<tr>必须在 <tbody> 内
表格行 ( Does a table row (
不行， No, the ) 是否必须在表格主体 ( ) 中，如果表格有表格主体，或者它可以存在于表体之外吗?
<tr>) have to be in a table body (<tbody>), if the table has a table body, or can it exist outside of the table body?<table>
<tr>
<td colspan='2'>...</td>
</tr>
<tbody>
<tr>
<td>...</td>
<td>...</td>
</tr>
</tbody>
<tr>
<td colspan='2'>...</td>
</tr>
<tbody>
<tr>
<td>...</td>
<td>...</td>
</tr>
</tbody>
</table>
可以在 ,
<tbody>、<tfoot> 或者它不必在其中任何一个中.
<tr> can be in the <thead>, <tbody>, <tfoot> or it doesn't have to be in any of them.
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