(joyoo) E:\djangos\joyoo>celery -A joyoo beat -l info --scheduler django_celery_beat.schedulers:DatabaseScheduler
celery beat v4.3.0 (rhubarb) is starting.
ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 25284)
删除 celerybeat.pid 文件后,然后重新运行启动命令。
you should delete the celerybeat.pid file,after start your celery beat.