键盘事件绑定：

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<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>