我有一个名为“portcat”的自定义帖子类型，我想从页面中排除一个portcat类别（“weather”-ID=\'5”）。我试过了\'category__not_in\' => array( 5 ) 但显然，这不适用于自定义帖子类型。我可以在下面的代码中添加什么来排除它？

<?php
$temp = $wp_query;
$wp_query = null;
$wp_query = new WP_Query();
             $args = array(
             \'post_type\' => \'port\',
             \'paged\' => $paged,
             \'posts_per_page\' => get_theme_option("portfolio_work_count"),           
             );

if (isset($_GET[\'slug\'])) {
 $args[\'tax_query\']=array(
                     array(  
                      \'taxonomy\' => \'portcat\',
                      \'field\' => \'slug\',
                      \'terms\' => $_GET[\'slug\'] 
                    ) 
                );
        }