我设置了一个定时任务来跟踪 cw 网站上的价格变化，代码是这样的：schedule.scheduleJob(“* * */5 * * *”, () => {…});。我预期这个任务每 5 小时运行一次。然而，很快我发现 record 函数频繁运行，大概每一秒一次。后来查阅资料后，才知道 ～～～ The cron expression * * */5 * * * breaks down as follows: First *: every second Second *: every minute */5: every 5 hours ～～～
For running the schedule every 5 minutes, the correct cron expression should be 0 */5 * * * *, which translates to:
At second 0 Every 5th minute Every hour