我想你可以试试过滤器list_terms_exclusions, 但我没有测试。

示例：

function fb_list_terms_exclusions($args) {

    if ( \'media-upload-popup\' != $where )
        return $where;

    if ( !current_user_can(\'manage_categories\') )
        $where = " AND t.slug  NOT IN (\'uncategorized\', \'category-2\')"; // slug of categories

    return $where;
}
add_filter( \'list_terms_exclusions\', \'fb_list_terms_exclusions\' );

更新此asnwer的评论：查找帖子类型的示例；首先是一个使用默认变量的小示例，然后是返回值的函数：

/**
 * Include my scripts
 *
 * $pagehook for check, if this the right page
 * $post_type for check, if this the right post type
 */
function fb_post_type_script($pagehook) {
    global $post_type;

    $pages = array( \'edit.php\', \'post.php\', \'post-new.php\' );
    if ( in_array( $pagehook, $pages ) && $post_type == \'my_post_type\' ) {
        wp_enqueue_script( \'my_script_example_key\', plugins_url( \'js/my_example_script.js\', __FILE__ ), array( \'jquery\', \'my_other_example_script_key\' ), \'1.0.0\' );
    }
}
add_action( \'admin_enqueue_scripts\', \'fb_post_type_script\' );

或者使用自定义函数查找帖子类型：

/**
 * Return post type
 *
 * @return string $post_type
 */
private function get_post_type() {

    if ( !function_exists(\'get_post_type_object\') )
        return NULL;

    if ( isset($_GET[\'post\']) )
        $post_id = (int) $_GET[\'post\'];
    elseif ( isset($_POST[\'post_ID\']) )
        $post_id = (int) $_POST[\'post_ID\'];
    else
        $post_id = 0;

    $post = NULL;
    $post_type_object = NULL;
    $post_type = NULL;
    if ( $post_id ) {
        $post = get_post($post_id);
        if ( $post ) {
        $post_type_object = get_post_type_object($post->post_type);
            if ( $post_type_object ) {
                $post_type = $post->post_type;
                $current_screen->post_type = $post->post_type;
                $current_screen->id = $current_screen->post_type;
            }
        }
    } elseif ( isset($_POST[\'post_type\']) ) {
        $post_type_object = get_post_type_object($_POST[\'post_type\']);
        if ( $post_type_object ) {
            $post_type = $post_type_object->name;
            $current_screen->post_type = $post_type;
            $current_screen->id = $current_screen->post_type;
        }
    } elseif ( isset($_SERVER[\'QUERY_STRING\']) ) {
        $post_type = esc_attr( $_SERVER[\'QUERY_STRING\'] );
        $post_type = str_replace( \'post_type=\', \'\', $post_type );
    }

    return $post_type;
}

public function example() {
    $post_type = $this->get_post_type();  

    // FB_POST_TYPE_1 is defined with my post type
    if ( FB_POST_TYPE_1 == $post_type ) {
        // tue etwas, wenn wahr
    }
}