WordPress Kategoriye Ait Yazıları Listelemek

<?php if (have_posts()) : ?> 
<?php $usluer = new WP_Query("cat=1&showposts=10"); while($usluer->have_posts()) : $usluer->the_post();?>  
  
KODLAR  
  
<?php endwhile; ?> 
<?php endif; ?>