效果：
代码如下：
1 <!doctype html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>HTML表格</title> 6 </head> 7 <body> 8 <table border="1"> 9 <tr> 10 <td>1</td> 11 <td colspan="2">2</td><!--横向--> 12 <!-- <td>3</td> --> 13 </tr> 14 <tr> 15 <td rowspan="2">4</td><!--纵向--> 16 <td>5</td> 17 <td>6</td> 18 </tr> 19 <tr> 20 <!-- <td>7</td> --> 21 <td>8</td> 22 <td>9</td> 23 </tr> 24 </table> 25 </body> 26 </html>