error log（错误日志）
代码语言：javascript复制(joyoo) E:djangosjoyoo>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)solution（解决办法）
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.
