我尝试使用id、slug、name，并将tax\\u查询作为一个数组，但它仍然会输出该帖子类型的所有帖子。

下面是我的自定义分类法“特定于事件”：

function theme_event_category(){
    $labels = array(
    \'name\' => \'Event Specifics\',
    \'singular_name\'=> \'Specific\',
    \'search_items\' => \'Search Event Specifics\',
    \'all_items\' => \'All Event Specifics\',
    \'parent_item\' => \'Parent Event Specific\',
    \'parent_item_colon\' => \'Parent Colon:\',
    \'edit_item\' => \'Edit Specific Item\',
    \'update_item\' => \'Update Specific Item\',
    \'add_new_item\' => \'Add New Event Specific\',
    \'new_item_name\' => \'New Specific Item\',
    \'menu_name\' => \'Event Specific\'
);

$args = array(
    \'hierarchical\' => false,
    \'labels\' => $labels,
    \'show_ui\' => true,
    \'show_admin_column\' => true,
    \'query_var\' => true,
    \'rewrite\' => array(\'slug\' => \'event\')
);

register_taxonomy(\'event_specific\', \'event\', $args  );

}
add_action(\'init\', \'theme_event_category\');

$quertest = array(
        \'post_type\'             =>  \'event\',
        \'posts_per_page\'        =>  1,
        \'tax_query\'             =>  array(array(\'event_specific\', \'slug\', \'main-event\')),
);

 $upcoming_events = new WP_Query( $quertest );

<?php while ( $upcoming_events->have_posts() ) : $upcoming_events->the_post();
    echo \'Title: \';
    the_title();
?>