A.rear%MAX==front B.rear-1)%MAX==front C.rear+1)==front D.rear+1)%MAX==front
A.A、B、C、D B.A、C、B、D C.B、A、C、D D.D、C、B、D
A.隊(duì)中B.隊(duì)頭C.隊(duì)尾D.隊(duì)列