<!DOCTYPE html>
<html>
<head>
//1.想要使用bootstrap首先要有下面三个meta
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
//2.其次要引用bootStrap的css 在官网上下载jar包
<link href="./css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<form class="form-inline">
<div class="form-group">
<label for="exampleInputName2">Name</label>
<input type="text" class="form-control" id="exampleInputName2" placeholder="Jane Doe">
</div>
<div class="form-group">
<label for="exampleInputEmail2">Email</label>
<input type="email" class="form-control" id="exampleInputEmail2" placeholder="jane.doe@example.com">
</div>
<button type="submit" class="btn btn-default">Send invitation</button>
</form>
//3.bootstrap是基于jquery的 所以要再导入一个jquery jar包
<script src="./js/jquery-3.4.1.min.js" type="text/javascript" ></script>
//4.再导入一个bootStrap的js jar包
<script src="./js/bootstrap.min.js" type="text/javascript" ></script>
//以上步骤是使用bootStrap的必须步骤
</body>
</html>