經(jīng)過下列運(yùn)算后GetHead(Q)的值是()。 InitQueue(Q); EnQueue(Q,a); EnQueue(Q,b); DeQueue(Q,x);
A.a B.b C.1 D.2
A.S->rear==S->front B.S->rear+1)%maxsiae==s->front C.S->rear==0 D.s->front==0