1.下载bootstrap，下载地址：https://v3.bootcss.com
1.1点击下载
1.2
2.下载好后解压，然后把解压后的文件夹，放到自己的项目下 。该解压文件有三个文件。
3.在自己的HTML文件里<head>标签中引入就能用了，如果用到js还得引入js文件
引入css:
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.min.css">
引入js:
<script src="jquery.js"></script> （jquery.js也是下载好的，放在该项目下）
<script src="bootstrap-3.3.7-dist/js/bootstrap.js"></script>
4.用bootstrap实现轮播图
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>轮播图</title>
<link rel="stylesheet" href="bootstrap-3.3.7-dist/css/bootstrap.min.css">
<style>
/*.item img {*/
/* 300px;*/
/*height: 200px;*/
/*}*/
.carousel {
525px;
height: 210px;
}
img {
525px;
height: 210px;
}
</style>
</head>
<body>
<div id="carousel-example-generic" class="carousel slide center-block" 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>
<li data-target="#carousel-example-generic" data-slide-to="4"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="轮播图1.jpg" alt="...">
<div class="carousel-caption">
图1
</div>
</div>
<div class="item">
<img src="轮播图2.jpg" alt="...">
<div class="carousel-caption">
图2
</div>
</div>
<div class="item">
<img src="轮播图3.jpg" alt="...">
<div class="carousel-caption">
图3
</div>
</div>
<div class="item">
<img src="轮播图4.jpg" alt="...">
<div class="carousel-caption">
图4
</div>
</div>
<div class="item">
<img src="轮播图5.jpg" alt="...">
<div class="carousel-caption">
图5
</div>
</div>
轮播图下面的一些介绍
</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>
<!--下面测试图片居中方式，carousel不能用text-aline:center 实现居中-->
<br><br>
<!--<div class="c1">-->
<!--<img src="轮播图1.jpg">-->
<!--</div>-->
</body>
<script src="jquery.js"></script>
<script src="bootstrap-3.3.7-dist/js/bootstrap.js"></script>
<script>
$('.carousel').carousel({
interval: 2000
})
</script>
</html>