函数1：
/**
* @brief Clears the EXTI's line pending flags.
* @param EXTI_Line: specifies the EXTI lines flags to clear.
* This parameter can be any combination of EXTI_Linex where x can be (0..19).
* @retval None
*/
void EXTI_ClearFlag(uint32_t EXTI_Line)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(EXTI_Line));
EXTI->PR = EXTI_Line;
}
函数2：
/**
* @brief Clears the EXTI's line pending bits.
* @param EXTI_Line: specifies the EXTI lines to clear.
* This parameter can be any combination of EXTI_Linex where x can be (0..19).
* @retval None
*/
void EXTI_ClearITPendingBit(uint32_t EXTI_Line)
{
/* Check the parameters */
assert_param(IS_EXTI_LINE(EXTI_Line));
EXTI->PR = EXTI_Line;
}
这两个函数，功能描述只有一字之差，但是代码实现完全一致，请问这两个函数区别在哪里？或者说什么情况下使用哪一个函数 |
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楼主
