# Every fifteen minutes (perhaps at :07, :22, :37, :52):
H/15 * * * * 每隔十五分钟执行一次
# Every ten minutes in the first half of every hour (three times, perhaps at :04, :14, :24):
H(0-29)/10 * * * * 每隔小时的前半小时内,每隔10分钟执行一次
# Once every two hours at 45 minutes past the hour starting at 9:45 AM and finishing at 3:45 PM every weekday:
45 9-16/2 * * 1-5 每个工作日从上午 9:45 开始,每隔两个小时执行一次,直到下午 3:45 结束
# Once in every two hour slot between 8 AM and 4 PM every weekday (perhaps at 9:38 AM, 11:38 AM, 1:38 PM, 3:38 PM):
H H(8-15)/2 * * 1-5 每个工作日的上午 8 点到下午 4 点之间的每个两小时时间段内执行一次