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)

用于QT5.0以上版本,解决5.0版本以上取消FTP函数(For above QT5.0 version, solve above 5.0 cancel the FTP function)

Qt5 FTP's Get and put method by QNetworkAccessManager