使用QT5 实现的FTP工具，里面还有tcp通信。实现的功能是局域网文件传输，可自定义传输控制协议(Using QT5 implementation of the FTP tool, there are TCP communications. The realization of the function is LAN file transfer, you can customize the transmission control protocol)

fu服务器对每个客户端都建立一个线程，实现局域网文件功能共享分发(Qt5 tcpThe Fu server creates a thread for each client to implement the shared distribution of the LAN file function)