用了三个队列的数据结构，用随机数来模拟飞机请求，填写一个队列，另外一个队列就是飞机场停着的飞机，最后一个是空中的飞机队列-spent three queue data structure used to simulate random aircraft requested to fill in a queue, another is a queue of aircraft parked at the airport, the last one is the air aircraft Queue