使用at
=======查看当前任务=========
at -l 或者atq
=======查看任务执行什么=====
at -c
=======配置任务=========
at 02:00 #离现在最近的02：00的时候
run supervisorctl stop AITalk
run supervisorctl restart AITalk
=========关闭任务==========
at -d 9 (9是作业编号)