/**
  * @brief  Checks whether the specified RTC flag is set or not.
  * @param  RTC_FLAG: specifies the flag to check.
  *   This parameter can be one of the following values:
  *     @arg RTC_FLAG_RECALPF: RECALPF event flag.
  *     @arg RTC_FLAG_TAMP3F: Tamper 3 event flag.
  *     @arg RTC_FLAG_TAMP2F: Tamper 2 event flag.
  *     @arg RTC_FLAG_TAMP1F: Tamper 1 event flag.
  *     @arg RTC_FLAG_TSOVF: Time Stamp OverFlow flag.
  *     @arg RTC_FLAG_TSF: Time Stamp event flag.
  *     @arg RTC_FLAG_WUTF: WakeUp Timer flag.
  *     @arg RTC_FLAG_ALRBF: Alarm B flag.
  *     @arg RTC_FLAG_ALRAF: Alarm A flag.
  *     @arg RTC_FLAG_INITF: Initialization mode flag.
  *     @arg RTC_FLAG_RSF: Registers Synchronized flag.
  *     @arg RTC_FLAG_INITS: Registers Configured flag.
  *     @argRTC_FLAG_SHPF: Shift operation pending flag.
  *     @arg RTC_FLAG_WUTWF: WakeUp Timer Write flag.
  *     @arg RTC_FLAG_ALRBWF: Alarm B Write flag.
  *     @arg RTC_FLAG_ALRAWF: Alarm A write flag.
  * @retval The new state of RTC_FLAG (SET or RESET).
  */
如上，  @argRTC_FLAG_SHPF: Shift operation pending flag.这句前面没有空格，要不要改一下库？