Qt5自带的modbusTCP类实现的TCP modbus通信，程序包含客户端和服务器，开发环境为ubuntu16.04+Qt5.6.1，如打不开服务器，请将编译出的程序用sudo运行。-Qt5 comes with the modbusTCP class to achieve the Modbus TCP communication, the program contains the client and server, the development environment for ubun