A、front==rear B、front!=NULL C、rear!=NULL D、front==NULL
A、 front = =rear B、 (front-1)%n= =rear C、 (rear+1)%n= =front D、 (rear-1)%n= = front
A、A. front = =rear B、B. (front-1)%n= =rear C、C. (rear+1)%n= =front D、D. (rear-1)%n= = front
A、front=p->next; B、front->next=p->next; C、front=p; D、front->next=p;
A、A.front=p->next; B、B.front->next=p; C、C.front=p; D、D.front->next=p->next;
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