W3School TIY
编辑您的代码：
<html> <head> <script type="text/javascript"> function gettip(txt) { document.getElementById('tip').innerHTML='W3School 提供有关 WEB 标准和脚本技术的教程' } </script> </head> <body> <p>请双击 "w3c.80zhan.com"</p> <table> <tr> <th ondblclick="gettip()" valign="top">w3c.80zhan.com</th> <th id="tip"> </th> </tr> </table> </body> </html>
查看结果: