基于QT5的TCP客户端通讯，直接将这个工程在QT5编译，可以通过，并且生成的exe可以和下位机进行通讯，适合STM32以及单片机的通讯，自己可以修改。(QT5 based TCP client communications, the project will be directly compiled in QT5, you can pass, and generated exe can communicate with the lower computer, suitable for STM32 and singlechip communications, you can modify.)