Qt4下开发的基于套接字的c/s结构的聊天程序-Developed based on Qt4 socket c/s chat program structure

my qt4 version of vypress chat

根据网上的经典的基于QT4的局域网聊天代码做修改，方便从QT5入手的新手学习。共享、进步-According to the online classic QT4-based LAN chat code to make modifications to facilitate the novice to learn from QT5 start.