采用给予P2P方式的即时通讯系统，分服务端、客户端两不分P2PSvr、CCIMSystem；客户端CCIMSystem下还包含NetTransfer、DbAccess两个DLL工程-Given the way the use of P2P real-time communication systems, sub-service client, the client, regardless of the two P2PSvr, CCIMSystem client also includes CC