STM32 关于RTC的问题

有没有人遇见过
now = time(RT_NULL);
time_value = localtime(&now);
rt_kprintf(“clock: %04d-%02d-%02d %02d:%02d:%02d
“,time_value->tm_year,time_value->tm_mon+1,time_value->tm_mday,time_value->tm_hour,time_value->tm_min,time_value->tm_sec);
set_time(12,12,12);
set_date(2018,12,22);
now = time(RT_NULL);
time_value = localtime(&now);
rt_kprintf(“clock: %04d-%02d-%02d %02d:%02d:%02d
“,time_value->tm_year,time_value->tm_mon+1,time_value->tm_mday,time_value->tm_hour,time_value->tm_min,time_value->tm_sec);

结果
\ | /

• RT - Thread Operating System
  / | \ 3.0.1 build Apr 4 2018
  2006 - 2017 Copyright by rt-thread team
  clock: 0122-12-22 10:11:37
  clock: 0122-12-22 10:11:12
  msh >

写进去的是2018年，读出来的是2022年，月日时分秒都可以