模拟银行的排队叫号系统，分成一个服务器和n个客户端，客户端即每个窗口拥有，有对公业务、对私业务、结算业务等分类-Simulated bank call queuing system, divided into a server and n clients, the client that each window has, there is on the public business, on private business, settlement, etc. and