time_format = '%H.%M.%S.%6N'
timestamp = DateTime.now.strftime(time_format) # this works, it shows something like "10.09.53.595977"
DateTime.strptime(timestamp, time_format) # error, in `strptime': invalid date (ArgumentError)
那么如果我真的想解析微秒(6位数字),是否可以让#strptime工作?