求一份F4系列RTC闹钟的例程，要求是每天早上启动，下午关闭。是不是A、B闹钟都要设置？
[mw_shl_code=c,true]void RTC_Set_AlarmA(u8 week,u8 hour,u8 min,u8 sec)
{
        EXTI_InitTypeDef   EXTI_InitStructure;
        RTC_AlarmTypeDef RTC_AlarmTypeInitStructure;
        RTC_TimeTypeDef RTC_TimeTypeInitStructure;
        
        RTC_AlarmCmd(RTC_Alarm_A,DISABLE);//1رÕÄÖÖóA
        
  RTC_TimeTypeInitStructure.RTC_Hours=hour;//D¡ê±
        RTC_TimeTypeInitStructure.RTC_Minutes=min;//·ÖÖó
        RTC_TimeTypeInitStructure.RTC_Seconds=sec;//Ãë
        RTC_TimeTypeInitStructure.RTC_H12=RTC_H12_AM;
  
        RTC_AlarmTypeInitStructure.RTC_AlarmDateWeekDay=week;//DÇÆú
        RTC_AlarmTypeInitStructure.RTC_AlarmDateWeekDaySel=RTC_AlarmDateWeekDaySel_WeekDay;//°′DÇÆúÄÖ
        RTC_AlarmTypeInitStructure.RTC_AlarmMask=RTC_AlarmMask_None;//¾«è·Æ￥ÅäDÇÆú￡¬ê±·ÖÃë
        RTC_AlarmTypeInitStructure.RTC_AlarmTime=RTC_TimeTypeInitStructure;
  RTC_SetAlarm(RTC_Format_BIN,RTC_Alarm_A,&RTC_AlarmTypeInitStructure);

        
        RTC_ClearITPendingBit(RTC_IT_ALRA);//Çå3yRTCÄÖÖóAμıêÖ¾
  EXTI_ClearITPendingBit(EXTI_Line17);//Çå3yLINE17éÏμÄÖD¶Ï±ê־λ
        
        RTC_ITConfig(RTC_IT_ALRA,ENABLE);//¿aÆôÄÖÖóAÖD¶Ï
        RTC_AlarmCmd(RTC_Alarm_A,ENABLE);//¿aÆôÄÖÖóA
        
        EXTI_InitStructure.EXTI_Line = EXTI_Line17;//LINE17
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;//ÖD¶Ïê¼t
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; //éÏéyÑØ′￥·￠
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;//ê1ÄüLINE17
  EXTI_Init(&EXTI_InitStructure);//ÅäÖÃ

        NVIC_InitStructure.NVIC_IRQChannel = RTC_Alarm_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x02;//ÇàÕ¼óÅÏ輶1
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x02;//×óóÅÏ輶2
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//ê1Äüía2¿ÖD¶Ïí¨μà
  NVIC_Init(&NVIC_InitStructure);//ÅäÖÃ
}[/mw_shl_code]



[mw_shl_code=c,true]
void RTC_Alarm_IRQHandler(void)
{   
        if(RTC_GetFlagStatus(RTC_FLAG_ALRAF)==SET)//ALARM AÖD¶Ï?
        {
                RTC_ClearFlag(RTC_FLAG_ALRAF);//Çå3yÖD¶Ï±êÖ¾
                printf("ALARM A! ");
        }   
        EXTI_ClearITPendingBit(EXTI_Line17);        //Çå3yÖD¶ÏÏß17μÄÖD¶Ï±êÖ¾                                                                                          
}[/mw_shl_code]

每天要怎么设置，不是某一星期？闹钟B要怎么设置