这是一款不用数据库的即使通讯聊天软件，该软件通过对文件的读写，存储数据，而且对网络编程给予充分的运用。是网络编程的经典应用。-This is not a database even if the communication chat software, the software through the document to read and write, store data, but also for network programming fully utilized. Is a clas