<div class="htmlarea"> <textarea id="runcode30497"> <script>var a="";for(var i=65;i<91;i++)a+=String.fromCharCode(i);alert(a);</script> </textarea><br><input onclick="runEx('runcode30497')" type="button" value="运行代码"> <input onclick="doCopy('runcode30497')" type="button" value="复制代码"> <input onclick="doSave(runcode30497)" type="button" value="保存代码">[Ctrl+A 全选 注:<a href="http://www.jb51.net/article/23421.htm" title="查看具体详情" target="_blank">如需引入外部Js需刷新才能执行</a>]</div>
