引入js文件

<script src="codemirror/lib/codemirror.js"></script>
<script src="codemirror/addon/edit/closetag.js"></script>
<script src="codemirror/mode/xml/xml.js"></script>
<script src="codemirror/mode/javascript/javascript.js"></script>
<script src="codemirror/mode/css/css.js"></script>
<script src="codemirror/mode/htmlmixed/htmlmixed.js"></script>
<script src="code-blast.js"></script>