本文推广了Petri网的概念。新定义的广义Petri网可用于描述排队系统,文中给出了用广义Petri网描述排队系统,即建立排队系统的广义Petri网的步骤,还给出了关于广义Petri网的一些初步结果。 This article extends the concept of Petri nets. The newly defined generalized Petri net can be used to describe the queuing system. In this paper, the generalized Petri net is used to describe the queuing system, that is to say, to establish the generalized Petri net which queues the system. Some preliminary results about the generalized Petri nets are also given.