这是一个银行排队叫号系统，可以取号排队，等待叫号，还可以知道队列还剩多少人-This is a banking system, called the queue, the queue can take, and wait for the call, but also know how many people left Queue

这是一个银行排队叫号系统，可以取号排队，等待叫号，还可以知道队列还剩多少人-This is a banking system, called the queue, the queue can take, and wait for the call, but also know how many people left Queue