Introduction - If you have any usage issues, please Google them yourself
Write a program to achieve a variety of basic operations of the order queue, and based on the design of a main program performs the following functions: 1. Initialize the queue q. 2. Q is determined whether the queue is empty. 3. Turn into the team elements a, b, c. 4. Dequeue an element, the output of the element. 5. Q the number of elements in the output queue. 6. Turn into a queue element d, e, f. 7. Q the number of elements in the output queue. 8. Sequence output the team. 9. Release queue.