二者都get_posts() 和wp_query() 应该能够通过传递tax_query 阵列到其中。

示例：

$query = array(
    \'post_type\' => \'portfolio\',
    \'post_status\' => \'publish\',
    \'posts_per_page\' => -1,
    \'tax_query\' => array(
        array(
            \'taxonomy\' => \'clients\',
            \'field\' => \'slug\',
            \'terms\' => array( \'acme\' )
        )
    ),
    \'orderby\' => \'menu_order\',
    \'order\' => \'ASC\'
);

$posts = get_posts( $query );