M/G/1 queuing system for two types of negative customers is discussed. One is that those who first come are first served (FCFS). The other is that those who come late are first served (LCFS).

• 主要探讨了两类负顾客的M/G/1排队系统；一类是先到先服务(FCFS)；另一类是后到先服务(LCFS).