考试系统，java，实现了服务器端从文件读取考试题，并通过socket传给客户端，用户在一定时间内按顺序答题。可以作为一个此类应用的简单参考实现。-Examination system, java, the realization of the server-side to read from the document examination, and through socket to the client, the user in a certain period of time accor