键盘事件绑定：
<html>
<head>
<base href="<%=basePath%>">
<title>Insert title here</title>
<script type="text/javascript" src="<%=basePath %>ckk/ckeditor/ckeditor.js"></script>
</head>
<body>
<form action="" method="post">
<textarea class="ckeditor" name="context" id="context"></textarea>
<input type="button" value="提交" onclick="test()"/>
</form>
<div id="info"></div>
${param.context }
<script type="text/javascript">
//键盘事件绑定
var editor = CKEDITOR.replace('context');
CKEDITOR.instances["context"].on("key", function(evt){
document.getElementById("info").innerHTML =editor.getData();
});
</script>
</body>
</html>
