Date TimeDateTime.IsInPreviousNSeconds本页总览DateTime.IsInPreviousNSeconds 指示此日期时间是否会在系统当前日期和时间确定的上一秒数中出现。请注意,当传递一个在当前秒内出现的值时,此函数将返回 false。 Syntax DateTime.IsInPreviousNSeconds( dateTime as any, seconds as number) as logical Remarks