代码：
<body ng-app="app">
<ul ng-controller="myCtrl" style="list-style:none;">
<li ng-repeat="li in list track by $index" style="margin:5px;">
<div style="background:#f38f8f;width:150px;height:30px;line-height:30px;color:#fff;" ng-click="show($index)">我是标题</div>
<div style="background:#ccc;width:150px;height:50px;" ng-show="li.show">我是内容</div>
</li>
</ul>
<script type="text/javascript">
<body ng-app="app">
<ul ng-contro
