您可以使用以下代码将模板和样式表分配给子网站/博客：

// create the blog
$blog_ID = wpmu_create_blog( $domain, $path, $title, 1 );

// assign template and stylesheet to the blog
update_blog_option( $blog_ID, \'template\', \'your_template_name\' );
update_blog_option( $blog_ID, \'stylesheet\', \'your_stylesheet_name\' );

wpmu_create_blog

function mysite_wpmu_new_blog($blog_id)
{
    switch_to_blog($blog_id);
    switch_theme(\'my-theme\', \'my-theme\');
    restore_current_blog();
}

add_action(\'wpmu_new_blog\', \'mysite_wpmu_new_blog\');

This works for me!