dj定时任务

参考：http://www.mknight.cn/post/13/
https://blog.csdn.net/sicofield/article/details/50937338
一、INSTALLED_APPS = (
....
'djcelery',

)
二、
setting.py添加：
CELERYBEAT_SCHEDULE = {
    'add-every-3-seconds': {
        'task': 'test.tasks.test_celery',
        # 'schedule': crontab(minute=u'40', hour=u'17',),
        'schedule': timedelta(seconds=3),
        'args': (16, 17)
    },
    'timing': {
        'task': 'appdemo.tasks.test_multiply',
        'schedule': crontab(minute=u'28', hour=u'11',),
        # 'schedule': timedelta(seconds=3),
        'args': (2, 3)
    },
}
执行python3  manage.py celery -A test_django  worker -B就能看到每三秒执行一次test_celery