可以自动切换ip地址,绿色不需要安装，不需要注册-Can automatically switch ip address, Green Do not need installation, do not need to register

C# 实现的网络切换软件，用于内网与外网的切换，可自定义IP等参数-C# implementation of network switching software for the network and external network switches, IP and other parameters can be customized