Bootstrap 表单插件
前置和附加输入
我们可以在任何基于文本的输入之前或之后添加文本、图标或按钮。使用.input-group-addon类在一个<span>元素中封装文本或图标，并将其放置在<input>元素之前或之后。
在<div>中封装<span>和基于文本的<input>，然后应用.input-group类。
Bootstrap只能预先添加或附加到基于文本的输入。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<form>
<div class="row">
<div class="col-xs-4">
<div class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
<input type="text" class="form-control" placeholder="Username">
</div>
</div>
<div class="col-xs-4">
<div class="input-group">
<input type="text" class="form-control" placeholder="Amount">
<span class="input-group-addon">.00</span>
</div>
</div>
<div class="col-xs-4">
<div class="input-group">
<span class="input-group-addon">$</span>
<input type="text" class="form-control" placeholder="US Dollar">
<span class="input-group-addon">.00</span>
</div>
</div>
</div>
</form>
<hr>
<form>
<div class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-user"></span></span>
<input type="text" class="form-control" placeholder="Username">
</div>
<br>
<div class="input-group">
<input type="text" class="form-control" placeholder="Amount">
<span class="input-group-addon">.00</span>
</div>
<br>
<div class="input-group">
<span class="input-group-addon">$</span>
<input type="text" class="form-control" placeholder="US Dollar">
<span class="input-group-addon">.00</span>
</div>
</form>
</div>
</body>
</html>例1
我们可以在input组的插件而不是文本中放置复选框或单选按钮。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<form>
<div class="row">
<div class="col-xs-6">
<div class="input-group">
<span class="input-group-addon">
<input type="checkbox">
</span>
<input type="text" class="form-control">
</div>
</div>
<div class="col-xs-6">
<div class="input-group">
<span class="input-group-addon">
<input type="radio">
</span>
<input type="text" class="form-control">
</div>
</div>
</div>
</form>
<hr>
<form>
<div class="input-group">
<span class="input-group-addon">
<input type="checkbox">
</span>
<input type="text" class="form-control">
</div>
<br>
<div class="input-group">
<span class="input-group-addon">
<input type="radio">
</span>
<input type="text" class="form-control">
</div>
</form>
</div>
</body>
</html>例2
我们可以添加或附加按钮，而不是文本。在<span>元素中封装按钮，并应用类.input-group-btn，而不是.input-group-addon。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<form>
<div class="row">
<div class="col-xs-6">
<div class="input-group">
<input type="text" class="form-control" placeholder="Search&hellip;">
<span class="input-group-btn">
<button type="button" class="btn btn-default">Go</button>
</span>
</div>
</div>
<div class="col-xs-6">
<div class="input-group">
<span class="input-group-btn">
<button type="button" class="btn btn-default">Action</button>
<button type="button" class="btn btn-default">Options</button>
</span>
<input type="text" class="form-control" placeholder="Type something&hellip;">
</div>
</div>
</div>
</form>
<hr>
<form>
<div class="input-group">
<input type="text" class="form-control" placeholder="Search&hellip;">
<span class="input-group-btn">
<button type="button" class="btn btn-default">Go</button>
</span>
</div>
<br>
<div class="input-group">
<span class="input-group-btn">
<button type="button" class="btn btn-default">Action</button>
<button type="button" class="btn btn-default">Options</button>
</span>
<input type="text" class="form-control" placeholder="Type something&hellip;">
</div>
</form>
</div>
</body>
</html>