引用:
Understanding WP-Cron Scheduling:https://developer.wordpress.org/plugins/cron/understanding-wp-cron-scheduling/
Scheduling WP Cron Events:https://developer.wordpress.org/plugins/cron/scheduling-wp-cron-events/
使用 WP-Cron 在 WordPress 中安排任务,定时执行:https://m.wpjam.com/article/using-wp-cron-schedule-jobs-in-wordpress/