crontab格式问题

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1，linux crontab格式

 ┌───────────── minute (0 - 59) │ ┌───────────── hour (0 - 23) │ │ ┌───────────── day of month (1 - 31) │ │ │ ┌───────────── month (1 - 12) │ │ │ │ ┌───────────── day of week (0 - 6) (Sunday to Saturday; │ │ │ │ │                                       7 is also Sunday) │ │ │ │ │ │ │ │ │ │  * *  *  * *  command to execute

5位，其中day of week使用“0 - 6 (0=Sunday)”，或者"SUN, MON, TUE, WED, THU, FRI and SAT"

2，quartz crontab格式

Seconds
Minutes
Hours
Day-of-Month
Month
Day-of-Week
Year (optional field)

7位，增加秒和年的约定。day of week 使用“1 - 7 (1 = Sunday)”，或者"SUN, MON, TUE, WED, THU, FRI and SAT"

https://en.wikipedia.org/wiki/Cron

http://www.quartz-scheduler.org/documentation/quartz-2.x/tutorials/tutorial-lesson-06.html

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