前言
大家好!我是九歌,今天我要分享的内容是Bootstrap的入门,首先老规矩先上思维导图。
提示:以下是本篇文章正文内容,下面案例可供参考
一、Bootstrap
学习一门新的技术我们终究都逃不过三个W。What,Why,Where。
1.What——Bootstrap是什么?
Bootstrap包含
2.Why——为什么要学习Bootstrap
3.where——Bootstrap都用在哪些方面呢?
二、使用步骤
1.下载Bootstrap
网址:https://v4.bootcss.com/
下载应该都会吧,下新版的就行,不会可以看文档,简单易上手。
2.引入库
代码如下:
<html>
<head>
<meta charset="utf-8" />
<title></title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<style>
.aa{
color: white;
background-color: #007BFF;
border: 0px;
width: 50px;
height: 30px;
border-radius: 3px;
}
</style>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
</head>
<body>
<div class="container">
<button class="aa">查询</button>
<hr color="red" />
<button class="btn btn-outline-primary">搜索</button>
</div>
<script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
三、 案例
1.查询原生态实现对比Bootstrap方式实现
原生态代码如下:
<html>
<head>
<meta charset="utf-8" />
<title></title>
<!-- <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /> -->
<style>
.aa{
color: white;
background-color: #007BFF;
border: 0px;
width: 50px;
height: 30px;
border-radius: 3px;
}
</style>
<!-- <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/> -->
</head>
<body>
<div class="container">
<button class="aa">查询</button>
<hr color="red" />
<button class="btn btn-outline-primary">搜索</button>
</div>
<!-- <script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
-->
</body>
</html>
原生态效果如下:
Bootstrap方式代码如下:
<html>
<head>
<meta charset="utf-8" />
<title></title>
<!-- <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /> -->
<style>
.aa{
color: white;
background-color: #007BFF;
border: 0px;
width: 50px;
height: 30px;
border-radius: 3px;
}
</style>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
</head>
<body>
<div class="container">
<button class="aa">查询</button>
<hr color="red" />
<button class="btn btn-outline-primary">搜索</button>
</div>
<script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
2. Bootstrap页面在手机浏览器中的展示效果
<html>
<head>
<meta charset="utf-8" />
<title></title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<style>
.aa{
color: white;
background-color: #007BFF;
border: 0px;
width: 50px;
height: 30px;
border-radius: 3px;
}
</style><link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
</head>
<body>
<div class="container">
<button class="aa">查询</button>
<hr color="red" />
<button class="btn btn-outline-primary">搜索</button>
</div>
<script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
3. 首页导航&搜索区域原生态实现
代码如下:
<html>
<head>
<meta charset="utf-8">
<title>案例3</title>
<style type="text/css">
.aa{
height: 50px;
background-color: #F8F9FA;
line-height: 50px;
}
.bb{
float: left;
margin-left: 50px;
}
.cc{
float: right;
margin-right: 50px;
}
.cc a{
margin-left: 10px;
}
.ss{
background-color: #dcdcdc;
height: 100px;
margin: 20px 50px 0px 50px;
text-align: center;
line-height: 100px;
}
.ss button{
color: white;
background-color: #007BFF;
border: 0px;
width: 50px;
height: 30px;
border-radius: 3px;
}
.ss input{
border: 0px;
width: 200px;
height: 25px;
}
</style>
</head>
<body>
<div class="aa">
<div class="bb">
您好,欢迎来到霍格沃兹网上书店!
</div>
<div class="cc">
<a>首页</a>
<a>登录</a>
<a>注册</a>
<a>我的购物车</a>
</div>
</div>
<div class="ss">
<input type="text"/>
<button>查询</button>
</div>
</body>
</html>
效果如下:
4. 首页导航&搜索区域Bootstrap实现搭建书城首页框架
代码如下:
<html>
<head>
<meta charset="utf-8">
<title></title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
<style>
.navbar-collapse{
flex-grow: 0;/* 1、代表制动会占用父容器剩余空间 0代表不占用 */
}
.ss{
height: 100px;
background-color: #dcdcdc;
margin-top: 20px;
}
.form-group{
width: 300px;
margin-left: auto;
margin-right: auto;
margin-top: 31px;
}
</style>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container">
<a class="navbar-brand" href="#">您好,欢迎来到霍格沃兹网上书店!</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavAltMarkup">
<div class="navbar-nav">
<a class="nav-item nav-link active" href="#">首页 <span class="sr-only">(current)</span></a>
<a class="nav-item nav-link" href="#">登陆</a>
<a class="nav-item nav-link" href="#">注册</a>
<a class="nav-item nav-link " href="#">我的购物车</a>
</div>
</div>
</div>
</nav>
<!-- 栅格系统来实现首页的部分框架 -->
<div class="container">
<!-- 第一行 -->
<div class="row ss">
<div class="col">
<form>
<div class="form-group">
<div class="input-group mb-3">
<input type="text" class="form-control" placeholder="书籍关键字" aria-label="Recipient's username"
aria-describedby="basic-addon2">
<div class="input-group-append">
<button class="btn btn-primary" type="button">查询</button>
</div>
</div>
</div>
</form>
</div>
</div>
<div class="row">
<!-- 第二行 -->
<div class="col-3" style="background-color: pink;">
左3-书籍分类
</div>
<div class="col-9" style="background-color: skyblue; ">
<!-- 右9-轮播图&新书上架&热门书籍 -->
<div class="row">
<div class="col">
右9-第一行轮播图
</div>
</div>
<div class="row">
<!-- 右9中新书上架 -->
<div class="col">
①新书上架
</div>
<div class="col">
②新书上架
</div>
<div class="col">
③新书上架
</div>
<div class="col">
④新书上架
</div>
<div class="col">
⑤新书上架
</div>
</div>
<div class="row">
<!-- 右9中热门书籍 -->
<div class="col">
①热门书籍
</div>
<div class="col">
②热门书籍
</div>
<div class="col">
③热门书籍
</div>
<div class="col">
④热门书籍
</div>
<div class="col">
⑤热门书籍
</div>
</div>
</div>
</div>
</div>
<script src="js/jquery-3.3.1.js" type="text/javascript" charset="utf-8"></script>
<script src="js/bootstrap.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>
效果如下:
总结
以上就是今天要讲的内容,本文仅仅简单介绍了bootstrap的使用,如有错误还望指正。谢谢您嘞。