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提交运行
代码编辑器：
<!DOCTYPE html> <meta charset="utf-8"> <script> function aboveFrames(){ document.getElementById('myTable').frame="above"; } function belowFrames(){ document.getElementById('myTable').frame="below"; } </script> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <table id="myTable"> <tr> <td>100</td> <td>200</td> </tr> <tr> <td>300</td> <td>400</td> </tr> </table> <br> <input type="button" onclick="aboveFrames()" value="显示上frames"> <input type="button" onclick="belowFrames()" value="显示下frames"> <footer>简单教程，简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果：