W3School TIY
编辑您的代码：
<html> <head> <script type="text/javascript"> function bgChange(bg) { document.body.background=bg } </script> </head> <body> <b>请把鼠标移动到这些图片上，背景会发生变化：</b> <table width="300" height="100"> <tr> <td onmouseover="bgChange('/i/eg_bg_03.gif')" background="../i/eg_bg_03.gif" > </td> <td onmouseover="bgChange('/i/eg_bg_04.gif')" background="../i/eg_bg_04.gif" > </td> <td onmouseover="bgChange('/i/eg_bg_06.gif')" background="../i/eg_bg_06.gif" > </td> </tr> </table> </body> </html>
查看结果: