calendar:seconds_to_time/1

把秒数转为时间

用法：

seconds_to_time(Seconds) -> time()

内部实现：

-type secs_per_day() :: 0..?SECONDS_PER_DAY.
-spec seconds_to_time(Seconds) -> time() when
      Seconds :: secs_per_day().
seconds_to_time(Secs) when Secs >= 0, Secs 
    Secs0 = Secs rem ?SECONDS_PER_DAY,
    Hour = Secs0 div ?SECONDS_PER_HOUR,
    Secs1 = Secs0 rem ?SECONDS_PER_HOUR,
    Minute =  Secs1 div ?SECONDS_PER_MINUTE,
    Second =  Secs1 rem ?SECONDS_PER_MINUTE,
    {Hour, Minute, Second}.

这个函数把给出的秒数 Seconds 转为时间。

calendar:seconds_to_time(12345).

参数 Seconds 必须小于一天的秒数（86400）。

calendar:seconds_to_time(123456).