语法

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<html>

<body>

<h4>带有普通的边框：</h4>  
<table border="1">
<tr>
  <td>First</td>
  <td>Row</td>
</tr>   
<tr>
  <td>Second</td>
  <td>Row</td>
</tr>
</table>

<h4>带有粗的边框：</h4>  
<table border="8">
<tr>
  <td>First</td>
  <td>Row</td>
</tr>   
<tr>
  <td>Second</td>
  <td>Row</td>
</tr>
</table>

<h4>带有很粗的边框：</h4>  
<table border="15">
<tr>
  <td>First</td>
  <td>Row</td>
</tr>   
<tr>
  <td>Second</td>
  <td>Row</td>
</tr>
</table>

</body>
</html>

效果

带有普通的边框：

First Row
Second Row

带有粗的边框：

First Row
Second Row

带有很粗的边框：

First Row
Second Row