你可以这样使用你的博客ID列表。。。

$posts = array();
foreach ( $your_list_of_blog_ids as $blog_id ) {
    switch_to_blog( $blog_id );
    $query = new WP_Query(
        array(
            \'post_type\' => \'any\',
            \'posts_per_page\' => 10,
        )
    );
    while ( $query->have_posts() ) {
        $query->next_post();
        $posts[] = $query->post;
    }
    restore_current_blog();
}