问题解决了,不是我自己的问题,应该是官方的问题。
LL库为了F3之间通用,整了一堆别名,如下描述
/******************************************************************************/
/* For a painless codes migration between the STM32F3xx device product */
/* lines, the aliases defined below are put in place to overcome the */
/* differences in the interrupt handlers and IRQn definitions. */
/* No need to update developed interrupt code when moving across */
/* product lines within the same STM32F3 Family */
/******************************************************************************/