C语言当中的预处理#define如下面这个定义,这是起什么作用的?#define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \((PERIPH) == GPIOB) || \((PERIPH) == GPIOC) || \((PERIPH) == GPIOD) || \((PERIPH) == GPIOE) || \((PERIPH) == GP
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