此源码是用vs2005+sql2000,验证模式是混合，用户名sa，密码是空。功能有：发送文件，接收文件，查看公告，发布公告，聊天室，投票等！系统登陆用户名：mr，密码：mrsoft-This source is vs2005+ Sql2000, authentication mode is mixed, username sa, password is empty. Functions are: to send documents, receiving documents, view the