p>电视剧发行的风景和史蒂<p class="lead">芬霍金说的，电视剧发</p>行的风景和史蒂芬霍金说的，电视剧发行的风景和史蒂芬霍金说的，电视剧发行的风景和史蒂芬霍金说的电视剧发行的风景和史蒂芬霍金说的</p>
        <abbr title="egon同志就是一个大帅比" class="initialism">egondsb</abbr>





            <blockquote>
  <p>20岁超越30岁，40岁，50岁的人,衣锦还乡,技多不压身</p>
  <footer>上海第一帅:<cite title="Source Title">Jason</cite></footer>
</blockquote>


            <ul class="list-unstyled">
                <li>1</li>
                <li>2</li>
                <li>3</li>
                <li>4</li>
                <li>5</li>
            </ul>


            <pre>&lt;p&gt;Sample text here...&lt;/p&gt;</pre>

        </div>


    </div>
</div>
</body>
</html>

表格

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <table class="table table-hover table-border table-striped ">
                <thead>
                <tr class="active">
                    <th>name</th>
                    <th>password</th>
                    <th>hobby</th>
                </tr>
                </thead>
                <tbody>
                <tr class="success">
                    <td class="text-center">Jason</td>
                    <td>123</td>
                    <td>学习</td>
                </tr>
                <tr class="warning">
                    <td>egon</td>
                    <td>123</td>
                    <td>减肥</td>
                </tr>
                <tr class="danger">
                    <td>kevin</td>
                    <td>123</td>
                    <td>喝腰子汤</td>
                </tr>
                <tr class="info">
                    <td>tank</td>
                    <td>123</td>
                    <td>吃生蚝</td>
                </tr>
                </tbody>
            </table>
        </div>
    </div>
</div>
</body>
</html>

表单

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>

    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>

    <link href="https://cdn.bootcss.com/font-awesome/5.8.2/css/fontawesome.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/font-awesome/5.8.2/js/fontawesome.min.js"></script>

    <link href="https://cdn.bootcss.com/sweetalert/1.1.3/sweetalert.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/sweetalert/2.1.2/sweetalert.min.js"></script>
    <style>
        .c1 {
            margin-top:100px;
        }
        body{
            background-color: #EEEEEE;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-4 col-md-offset-4 c1"> <!--col-md-offset-4向右偏移4个单位-->
            <form class="form-horizontal">
                <!--<from action="">-->

                <!--</from>-->
  <div class="form-group has-error">
      <h3 class="text-center">会员登录<span class="glyphicon glyphicon-user"></span></h3>
    <label for="inputEmail3" class="col-sm-3 control-label ">用户名</label>

    <div class="col-sm-9 ">
      <input type="email" class="form-control" id="inputEmail3" placeholder="用户名">
        <span class="error help-block ">用户名错误</span>
    </div>
  </div>
  <div class="form-group">
    <label for="inputPassword3" class="col-sm-3 control-label">密码</label>
    <div class="col-sm-9">
      <input type="password" class="form-control" id="inputPassword3" placeholder="密码">
    </div>
  </div>
  <div class="form-group">
    <div class="col-sm-offset-3 col-sm-9">
      <div class="checkbox">
        <label>
          <input type="checkbox"> Remember me
        </label>
      </div>
    </div>
  </div>
  <div class="form-group">
    <div class="col-sm-offset-3 col-sm-9">
      <button type="submit" class="btn btn-primary active">Sign in</button>
    </div>
  </div>
</form>
        </div>
    </div>
</div>
<script>
    $('input').on('focus',function(){
        // $(this).parent().parent().removeClass('has-error')
        $(this).next().text('').parent().removeClass('has-error')
    })
//     swal("Write something here:",{
//   content: "input",// })
// .then((value) => {
//   swal(`You typed: ${value}`);
// });
</script>
</body>
</html>

<!-- 先到bootstrap里将代码拷贝过来，然后将col-md-6改为col-md-4（输入框变短了） 加上col-md-offset-4（向右偏移） 和c1（自己写的样式类）
email 和password换成用户名和密码
<label for="inputEmail3" class="col-sm-2 control-label">用户名</label>改为
<label for="inputEmail3" class="col-sm-3 control-label"> 不然用户名这三个字不够位置
col-sm-3字体改小了
 <div class="col-sm-10">改为 <div class="col-sm-9">
 密码那里也一样  剩下的两处也改了  （col-md 或 col-sm 等 后面的两个数加起来等于12 如3+9=12就好了）
 然后再将body背景颜色改掉
 然后在<label for="inputEmail3" class="col-sm-3 control-label">用户名</label>加入<h3 class="text-center">会员登录</h3>-->
 <!--<form class="form-horizontal">-->
                <!--<from action="">-->
                    <!--<label for="">username:<input type="text" class="form-control"></label>-->

                <!--</from>-->
<!--加入以上代码在<div class="col-md-4 col-md-offset-4 c1"> 下，测试加入class="form-control" 边框角变圆了
  <div class="form-group ">加入 has-error用户名飘红
   在用户名输入框之下写上<span class="error help-block">用户名错误</span>
    <button type="submit" class="btn">Sign in<i class="fa fa-bath" aria-hidden="true"></i></button>加上btn-primary active
    会员登录后加上<span class="glyphicon glyphicon-user"></span>-->

button按钮

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-6">
            <button class="btn btn-success">button</button>
            <button class="btn btn-info">button</button>
            <button class="btn btn-warning">button</button>
            <button class="btn btn-danger">button</button>
            <button class="btn btn-primary">button</button>
            <a href="http://www.xiaohuar.com" class="btn btn-primary">link</a>
        </div>
    </div>
</div>
</body>
</html>

字体图标

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
    <link rel="stylesheet" href="../day53/fontaws/css/font-awesome.min.css">
    <style>
        .c1 {
            color:red;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-ms-6">
            <span class="glyphicon glyphicon-heart-empty c1">

            </span>
            <span class="glyphicon glyphicon-heart c1"></span>
            <span class="glyphicon glyphicon-floppy-remove"></span>
        </div>
    </div>
</div>
</body>
</html>

导航条

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-inverse">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links,forms,and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>      <!--导航条-->
<div class="panel panel-primary">
      <div class="panel-heading">
        <h3 class="panel-title">Panel title</h3>
      </div>
      <div class="panel-body">
        Panel content
      </div>
    </div>
<div class="progress">
  <div class="progress-bar progress-bar-striped active" role="progressbar" aria-valuenow="45" aria-valuemin="0" aria-valuemax="100" style="width: 45%">
    <span class="sr-only">45% Complete</span>
  </div>
</div>       <!--滚动进度条    在检查中可以手动调节width来调动进度-->
<div class="container">
  <div class="row">
    <div class="col-md-8">
      <nav aria-label="Page navigation">    <!--分页器-->
  <ul class="pagination">
    <li>
      <a href="#" aria-label="Previous">
        <span aria-hidden="true">&laquo;</span>
      </a>
    </li>
    <li><a href="#">1</a></li>
    <li class="active"><a href="#">2</a></li>   <!--class=active 给当前页激活 当前页有颜色-->
    <li><a href="#">3</a></li>
    <li><a href="#">4</a></li>
    <li><a href="#">5</a></li>
    <li>
      <a href="#" aria-label="Next">
        <span aria-hidden="true">&raquo;</span>
      </a>
    </li>
  </ul>
</nav>
    </div>
  </div>
</div>
<div class="jumbotron">    <!--巨幕-->
  <h1>Hello,world!</h1>
  <p>...</p>
  <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p>
</div>

<div class="page-header">   <!--页头-->
  <h1>Example page header <small>Subtext for header</small></h1>
</div>
</body>
</html>

模态框

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="modal fade" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title">Modal title</h4>
      </div>
      <div class="modal-body">
        <p>One fine body&hellip;</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->
</div><!-- /.modal -->
</body>
</html>

图书管理系统

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
    <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
    <style>
        .table {
            margin-top:20px;
        }
    </style>

</head>
<body>
<nav class="navbar navbar-inverse">
  <div class="container-fluid">   <!--container代表的是两边还有位置，container-fluid是全占满-->
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">图书馆里系统</a>
    </div>

    <!-- Collect the nav links,and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">张江 <span class="sr-only">(current)</span></a></li>
        <li><a href="#">虹桥</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">下拉有惊喜<span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">登录</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">更多操作<span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>
<div class="container-fluid">
    <div class="row">
        <div class="col-md-3 ">
            <div class="list-group">
  <a href="#" class="list-group-item active">
    图书列表
  </a>
  <a href="#" class="list-group-item">作者列表</a>
  <a href="#" class="list-group-item">出版社列表</a>
  <a href="#" class="list-group-item">管理员列表</a>
  <a href="#" class="list-group-item">其他列表</a>
</div>
        </div>    <!--两个div都在同一行显示，已经有自动浮动的效果了-->
        <div class="col-md-9 ">
            <div class="panel panel-primary">
      <div class="panel-heading">
        <h3 class="panel-title">图书管理系统 <span class="glyphicon glyphicon-book pull-right"></span></h3>
      </div>
      <div class="panel-body">
        <form class="form-inline">
  <div class="form-group">

    <div class="input-group">

      <input type="text" class="form-control" id="exampleInputAmount" placeholder="关键字">

    </div>
  </div>
  <button type="submit" class="btn btn-primary">搜索</button>
            <a href="" class="btn btn-default pull-right">新增</a>
</form>
          <table class="table table-striped table-bordered table-hover">
              <thead>
              <tr>
                  <th>#</th>
                  <th>id</th>
                  <th>title</th>
                  <th>price</th>
                  <th>author</th>
                  <th>action</th>
              </tr>
              </thead>
              <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td>小王子</td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
                <tbody>
              <tr>
                  <td>1</td>
                  <td>1</td>
                  <td></td>
                  <td>666</td>
                  <td>yaya</td>
                  <td class="text-center">
                      <a href="" class="btn btn-primary btn-sm">编辑</a>   <!--  btn-sm  button small-->
                      <a href="" class="btn btn-danger btn-sm">删除</a>
                  </td>
              </tr>
              </tbody>
          </table>
          <nav aria-label="Page navigation" class="text-center">
  <ul class="pagination">
    <li>
      <a href="#" aria-label="Previous">
        <span aria-hidden="true">&laquo;</span>
      </a>
    </li>
    <li><a href="#">1</a></li>
    <li><a href="#">2</a></li>
    <li><a href="#">3</a></li>
    <li><a href="#">4</a></li>
    <li><a href="#">5</a></li>
    <li>
      <a href="#" aria-label="Next">
        <span aria-hidden="true">&raquo;</span>
      </a>
    </li>
  </ul>
</nav>
      </div>
    </div>
        </div>
    </div>
</div>
</body>
</html>

（编辑：李大同）

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