table表格中的 colspan rowspan cellpadding cellspacing

横跨两列的单元格：

colspan  属性规定单元格可横跨的列数 colspan="2"

<table border="1">
<tr>
  <th>姓名</th>
  <th colspan="2">电话</th>
</tr>
<tr>
  <td>Bill Gates</td>
  <td>55577854</td>
  <td>5557855</td>
</tr>
</table>

横跨两行的单元格：

rowspan 属性规定单元格可横跨的行数 rowspan="2"

<table border="1">
<tr>
  <th>姓名</th>
  <td>Bill Gates</td>
</tr>
<tr>
  <th rowspan="2">电话</th>
  <td>55577854</td>
</tr>
<tr>
  <td>55577855</td>
</tr>
</table>

 单元格间距  cellspacing 

<table border="1" cellspacing="10">
<tr>
  <td>First</td>
  <td>Row</td>
</tr>
<tr>
  <td>Second</td>
  <td>Row</td>
</tr>
</table>

 单元格边距  cellpadding

<table border="1"  cellpadding="10">
<tr>
  <td>First</td>
  <td>Row</td>
</tr>
<tr>
  <td>Second</td>
  <td>Row</td>
</tr>
</table>