I am creating a website. There is a column for latest updates. 
This is the code that i have now. I don't really good in php coding. Would like to get guidance from someone.

```
<?php
 $postslist = get_posts('numberposts=1&order=DESC&orderby=date');
 foreach ($postslist as $post) :
    setup_postdata($post);
 ?>
<?php the_excerpt(); ?>
<p class="date"><?php echo get_the_date(); ?></p>
<span class="button">
<a href="<?php the_permalink(); ?>">Read More</a>

```

But, i would like to exclude some posts from certain categories. Is there any solution to make it happen? Thank you!