手把手教你使用bootstrap完成轮播图
手把手教你使用bootstrap完成轮播图
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效果图:
一、准备相关文件
2. 创建文件夹,基本骨架如下:
3.在index.html的<head>标签中引入相关样式文件
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
//注意jquery引用顺序要在bootstrap前面
<script src="bootstrap/js/jquery.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>
</head>
二、准备好轮播图,剩下的交给bootstrap
1.在bootstrap上找到我们的轮播图js组件,直接复制代码到我们的要实现轮播图的div中,并且更换好自己准备的图片。
<div class="focus">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators 小圆点-->
<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 轮播图-->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="upload/banner1.dpg" alt="...">
<div class="carousel-caption">
demo1
</div>
</div>
<div class="item">
<img src="upload/banner2.dpg" alt="...">
<div class="carousel-caption">
demo2
</div>
</div>
<div class="item">
<img src="upload/banner3.dpg" alt="...">
<div class="carousel-caption">
demo3
</div>
</div>
</div>
<!-- Controls 左右翻页-->
<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>
//设置自动播放换图时间 单位ms
<script>
$('.carousel').carousel({
interval: 2000
})
</script>
最后,如果图片的大小跟框架不匹配,我们可以单独设置其属性,并且把权重设为最高
<style>
.focus {
width: 800px;
height: 300px;
background-color: pink;
margin: 100px auto;
}
.carousel,
.carousel img {
width: 100%;
height: 300px!important;
}
</style>
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