解决get_week的有效值与IS_RTC_WEEKDAY判断有效值不一致的问题。 get_week获取的值是0-6.而stm32f4xx_rtc.h中IS_RTC_WEEKDAY中判断的有效值是1-7.当设置日期是周日时，会有问题。
解决get_week的有效值与IS_RTC_WEEKDAY判断有效值不一致的问题。
get_week获取的值是0-6.而stm32f4xx_rtc.h中IS_RTC_WEEKDAY中判断的有效值是1-7.当设置日期是周日时，会有问题。

ArdaFu/rt-thread,weety/rt-thread,geniusgogo/rt-thread,geniusgogo/rt-thread,igou/rt-thread,ArdaFu/rt-thread,igou/rt-thread,nongxiaoming/rt-thread,wolfgangz2013/rt-thread,gbcwbz/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,RT-Thread/rt-thread,AubrCool/rt-thread,weety/rt-thread,AubrCool/rt-thread,wolfgangz2013/rt-thread,AubrCool/rt-thread,nongxiaoming/rt-thread,yongli3/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,FlyLu/rt-thread,zhaojuntao/rt-thread,FlyLu/rt-thread,wolfgangz2013/rt-thread,armink/rt-thread,igou/rt-thread,zhaojuntao/rt-thread,armink/rt-thread,hezlog/rt-thread,hezlog/rt-thread,zhaojuntao/rt-thread,RT-Thread/rt-thread,weety/rt-thread,ArdaFu/rt-thread,AubrCool/rt-thread,zhaojuntao/rt-thread,weiyuliang/rt-thread,yongli3/rt-thread,FlyLu/rt-thread,wolfgangz2013/rt-thread,weiyuliang/rt-thread,RT-Thread/rt-thread,AubrCool/rt-thread,yongli3/rt-thread,AubrCool/rt-thread,zhaojuntao/rt-thread,armink/rt-thread,armink/rt-thread,AubrCool/rt-thread,FlyLu/rt-thread,igou/rt-thread,FlyLu/rt-thread,wolfgangz2013/rt-thread,wolfgangz2013/rt-thread,FlyLu/rt-thread,gbcwbz/rt-thread,gbcwbz/rt-thread,armink/rt-thread,gbcwbz/rt-thread,RT-Thread/rt-thread,weiyuliang/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,geniusgogo/rt-thread,gbcwbz/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,RT-Thread/rt-thread,weety/rt-thread,igou/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,hezlog/rt-thread,yongli3/rt-thread,hezlog/rt-thread,gbcwbz/rt-thread,igou/rt-thread,ArdaFu/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,wolfgangz2013/rt-thread,armink/rt-thread,RT-Thread/rt-thread,weety/rt-thread,nongxiaoming/rt-thread,armink/rt-thread,zhaojuntao/rt-thread,geniusgogo/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,FlyLu/rt-thread,yongli3/rt-thread,zhaojuntao/rt-thread,ArdaFu/rt-thread,igou/rt-thread,weiyuliang/rt-thread,nongxiaoming/rt-thread,geniusgogo/rt-thread,yongli3/rt-thread,yongli3/rt-thread,geniusgogo/rt-thread