案例：ionic案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html ng-app="ionicApp">
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    <head>
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        <meta charset="utf-8">
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        <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
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        <title>W3xue教程(w3xue.com)</title>
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        <link href="https://cdn.bootcss.com/ionic/1.3.2/css/ionic.css" rel="stylesheet">
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        <script src="https://cdn.bootcss.com/ionic/1.3.2/js/ionic.bundle.min.js"></script>
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    </head>
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    <body>
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    <div class="bar bar-header">
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      <div class="h1 title">切换</div>
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    </div>
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​
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    <div class="content has-header">
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​
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      <ul class="list">
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        <li class="item item-toggle">
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           HTML5
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           <label class="toggle toggle-positive">
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             <input type="checkbox" checked="">
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             <div class="track">
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               <div class="handle"></div>
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             </div>
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           </label>
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        </li>
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        <li class="item item-toggle">
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           CSS3
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           <label class="toggle toggle-calm">
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             <input type="checkbox" checked="">
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             <div class="track">
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               <div class="handle"></div>
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             </div>
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           </label>
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        </li>
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        <li class="item item-toggle">
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           Flashplayer
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           <label class="toggle toggle-balanced">
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             <input type="checkbox">
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             <div class="track">
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               <div class="handle"></div>
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             </div>
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           </label>
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        </li>
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        <li class="item item-toggle">
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           Java Applets
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           <label class="toggle toggle-energized">
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             <input type="checkbox">