W3School TIY Editor
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改变方向
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<!DOCTYPE html> <html> <head> <script> function bgChange(bg) { document.body.style.background = bg; } </script> </head> <body> <h1>改变背景颜色</h1> <p>请把鼠标移动到方块上。</p> <table style="width:300px;height:100px"> <tr> <td onmouseover="bgChange(this.style.backgroundColor)" onmouseout="bgChange('transparent')" style="background-color:Khaki"> </td> <td onmouseover="bgChange(this.style.backgroundColor)" onmouseout="bgChange('transparent')" style="background-color:PaleGreen"> </td> <td onmouseover="bgChange(this.style.backgroundColor)" onmouseout="bgChange('transparent')" style="background-color:Silver"> </td> </tr> </table> </body> </html>