Bootstrap的基础学习

Bootstrap 2022-10-08

Bootstrap的基础学习

文章目录

概念：

  • 一个前端开发的框架，Bootstrap是基于HTML、CSS、JavaScript的，它简洁灵活，使得Web开发更加快捷。
    • 框架：一个半成品软件，开发人员可以在框架基础上，再进行开发，简化编码。
    • 好处：
      1. 定义了很多的CSS样式和js插件。我们开发人员直接可以使用这些样式和插件的到丰富的页面效果
      2. 相应式布局
        • 同一套页面可以兼容不同的分辨率的设备

快速入门：

  1. 下载Bootstrap
  2. 在项目中将这三个文件夹复制
  3. 创建html页面，引入必要的资源文件
<!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="../css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
</head>
<body>
<h1>你好，世界！</h1>

<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="../js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="../js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</body>
</html>

响应式布局

  • 同一套页面可以兼容不同的分辨率的设备
  • 实现：依赖于栅格系统：将一行平均分为12个格子，可以去指定元素占几个格子
  • 步骤：
    1. 定义容器，相当于之前的table
      • 容器分类：
        1. container：两边留白
        2. container-fluid：每一种设备都是100%宽度
    2. 定义行，相当于之前的tr
    3. 定义元素，指定该元素在不同的设备上，所占的格子数目
      • 样式：col-设备代号-格子数目
        • 设备代号：
          1. xs：超小屏幕，手机（<768px）：col-xs-12
          2. sm：小屏幕 平板（>=768px）
          3. md：中等屏幕 桌面显示器（>=992px）
          4. lg：大屏幕 大桌面显示器（>=1200px）
      • 注意：
        1. 一行中格子超过12，则超出部分自动换行
        2. 栅格类属性可以向上兼容。栅格类适用于与屏幕宽度大于或等于分界点大小的设备
        3. 如果真实设备宽度小于了设置栅格类属性的设备代码的最小值，会一个元素占满整行

CSS样式和JS插件

  • 参考地址

  • 全局CSS样式：

    • 按钮：class=“btn btn-default”

    • 图片：

      • class=“img-responsive”：图片在任何情况下都占100%

      • 图片的形状：

        • <img src="../img/lvugkl.jpg" class="img-responsive img-rounded" alt="Responsive image">//方形
<img src="../img/lvugkl.jpg" class="img-responsive img-circle" alt="Responsive image">//圆形
<img src="../img/lvugkl.jpg" class="img-responsive img-thumbnail" alt="Responsive image">//线框

    • 表格：

      • table
      • table-bordered：加边框
      • table-hover：悬浮

    • 表单

      • 给表单项添加：class=“form-control”

      • <!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!--    integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
    <style>
        .inner{
            border: 1px solid red;
        }
    </style>
</head>
<body>
    <a class="btn btn-default" href="#" role="button">Link</a>
    <button type="submit">Button</button>
    <input type="button" value="Input">
    <input type="submit" value="Submit">
    <br>
    <!-- Standard button -->
    <button type="button" class="btn btn-default">（默认样式）Default</button>

    <!-- Provides extra visual weight and identifies the primary action in a set of buttons -->
    <button type="button" class="btn btn-primary">（首选项）Primary</button>

    <!-- Indicates a successful or positive action -->
    <button type="button" class="btn btn-success">（成功）Success</button>

    <!-- Contextual button for informational alert messages -->
    <button type="button" class="btn btn-info">（一般信息）Info</button>

    <!-- Indicates caution should be taken with this action -->
    <button type="button" class="btn btn-warning">（警告）Warning</button>

    <!-- Indicates a dangerous or potentially negative action -->
    <button type="button" class="btn btn-danger">（危险）Danger</button>

    <!-- Deemphasize a button by making it look like a link while maintaining button behavior -->
    <button type="button" class="btn btn-link">（链接）Link</button>
    <hr>
    <img src="../img/lvugkl.jpg" class="img-responsive" alt="Responsive image">
    <img src="../img/lvugkl.jpg" class="img-responsive img-rounded" alt="Responsive image">
    <img src="../img/lvugkl.jpg" class="img-responsive img-circle" alt="Responsive image">
    <img src="../img/lvugkl.jpg" class="img-responsive img-thumbnail" alt="Responsive image">
    <hr><hr>
    <form>
        <div class="form-group">
            <label for="exampleInputEmail1">Email address</label>
            <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
        </div>
        <div class="form-group">
            <label for="exampleInputPassword1">Password</label>
            <input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
        </div>
        <div class="form-group">
            <label for="exampleInputFile">File input</label>
            <input type="file" id="exampleInputFile">
            <p class="help-block">Example block-level help text here.</p>
        </div>
        <div class="checkbox">
            <label>
                <input type="checkbox"> Check me out
            </label>
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
    </form>
</body>
</html>

  • 组件

    • 导航条

      • <!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!--    integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
    <style>
        .inner{
            border: 1px solid red;
        }
    </style>
</head>
<body>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="js/jquery-3.6.0.min.js"></script>
<!--jquery的js引用要放在Bootstrap的js的引用前下拉菜单才生效-->
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="js/bootstrap.min.js" ></script>

<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>
</body>
</html>

    • 分页条

      • <!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!--    integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
    <style>
        .inner{
            border: 1px solid red;
        }
    </style>
</head>
<body>
<nav aria-label="Page navigation">
    <ul class="pagination">
        <li class="disabled">
            <a href="#" aria-label="Previous">
                <span aria-hidden="true">&laquo;</span>
            </a>
        </li>
        <li class="active"><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>
</body>
</html>

  • 插件：

    • 轮播图

    • <!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!--    integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
    <style>
        img{
            width: 100%;
            height: 100px;
        }
        .inner{
            border: 1px solid red;
        }
    </style>
    <script src="js/jquery-3.6.0.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>

</head>
<body>

<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
    <!-- Indicators -->
    <ol class="carousel-indicators">
        <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
        <li data-target="#carousel-example-generic" data-slide-to="1"></li>
        <li data-target="#carousel-example-generic" data-slide-to="2"></li>
    </ol>

    <!-- Wrapper for slides -->
    <div class="carousel-inner" role="listbox">
        <div class="item active">
            <img src="../img/yh2.jpg" alt="..." width="100%">
            <div class="carousel-caption">
            </div>
        </div>
        <div class="item">
            <img src="../img/yh1.jpg" alt="...">
            <div class="carousel-caption">

            </div>
        </div>
        <div class="item">
            <img src="../img/yh3.jpg" alt="...">
            <div class="carousel-caption">

            </div>
        </div>
    </div>

    <!-- Controls -->
    <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>
</body>
</html>

  • 案例

<!doctype html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
  <title>Bootstrap 101 Template</title>

  <!-- Bootstrap -->
  <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!--    integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->

  <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
  <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
  <!--[if lt IE 9]>
  <![endif]-->
    <style>
        .inner{
            border: 1px solid red;
        }
    </style>
    <script src="js/jquery-3.6.0.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
    <script src="js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
    <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
    <script src="js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>

    <style>
       /*内 边 距*/
      .paddtop1{
        padding-top: 10px;
      }
      .search-btn{
        float: left;
        border: 1px solid #ffc900;
        width: 90px;
        height: 35px;
        background-color: #ffc900;
        text-align: center;
        line-height: 35px;/*输入高是多少px就可以数值居中*/
        margin-top: 15px;
      }
      .search-input{
        float: left;
        border: 2px solid #ffc900;
        width: 400px;
        height: 35px;
        padding-left: 5px;
        margin-top: 15px;
      }
      .jx{
        border-bottom: 2px solid #ffc900;
        padding: 5px;
      }
      .company{
        height: 40px;
        background-color: #ffc900;
        text-align: center;
        line-height: 40px;
        font-size: 8px;
      }
    </style>
</head>
<body>
<!--页眉部分-->
<header class="container-fluid">
  <div class="row">
    <img src="../img/top_banner.jpg" class="img-responsive">
  </div>
  <div class="row paddtop1">
    <div class="col-sm-4">
      <img src="../img/logo.jpg" class="img-responsive">
    </div>
    <div class="col-sm-5">
      <input placeholder="请输入路线名称" class="search-input">
      <a class="search-btn" href="https://www.baidu.com">搜索</a>
    </div>
    <div class="col-sm-3">
      <img src="../img/hotel_tel.png" class="img-responsive">
    </div>
  </div>
<!--  导航栏-->
  <div class="row">

    <nav class="navbar navbar-default">
      <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><a href="#">Link</a></li>
            <li><a href="#">Link</a></li>
            <li><a href="#">Link</a></li>
            <li><a href="#">Link</a></li>
          </ul>
        </div><!-- /.navbar-collapse -->
      </div><!-- /.container-fluid -->
    </nav>
  </div>
<!--  轮播图-->
  <div class="row">

    <div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
      <!-- Indicators -->
      <ol class="carousel-indicators">
        <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
        <li data-target="#carousel-example-generic" data-slide-to="1"></li>
        <li data-target="#carousel-example-generic" data-slide-to="2"></li>
        <li data-target="#carousel-example-generic" data-slide-to="3"></li>
      </ol>

      <!-- Wrapper for slides -->
      <div class="carousel-inner" role="listbox">
        <div class="item active">
          <img src="../img/banner_1.jpg" alt="..." width="100%">
          <div class="carousel-caption">
          </div>
        </div>
        <div class="item">
          <img src="../img/banner_2.jpg" alt="...">
          <div class="carousel-caption">

          </div>
        </div>
        <div class="item">
          <img src="../img/banner_3.jpg" alt="...">
          <div class="carousel-caption">

          </div>
        </div>
        <div class="item">
          <img src="../img/banner_3.jpg" alt="...">
          <div class="carousel-caption">

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        <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
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        <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
        <font color="red">&yen;899</font>
      </div>
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      <div class="thumbnail">
        <img src="../img/jiangxuan_1.jpg" alt="">
        <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
        <font color="red">&yen;899</font>
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        <img src="../img/jiangxuan_1.jpg" alt="">
        <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
        <font color="red">&yen;899</font>
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            <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
            <font color="red">&yen;899</font>
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            <img src="../img/jiangxuan_1.jpg" alt="">
            <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
            <font color="red">&yen;899</font>
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            <img src="../img/jiangxuan_1.jpg" alt="">
            <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
            <font color="red">&yen;899</font>
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        <div class="thumbnail">
          <img src="../img/jiangxuan_1.jpg" alt="">
          <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
          <font color="red">&yen;899</font>
        </div>
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        <div class="thumbnail">
          <img src="../img/jiangxuan_1.jpg" alt="">
          <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
          <font color="red">&yen;899</font>
        </div>
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        <div class="thumbnail">
          <img src="../img/jiangxuan_1.jpg" alt="">
          <p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
          <font color="red">&yen;899</font>
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