?是星期,往前是:月日时分(秒)
cronstrue.toString("* * * * *");
> "Every minute"
cronstrue.toString("0 23 ? * MON-FRI");
> "At 11:00 PM, Monday through Friday"
cronstrue.toString("0 23 * * *", { verbose: true });
> "At 11:00 PM, every day"
cronstrue.toString("23 12 * * SUN#2");
> "At 12:23 PM, on the second Sunday of the month"
cronstrue.toString("23 14 * * SUN#2", { use24HourTimeFormat: true });
> "At 14:23, on the second Sunday of the month"
cronstrue.toString("* * * ? * 2-6/2", { dayOfWeekStartIndexZero: false });
> "Every second, every 2 days of the week, Monday through Friday"
cronstrue.toString("* * * 6-8 *", { monthStartIndexZero: true });
> "Every minute, July through September"