NS-3是以C++为主要开发语言，采用Python作为配置、部署语言的新一代网络仿真系统，本文是学习权威指南，是学习Ns-3系统的入门级权威资料。-NS-3 is a C++ as the main development language, using Python as the configuration language to deploy simulation environment，Ns-3 is a new generation of network simulation system, this is the authoritative study guide to learn Ns-3 system of entry-level authoritative information.