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, implements server-side reading exam questions from a file, and through the socket to the client, the user within a certain period of time in order