WordPress提供了一个名为wpmu_new_blog 并传递参数$blog_id （新博客的ID）和$user_id （用户，刚刚创建了一个新博客）（还有更多）到它。您可以挂接到此操作以创建新页面并编辑选项：

<?php
/**
 * Plugin Name: Default Site Structure
 * Description: Crates default pages and set them as front/blog index pages.
 * Network:     true
 * Plugin URL:  http://wordpress.stackexchange.com/a/219504/31323
 * License:     MIT
 * Version:     1.0.0-alpha
 */
namespace WPSE177819;

add_action( \'wp_loaded\', __NAMESPACE__ . \'\\init\' );

/**
 * @wp-hook wp_loaded
 */
function init() {

    add_action(
        \'wpmu_new_blog\',
        function( $blog_id, $user_id ) {

            switch_to_blog( $blog_id );

            $front_page_id = wp_insert_post( front_page_data( $user_id ) );
            $index_page_id = wp_insert_post( index_page_data( $user_id ) );

            if ( ! is_wp_error( $front_page_id ) && 0 !== $front_page_id ) {
                update_option( \'show_on_front\', \'page\' );
                update_option( \'page_on_front\', $front_page_id );
            }
            if ( ! is_wp_error( $index_page_id ) && 0 !== $index_page_id ) {
                update_option( \'page_for_posts\', $index_page_id );
            }


            update_option( \'date_format\', date_format() );
            update_option( \'time_format\', time_format() );

            restore_current_blog();
        },
        10,
        2
    );
}

/**
 * Returns the data of the blog index page
 *
 * @param int $post_author
 *
 * @return array
 */
function index_page_data( $post_author ) {

    return [
        \'post_title\'   => \'My blog index\',
        \'post_content\' => \'\',
        \'post_type\'    => \'page\',
        \'post_author\'  => $post_author,
        \'post_status\'  => \'publish\'
    ];
}

/**
 * Returns the data of the front page
 *
 * @param int $post_author
 *
 * @return array
 */
function front_page_data( $post_author ) {

    return [
        \'post_title\'   => \'Hello World\',
        \'post_content\' => \'Welcome to my new site!\',
        \'post_type\'    => \'page\',
        \'post_author\'  => $post_author,
        \'post_status\'  => \'publish\'
    ];
}

/**
 * Returns the custom date format
 *
 * @return string
 */
function date_format() {

    return \'d,m,Y\';
}

/**
 * Returns the custom time format
 *
 * @return string
 */
function time_format() {

    return \'H/i/s\';
}

将此插件用作mu-plugin 这将影响每一个新博客。此示例直接编辑所有选项键。您应该花一些时间来弄清楚WordPress是否提供API函数来设置这些选项。（类似于wp_set_front_page()…)