作业1、bootstrap的默认模版样式
实例
<!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"> <title>bootstrap</title> <!--第一步进入bootstrap的css文件--> <link rel="stylesheet" href="static/css/bootstrap.css"> </head> <body> <!--第二步引入jquery文件，bootstrap的js文件是建立在jquery上面的--> <script src="static/js/jquery-3.4.1.js"></script> <!--第三步引入bootstrap的js文件--> <script src="static/js/bootstrap.js"></script> </body> </html>
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作业2、4种阈值栅格布局自适应的案例
实例
<!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">
<title>bootstrap</title>
<!--第一步进入bootstrap的css文件-->
<link rel="stylesheet" href="static/css/bootstrap.css">
<style>
.container .row div:first-of-type{
/*background-color: #AF3434;*/
border: 1px solid rebeccapurple;
border-radius: 5px;
/*min-width: 200px;*/
}
.container .row div:last-of-type{
/*background-color: #3580eb;*/
border: 1px solid rebeccapurple;
border-radius: 5px;
/*min-width: 200px;*/
}
</style>
</head>
<body>
<!--container是bootstrap的框架名称 内部第一个是row行 行里面有12列 xs sm md lg-->
<div class="container">
<div class="row">
<div class="col-xs-4">col-xs-4</div>
<div class="col-xs-8">col-xs-8</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-sm-4">col-sm-4</div>
<div class="col-sm-8">col-sm-8</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-md-4">col-md-4</div>
<div class="col-md-8">col-md-8</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-lg-4">col-lg-4</div>
<div class="col-lg-8">col-lg-8</div>
</div>
</div>
<!--第二步引入jquery文件，bootstrap的js文件是建立在jquery上面的-->
<script src="static/js/jquery-3.4.1.js"></script>
<!--第三步引入bootstrap的js文件-->
<script src="static/js/bootstrap.js"></script>
</body>
</html>运行实例 »
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作业3、bootstrap布局实战案例
实例
<!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"> <title>bootstrap布局小案例</title> <!--第一步进入bootstrap的css文件--> <link rel="stylesheet" href="static/css/bootstrap.css"> </head> <body> <div class="container"> <!--<div class="header">--> <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 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-primary">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> </div> <div class="container"> <div class="row"> <div class="col-xs-12"> <div class="jumbotron"> <h1>Hello, world!</h1> <p>...</p> <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more</a></p> </div> </div> </div> </div> <div class="container"> <div class="row"> <div class="col-xs-3"> <a href="#" class="thumbnail"> <img src="static/images/1.jpg" alt="1" class="img-responsive"> </a> </div> <div class="col-xs-3"> <a href="#" class="thumbnail"> <img src="static/images/2.jpg" alt="1" class="img-responsive"> </a> </div> <div class="col-xs-3"> <a href="#" class="thumbnail"> <img src="static/images/3.jpg" alt="1" class="img-responsive"> </a> </div> <div class="col-xs-3"> <a href="#" class="thumbnail"> <img src="static/images/5.jpg" alt="1" class="img-responsive"> </a> </div> </div> </div> <div class="container"> <div class="row"> <div class="col-xs-12"> <div class="page-header"> <h1>BootStrap <small> school</small></h1> </div> </div> </div> </div> <div class="container"> <div class="row"> <div class="col-xs-4"> <ul class="list-group"> <li class="list-group-item">Cras justo odio</li> <li class="list-group-item">Dapibus ac facilisis in</li> <li class="list-group-item">Morbi leo risus</li> <li class="list-group-item">Porta ac consectetur ac</li> <li class="list-group-item">Vestibulum at eros</li> </ul> </div> <div class="col-xs-8"> <ul class="list-group"> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> <li class="list-group-item"> <span class="badge">14</span> Cras justo odio </li> </ul> </div> </div> </div> <!--第二步引入jquery文件，bootstrap的js文件是建立在jquery上面的--> <script src="static/js/jquery-3.4.1.js"></script> <!--第三步引入bootstrap的js文件--> <script src="static/js/bootstrap.js"></script> </body> </html>
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总结利用bootstrap前端框架，可以快速的生成一些常用的界面布局。但是必须遵守bootstrap的代码规范要求。
框架细节的地方调整可以根据自己的要求重新设置style属性，来达到微调的效果。
栅格系统的优点是可以自适应屏幕大小，自动调整元素的位置和大小。