xxxxxxxxxx<html><head> <meta charset="utf-8"> <title>W3Cschool教程(w3cschool.cn)</title> </head><body><p><b>注意:</b> HTML5 不支持 frame 属性。可以使用 CSS 代替。.</p><p>在所有四个边上显示外侧边框:</p><table frame="box"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr></table><p>Table with frame="above":</p><table frame="above"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr></table><p>显示上部的外侧边框:</p><table frame="below"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr></table><p>显示上部和下部的外侧边框:</p><table frame="hsides"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr></table><p>显示左边和右边的外侧边框:</p><table frame="vsides"> <tr> <th>Month</th> <th>Savings</th> </tr> <tr> <td>January</td> <td>$100</td> </tr></table></body></html>