计算机导论 课本例子及习题集合 2.全加器

def FA(a,b,c):
	Carry=(a and b)or(b and c)or(a and c)
	Sum=(a and b and c)or(a and (not b) and (not c))\
	     or((not a)and b and (not c))or ((not a)and (not b)and c)
	return Carry,Sum