简洁语法 include 使div会多嵌套一层
``` html
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>basic-demo</title>
<script src="http://aui.github.io/artTemplate/dist/template.js"></script>
</head>

<body>
<div id="content"></div>
<script id="msg-item" type="text/html">
    {{each list}}
        {{$value}}
    {{/each}}
</script>

<script id="msg-list" type="text/html">
    <div id="msg-cnt" class="msg-content">
        {{include('msg-item')}}
   </div>
</script>

<script>
var data = ['文艺', '博客', '摄影', '电影', '民谣', '旅行', '吉他'];
var html = template('msg-list', {list:data});
document.getElementById('content').innerHTML = html;
</script>
</body>
</html>
```

运行后，在 chrome 里 查看代码 ，会发现 

``` html
<div id="msg-cnt" class="msg-content">
```

变为

``` html
<div id="msg-cnt" class="msg-content">
<div id="msg-cnt" class="msg-content">
```

![image](https://cloud.githubusercontent.com/assets/1756397/8771166/47a37b84-2ef0-11e5-9b43-3dc892095600.png)
