医学影像电子学△公心回 (④异或逻辑 A BY A- (Exclusive-OR)B =1 Y4=A⊕B=AB+AB 0 (⑤)同或逻辑 (异或非) (Exclusive-NOR) A B Ys Y=A⊕B =1 0 0 =AB+AB 0 =A⊙B