如下面所示：
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; //NRF24L01 中断响应
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占优先级 0
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; //子优先级为1
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
NVIC_Init(&NVIC_InitStructure);
则对应的中断函数就是
STM3210x_it.c
void EXTI0_IRQHandler(void)
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