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玩转Bootstrap（基础）

                
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runering

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap的HTML标准模板</title>
        
        <link href="css/bootstrap.min.css" rel="stylesheet">
        
        <link href="css/your-style.css" rel="stylesheet">
        
        
    </head>
    <body>
        <h1>Hello, world!</h1>

        
        <script src="https://www.imooc.com/static/lib/jquery/1.9.1/jquery.js"></script>
        
        <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
    </body>
</html>

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0 采集收起来源：基本的HTML模板
2018-04-03
runering

<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Theme Template for Bootstrap</title>
    
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css">
</head>
<body role="document">
    <div class="container theme-showcase" role="main">
      
      <div class="jumbotron">
        <h1>Hello, world!</h1>
        <p>This is a template for a simple marketing or informational website. It includes a large callout called a jumbotron and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
        <p><a href="#" class="btn btn-primary btn-lg" role="button">Learn more »</a></p>
      </div>

      <div class="page-header">
        <h1>按钮</h1>
      </div>
      <p>
        <button type="button" class="btn btn-lg btn-default">Default</button>
        <button type="button" class="btn btn-lg btn-primary">Primary</button>
        <button type="button" class="btn btn-lg btn-success">Success</button>
        <button type="button" class="btn btn-lg btn-info">Info</button>
        <button type="button" class="btn btn-lg btn-warning">Warning</button>
        <button type="button" class="btn btn-lg btn-danger">Danger</button>
        <button type="button" class="btn btn-lg btn-link">Link</button>
      </p>
      <p>
        <button type="button" class="btn btn-default">Default</button>
        <button type="button" class="btn btn-primary">Primary</button>
        <button type="button" class="btn btn-success">Success</button>
        <button type="button" class="btn btn-info">Info</button>
        <button type="button" class="btn btn-warning">Warning</button>
        <button type="button" class="btn btn-danger">Danger</button>
        <button type="button" class="btn btn-link">Link</button>
      </p>
      <p>
        <button type="button" class="btn btn-sm btn-default">Default</button>
        <button type="button" class="btn btn-sm btn-primary">Primary</button>
        <button type="button" class="btn btn-sm btn-success">Success</button>
        <button type="button" class="btn btn-sm btn-info">Info</button>
        <button type="button" class="btn btn-sm btn-warning">Warning</button>
        <button type="button" class="btn btn-sm btn-danger">Danger</button>
        <button type="button" class="btn btn-sm btn-link">Link</button>
      </p>
      <p>
        <button type="button" class="btn btn-xs btn-default">Default</button>
        <button type="button" class="btn btn-xs btn-primary">Primary</button>
        <button type="button" class="btn btn-xs btn-success">Success</button>
        <button type="button" class="btn btn-xs btn-info">Info</button>
        <button type="button" class="btn btn-xs btn-warning">Warning</button>
        <button type="button" class="btn btn-xs btn-danger">Danger</button>
        <button type="button" class="btn btn-xs btn-link">Link</button>
      </p>
      <div class="page-header">
        <h1>表格</h1>
      </div>
      <div class="row">
        <div class="col-md-6">
          <table class="table">
            <thead>
              <tr>
                <th>#</th>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Username</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td>1</td>
                <td>Mark</td>
                <td>Otto</td>
                <td>@mdo</td>
              </tr>
              <tr>
                <td>2</td>
                <td>Jacob</td>
                <td>Thornton</td>
                <td>@fat</td>
              </tr>
              <tr>
                <td>3</td>
                <td>Larry</td>
                <td>the Bird</td>
                <td>@twitter</td>
              </tr>
            </tbody>
          </table>
        </div>
        <div class="col-md-6">
          <table class="table table-striped">
            <thead>
              <tr>
                <th>#</th>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Username</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td>1</td>
                <td>Mark</td>
                <td>Otto</td>
                <td>@mdo</td>
              </tr>
              <tr>
                <td>2</td>
                <td>Jacob</td>
                <td>Thornton</td>
                <td>@fat</td>
              </tr>
              <tr>
                <td>3</td>
                <td>Larry</td>
                <td>the Bird</td>
                <td>@twitter</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="row">
        <div class="col-md-6">
          <table class="table table-bordered">
            <thead>
              <tr>
                <th>#</th>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Username</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td rowspan="2">1</td>
                <td>Mark</td>
                <td>Otto</td>
                <td>@mdo</td>
              </tr>
              <tr>
                <td>Mark</td>
                <td>Otto</td>
                <td>@TwBootstrap</td>
              </tr>
              <tr>
                <td>2</td>
                <td>Jacob</td>
                <td>Thornton</td>
                <td>@fat</td>
              </tr>
              <tr>
                <td>3</td>
                <td colspan="2">Larry the Bird</td>
                <td>@twitter</td>
              </tr>
            </tbody>
          </table>
        </div>
        <div class="col-md-6">
          <table class="table table-condensed">
            <thead>
              <tr>
                <th>#</th>
                <th>First Name</th>
                <th>Last Name</th>
                <th>Username</th>
              </tr>
            </thead>
            <tbody>
              <tr>
                <td>1</td>
                <td>Mark</td>
                <td>Otto</td>
                <td>@mdo</td>
              </tr>
              <tr>
                <td>2</td>
                <td>Jacob</td>
                <td>Thornton</td>
                <td>@fat</td>
              </tr>
              <tr>
                <td>3</td>
                <td colspan="2">Larry the Bird</td>
                <td>@twitter</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="page-header">
        <h1>Thumbnails</h1>
      </div>
      <img data-src="holder.js/200x200" class="img-thumbnail" alt="200x200" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMDAiIGhlaWdodD0iMjAwIj48cmVjdCB3aWR0aD0iMjAwIiBoZWlnaHQ9IjIwMCIgZmlsbD0iI2VlZSIvPjx0ZXh0IHRleHQtYW5jaG9yPSJtaWRkbGUiIHg9IjEwMCIgeT0iMTAwIiBzdHlsZT0iZmlsbDojYWFhO2ZvbnQtd2VpZ2h0OmJvbGQ7Zm9udC1zaXplOjEzcHg7Zm9udC1mYW1pbHk6QXJpYWwsSGVsdmV0aWNhLHNhbnMtc2VyaWY7ZG9taW5hbnQtYmFzZWxpbmU6Y2VudHJhbCI+MjAweDIwMDwvdGV4dD48L3N2Zz4=" >
      <div class="page-header">
        <h1>Labels</h1>
      </div>
      <h1>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h1>
      <h2>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h2>
      <h3>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h3>
      <h4>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h4>
      <h5>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h5>
      <h6>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </h6>
      <p>
        <span class="label label-default">Default</span>
        <span class="label label-primary">Primary</span>
        <span class="label label-success">Success</span>
        <span class="label label-info">Info</span>
        <span class="label label-warning">Warning</span>
        <span class="label label-danger">Danger</span>
      </p>
      <div class="page-header">
        <h1>Badges</h1>
      </div>
      <p>
        <a href="#">Inbox <span class="badge">42</span></a>
      </p>
      <ul class="nav nav-pills" role="tablist">
        <li role="presentation" class="active"><a href="#">Home <span class="badge">42</span></a></li>
        <li role="presentation"><a href="#">Profile</a></li>
        <li role="presentation"><a href="#">Messages <span class="badge">3</span></a></li>
      </ul>
      <div class="page-header">
        <h1>Navs</h1>
      </div>
      <ul class="nav nav-tabs" role="tablist">
        <li role="presentation" class="active"><a href="#">Home</a></li>
        <li role="presentation"><a href="#">Profile</a></li>
        <li role="presentation"><a href="#">Messages</a></li>
      </ul>
      <ul class="nav nav-pills" role="tablist">
        <li role="presentation" class="active"><a href="#">Home</a></li>
        <li role="presentation"><a href="#">Profile</a></li>
        <li role="presentation"><a href="#">Messages</a></li>
      </ul>
      <div class="page-header">
        <h1>Navbars</h1>
      </div>
      <div class="navbar navbar-default">
        <div class="container">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
              <span class="sr-only">Toggle navigation</span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">Project name</a>
          </div>
          <div class="navbar-collapse collapse">
            <ul class="nav navbar-nav">
              <li class="active"><a href="#">Home</a></li>
              <li><a href="#about">About</a></li>
              <li><a href="#contact">Contact</a></li>
              <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                  <li><a href="#">Action</a></li>
                  <li><a href="#">Another action</a></li>
                  <li><a href="#">Something else here</a></li>
                  <li class="divider"></li>
                  <li class="dropdown-header">Nav header</li>
                  <li><a href="#">Separated link</a></li>
                  <li><a href="#">One more separated link</a></li>
                </ul>
              </li>
            </ul>
          </div>
        </div>
      </div>
      <div class="navbar navbar-inverse">
        <div class="container">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".navbar-collapse">
              <span class="sr-only">Toggle navigation</span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
              <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">Project name</a>
          </div>
          <div class="navbar-collapse collapse">
            <ul class="nav navbar-nav">
              <li class="active"><a href="#">Home</a></li>
              <li><a href="#about">About</a></li>
              <li><a href="#contact">Contact</a></li>
              <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                  <li><a href="#">Action</a></li>
                  <li><a href="#">Another action</a></li>
                  <li><a href="#">Something else here</a></li>
                  <li class="divider"></li>
                  <li class="dropdown-header">Nav header</li>
                  <li><a href="#">Separated link</a></li>
                  <li><a href="#">One more separated link</a></li>
                </ul>
              </li>
            </ul>
          </div>
        </div>
      </div>
      <div class="page-header">
        <h1>Alerts</h1>
      </div>
      <div class="alert alert-success" role="alert">
        <strong>Well done!</strong> You successfully read this important alert message.
      </div>
      <div class="alert alert-info" role="alert">
        <strong>Heads up!</strong> This alert needs your attention, but it's not super important.
      </div>
      <div class="alert alert-warning" role="alert">
        <strong>Warning!</strong> Best check yo self, you're not looking too good.
      </div>
      <div class="alert alert-danger" role="alert">
        <strong>Oh snap!</strong> Change a few things up and try submitting again.
      </div>
      <div class="page-header">
        <h1>Progress bars</h1>
      </div>
      <div class="progress">
        <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">60% Complete</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">40% Complete (success)</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="20" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">20% Complete</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-warning" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">60% Complete (warning)</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-danger" role="progressbar" aria-valuenow="80" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">80% Complete (danger)</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-striped" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" ><span class="sr-only">60% Complete</span></div>
      </div>
      <div class="progress">
        <div class="progress-bar progress-bar-success" ><span class="sr-only">35% Complete (success)</span></div>
        <div class="progress-bar progress-bar-warning" ><span class="sr-only">20% Complete (warning)</span></div>
        <div class="progress-bar progress-bar-danger" ><span class="sr-only">10% Complete (danger)</span></div>
      </div>
      <div class="page-header">
        <h1>List groups</h1>
      </div>
      <div class="row">
        <div class="col-sm-4">
          <ul class="list-group">
            <li class="list-group-item">Cras justo odio</li>
            <li class="list-group-item">Dapibus ac facilisis in</li>
            <li class="list-group-item">Morbi leo risus</li>
            <li class="list-group-item">Porta ac consectetur ac</li>
            <li class="list-group-item">Vestibulum at eros</li>
          </ul>
        </div>
        <div class="col-sm-4">
          <div class="list-group">
            <a href="#" class="list-group-item active">
              Cras justo odio
            </a>
            <a href="#" class="list-group-item">Dapibus ac facilisis in</a>
            <a href="#" class="list-group-item">Morbi leo risus</a>
            <a href="#" class="list-group-item">Porta ac consectetur ac</a>
            <a href="#" class="list-group-item">Vestibulum at eros</a>
          </div>
        </div>
        <div class="col-sm-4">
          <div class="list-group">
            <a href="#" class="list-group-item active">
              <h4 class="list-group-item-heading">List group item heading</h4>
              <p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
            </a>
            <a href="#" class="list-group-item">
              <h4 class="list-group-item-heading">List group item heading</h4>
              <p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
            </a>
            <a href="#" class="list-group-item">
              <h4 class="list-group-item-heading">List group item heading</h4>
              <p class="list-group-item-text">Donec id elit non mi porta gravida at eget metus. Maecenas sed diam eget risus varius blandit.</p>
            </a>
          </div>
        </div>
      </div>
      <div class="page-header">
        <h1>Panels</h1>
      </div>
      <div class="row">
        <div class="col-sm-4">
          <div class="panel panel-default">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
          <div class="panel panel-primary">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
        </div>
        <div class="col-sm-4">
          <div class="panel panel-success">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
          <div class="panel panel-info">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
        </div>
        <div class="col-sm-4">
          <div class="panel panel-warning">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
          <div class="panel panel-danger">
            <div class="panel-heading">
              <h3 class="panel-title">Panel title</h3>
            </div>
            <div class="panel-body">
              Panel content
            </div>
          </div>
        </div>
      </div>
    </div> 
    
    
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
</body>
</html>

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0 采集收起来源：Bootstrap到底是什么？
2018-04-03
刘家小妹子

bootstrap网格系统就是通过定义一个容器的大小，平分12份，再调整内外边距，最后结合媒体查询制作而成。

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0 采集收起来源：实现原理
2018-04-03
刘家小妹子

设置图片大小：
由于样式没有对图片做大小上的样式限制，所以在实际使用的时候，需要通过其他的方式来处理图片大小。比如说控制图片容器大小。（注意不可以通过css样式直接修改img图片的大小，这样操作就不响应了）
注意：
对于圆角图片和圆形图片效果，因为是使用了CSS3的圆角样式来实现的，所以注意对于IE8以及其以下版本不支持，是没有圆角效果的。

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0 采集收起来源：图像
2018-04-03
刘家小妹子

在Bootstrap框架中对于图像的样式风格提供以下几种风格：
1、img-responsive：响应式图片，主要针对于响应式设计
2、img-rounded：圆角图片
3、img-circle：圆形图片
4、img-thumbnail：缩略图片
使用方法非常简单，只需要在<img>标签上添加对应的类名

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0 采集收起来源：图像
2018-04-03
刘家小妹子

在Bootstrap框架中，要禁用按钮有两种实现方式：方法1：在标签中添加disabled属性方法2：在元素标签中添加类名“disabled” 两者的主要区别是： “.disabled”样式不会禁止按钮的默认行为，比如说提交和重置行为等。如果想要让这样的禁用按钮也能禁止按钮的默认行为，则需要通过JavaScript这样的语言来处理。对于<a>标签也存在类似问题，如果通过类名“.disable”来禁用按钮，其链接行为是无法禁止。而在元素标签中添加“disabled”属性的方法是可以禁止元素的默认行为的。

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0 采集收起来源：按钮状态——禁用状态
2018-04-03
刘家小妹子

Bootstrap框架中提供了一个类名“btn-block”。按钮使用这个类名就可以让按钮充满整个容器，并且这个按钮不会有任何的padding和margin值。在实际当中，常把这种按钮称为块状按钮

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0 采集收起来源：块状按钮
2018-04-03
刘家小妹子

在Bootstrap框架中控制按钮的大小都是通过修改按钮的padding、line-height、font-size和border-radius几个属性。

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0 采集收起来源：按钮大小
2018-04-03
刘家小妹子

表单提示信息平常在制作表单验证时，要提供不同的提示信息。在Bootstrap框架中也提供了这样的效果。使用了一个"help-block"样式，将提示信息以块状显示，并且显示在控件底部。如以下代码和效果图
<div class="form-group has-error has-feedback">
<label class="control-label" for="inputError1">错误状态</label>
<input type="text" class="form-control" id="inputError1" placeholder="错误状态">
<span class="help-block">您输入的信息是错误的</span>
<span class="glyphicon glyphicon-remove form-control-feedback"></span>
</div>

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0 采集收起来源：表单提示信息
2018-04-03
刘家小妹子

表单验证不同状态时，能提供不同的icon，如成功是一个对号（√），错误是一个叉号（×）等，若想让表单在对应状态下显示出对应icon，只需在对应的状态下添加类名"has-feedback"，此类名要与状态样式类名在一起。bootstrap中的小图标都是使用@font-face制作的，而且必须在表单中添加一个span元素,如下代码：
<div class="form-group has-error has-feedback">
<label class="control-label">email地址</label>
<input type="email" class="form-control" >
</div>

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0 采集收起来源：表单控件状态(验证状态)
2018-04-03
慕姐3432061

网格系统工作原理如下：
1. 数据行(.row)必须包含在容器(.container)中，以便为其赋予合适的对齐方式和内距(padding);
2. 在行(.row)中可以添加列(.column),但列数之和不能超过平分的总列数，比如12;
3. 具体内容应当放置在列容器(column)之内，而且只有列(column)才可以作为行容器(.row)的直接子元素；
4. 通过设置内距(padding)从而创建列与列之间的间距，然后通过为第一列和最后一列设置负值的外距(margin)来抵消内距(padding)的影响。
示例如下：
<div class="container">
<div class="row">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-8">.col-md-8</div>
</div>
</div>

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0 采集收起来源：工作原理
2018-04-03
saikikky

JS文件放在body的下面，css文件放在head中

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0 采集收起来源：如何开始使用Bootstrap
2018-04-03
慕姐3432061

表单验证不同状态时，能提供不同的icon，如成功是一个对号（√），错误是一个叉号（×）等，若想让表单在对应状态下显示出对应icon，只需在对应的状态下添加类名"has-feedback"，此类名要与状态样式类名在一起。bootstrap中的小图标都是使用@font-face制作的，而且必须在表单中添加一个span元素。如下：
<div class="form-group has-success has-feedback">
<label class="control-label" for="inputSuccess1">成功状态</label>
<input type="text" class="form-control" id="inputSuccess1" placeholder="成功状态" >
<span class="glyphicon glyphicon-ok form-control-feedback"></span>
</div>

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0 采集收起来源：表单控件状态(验证状态)
2018-04-03
碎碎念o_o4253196

以前学radio的时候经常会弄混"name"、"value"和选择框文本三个东西。这里说明一下：1.radio是按组来区分选择框的，“name”其实是组名，只有选择框的“name”相同才表明同组，这样才可以实现单选，试想一下，如果不同组那你选你的我选我的就都可以勾选了也就不是单项选择框了；2.“value”代表的是这个选择框的值，是提交服务器用的，因为服务器要识别选择框的值，所以“value”的值必须不同这样才能区分不同选择框；3.选择框文本直接在<input>标签后写上就行。总结一句就是"name"必须相同，"value"必须不同，文本在标签之后。

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0 采集收起来源：表单控件(复选框和单选按钮水平排列)
2018-04-02
碎碎念o_o4253196

1、不管是checkbox还是radio都使用label包起来了
2、checkbox连同label标签放置在一个名为“.checkbox”的容器内
3、radio连同label标签放置在一个名为“.radio”的容器内
在Bootstrap框架中，主要借助“.checkbox”和“.radio”样式，来处理复选框、单选按钮与标签的对齐方式

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0 采集收起来源：表单控件(复选框checkbox和单选择按钮radio)
2018-04-02

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