这一个我自己写的队列类，以缓冲区为接口，适用于大数据量进出队列操作，缺点是其内部自分配一连续内存空间，而不是以链表模式编写，队列最大长度无法改变。-The queue class, I wrote it myself in order to buffer the interface, out of the queue operations for the large amount of data, the disadvantage is that since its internal alloc