中断不受其他函数影响，中断触发条件有上升沿，下降沿与电平状态改变此处百度了解什么是上升沿，下降沿硬件中断只有2和3管脚支持下列程序中延时函数并不会影响中断函数，因此中断函数是实时的RISING211HIGH11一般不使用取消中断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