I can not create a table in my wordpress

What code are you using for the table?

i used this code

[ Moderator Note: Please post code or markup snippets between backticks or use the code button. ]

<table border="4" cellspacing="4" cellpadding="4">
<tbody>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

And what are you expecting to see?

if create a table in “new post” it appears. but i did not appear in the post page. for eg. click this url https://haimobiles.com/2012/09/table-2.html i already put a table in this post. but it did not appear. can u see this

The table is on that page.
Are you expecting to see a border or something visually apparent?

yes i can’t see the border. and also lines between the rows and columns

Consider adding borders to the tables, using CSS.

i tried that css codes but now also i can’t

Which CSS did you try, can you post it here?