您是否试用过Update\\u post\\u meta
<?php update_post_meta( $post_id, $meta_key, $meta_value, $prev_value ); ?>
例如
update_post_meta($variation_post_id, \'_price\', $variation[\'price\']);
update_post_meta($variation_post_id, \'_regular_price\',$variation[\'price\']);
