<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>荒天帝</title>
<!--导入css-->
<link rel="stylesheet" href="css/bootstrap.css">
</script>
<!--导入jquery,因为bootstrap依赖jquery,所以要先导入jquery-->
<script type="text/javascript" src="js/jquery-3.3.1.js"></script>
<!--导入bootstrap-->
<script type="text/javascript" src="js/bootstrap.js"></script>
<!--优先支持移动设备-->
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
div {
font-size: 20px;
border: 1px green solid;
}
</style>
</head>
<body>
<!--使用了container默认是俩边空白,中间显示内容-->
<div class="container">
他化自在,他化千古
<br />
<!--栅格系统-->
<div class="row">
<!-- md是电脑屏幕,sm是平板屏幕,xs是手机屏幕,lg是超大屏,把网页拉小来,就需要加上sm或者xs了
后面的1后代表占一格,class="col-md-1 col-xs-3"代表电脑屏幕占一格,但是到了手机屏幕(缩小)就占3格
一行的格数加起来必须等于12-->
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
<div class="col-md-1 col-xs-3">.col-md-1</div>
</div>
<div class="row">
<div class="col-md-8">.col-md-8</div>
<div class="col-md-4">.col-md-4</div>
</div>
<div class="row">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
</div>
<div class="row">
<div class="col-md-6">.col-md-6</div>
<div class="col-md-6">.col-md-6</div>
</div>
</div>
<div>
<!--表格的改版,加一个table类即可-->
<table class="table">
<tr >
<td>
<input type="checkbox"/>
</td>
<td >分类</td>
<td >名称</td>
<td >描述</td>
<td >操作</td>
</tr>
<td>
<input type="checkbox" />
</td>
<td>1</td>
<td>名称</td>
<td>描述</td>
<td>删除</td>
</tr>
<tr >
<td>
<input type="checkbox" />
</td>
<td>2</td>
<td>名称2</td>
<td>描述2</td>
<td>删除</td>
</tr>
</table>
</div>
</body>
</html>
案例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>荒天帝</title>
<!--导入css-->
<link rel="stylesheet" href="css/bootstrap.css" />
<!--导入jquery,因为bootstrap依赖jquery,所以要先导入jquery-->
<script type="text/javascript" src="js/jquery-3.3.1.js"></script>
<!--导入bootstrap-->
<script type="text/javascript" src="js/bootstrap.js"></script>
<!--优先支持移动设备-->
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- <style>
div
{
border: 1px solid green;
}
</style>-->
</head>
<body>
<!--最外层的布局容器-->
<div class="container">
<!--log部分-->
<div class="row">
<div class="col-md-4">
<img src="img/logo2.png" />
</div>
<div class="col-md-4">
<img src="img/header.png" />
</div>
<div class="col-md-4" style="line-height: 70px;height: 50px;font-size: 20px; text-align: center;">
<a href="#">注册</a>
<a href="#">登录</a>
</div>
</div>
<br />
<!--导航条部分-->
<div class="row">
<!--通过修改navbar-default成inverse反转成黑色-->
<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>
<!--修改链接的内容,这个地方一般是放打开首页-->
<a class="navbar-brand" href="#">首页</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">
<!--这才是要跳转的页面-->
<a href="#">xxx1
<!--默认当前选择-->
<span class="sr-only">(current)</span>
</a>
</li>
<li>
<a href="#">xxx2</a>
</li>
<li>
<a href="#">xxx3</a>
</li>
<li>
<a href="#">xxx4</a>
</li>
<!--下拉框的内容-->
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">选项
<span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li>
<a href="#">xxx1</a>
</li>
<li>
<a href="#">xxx2</a>
</li>
<li>
<a href="#">xxx3</a>
</li>
<!--添加一个分割线-->
<li role="separator" class="divider"></li>
<li>
<a href="#">首页</a>
</li>
</ul>
</li>
</ul>
<!--这个是搜索栏,让它右对齐,把navbar-left改成navbar-right即可-->
<form class="navbar-form navbar-right">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
</div>
<!--轮播图部分-->
<div id="myCarousel" class="carousel slide">
<!-- 轮播（Carousel）指标 -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
</ol>
<!-- 轮播（Carousel）项目 -->
<div class="carousel-inner">
<div class="item active">
<img src="img/1.jpg" alt="First slide">
<!--标题-->
<div class="carousel-caption">图片1</div>
</div>
<div class="item">
<img src="img/2.jpg" alt="Second slide">
<div class="carousel-caption">图片2</div>
</div>
<div class="item">
<img src="img/3.jpg" alt="Third slide">
<div class="carousel-caption">图片3</div>
</div>
</div>
<!-- 轮播（Carousel）导航 -->
<a class="carousel-control left" href="#myCarousel" data-slide="prev">
<span _ngcontent-c3="" aria-hidden="true" class="glyphicon glyphicon-chevron-right"></span>
</a>
<a class="carousel-control right" href="#myCarousel" data-slide="next">›</a>
</div>
</div>
</body>
</html>